Mean Well RSP-150-5 Power Supply
5V 30A · 150W rated · active PFC · fanless · remote ON/OFF · 199 × 99 × 30mm · UL 62368-1
The 150W 5V supply with a power factor of 0.93 or better and a built-in remote ON/OFF line — the two features that separate the RSP family from the LRS series, in a fanless 30mm case small enough for a 1U cabinet, supplied by Excelled Display, LED display manufacturer and component supplier for global B2B integrators.
Mean Well RSP-150-5 Power Supply at a Glance
What is it? The RSP-150-5 is the 5V model in the MEAN WELL RSP-150 series of enclosed single-output power supplies with active power factor correction. It accepts a full-range 85–264VAC input with no selector switch and delivers a regulated 5V DC output at up to 30A in a 199 × 99 × 30mm metal case.
Why choose it over an LRS supply? Two reasons, and both are on the specification sheet. First, built-in active PFC with a power factor above 0.93 at 230VAC — the LRS series has no PFC stage at all, and its datasheet carries an explicit EN61000-3-2 harmonic restriction as a result. Second, built-in remote ON/OFF control, which lets the screen’s control system switch the supply on and off over a signal line instead of switching mains.
Does it have a fan? No. The RSP-150 is cooled by free air convection. The datasheet features list states it directly: “Cooling by free air convection.” There is no fan, no bearing and no moving part to wear out.
How much power does it deliver? 150W — exactly what the name says. 5V × 30A = 150W, so the series number is honest at this voltage. That is worth confirming rather than assuming, because the LRS range does not behave this way: the LRS-350-5 delivers 300W and the LRS-450-5 delivers 375W.
What does it take in? A universal 85–264VAC input, or 120–370VDC, at 47–63Hz. Because the input range is full-range, there is no 115/230V selector switch to set — removing the single most common commissioning error on the LRS-family supplies. Typical draw is 1.6A at 115VAC and 0.8A at 230VAC.
What protections are built in? Overload at 105–135% of rated power using constant-current limiting with automatic recovery, over-voltage shutdown at 5.5–6.75V requiring a re-power, and over-temperature shutdown with automatic recovery, plus short-circuit protection.
What is it used for? LED display modules and cabinets where the project specification calls for PFC or remote switching, plus factory automation, test and measurement and burn-in equipment. Configuration, MOQ and pricing from our sales team.
Active PFC on the RSP-150-5 and the EN61000-3-2 Line
Power factor correction is not a marketing feature. It is the difference between a supply a European project is allowed to install and one it is not, and the RSP-150-5 sits on the right side of that line.
MEAN WELL’s LRS series datasheets state plainly that those units do not meet the harmonic current requirements of BS EN/EN61000-3-2, and set out conditions under which they should not be used. The RSP-150 datasheet carries no such restriction: it lists compliance to BS EN/EN61000-3-2 and EN61000-3-3 in its EMC emission section, because the active PFC stage is what makes that compliance possible.
| Power factor performance | RSP-150-5 (datasheet figures) |
|---|---|
| Power factor at 230VAC | PF > 0.93 at full load |
| Power factor at 115VAC | PF > 0.98 at full load |
| Harmonic compliance | BS EN/EN61000-3-2 and EN61000-3-3 listed as compliant |
| PFC stage | Active, shown in the datasheet block diagram between the rectifier and the PWM switching stage |
| PFC switching frequency | 67KHz (PFC and PWM stages both 67KHz) |
The trade-off is cost, and it is real. If your project has no PFC requirement and no harmonic limit, an LRS-350-5 power supply delivers twice this model’s wattage for less money. PFC is a specification you buy because something requires it, not because it makes the screen brighter.
RSP-150-5 Specifications: The Datasheet Parameters That Matter on a Screen
Transcribed from the MEAN WELL RSP-150 specification sheet (RSP-150-SPEC, revision dated 2025-09-22) for the 5V model. Unless stated otherwise, readings are taken at 230VAC input, rated load and 25°C ambient.
| Parameter | RSP-150-5 specification |
|---|---|
| DC output voltage | 5V, adjustable 4.75 ∼ 5.5V via the +V ADJ. potentiometer |
| Rated current | 30A, current range 0 ∼ 30A |
| Rated power | 150W |
| Ripple & noise (max.) | 100mVp-p, measured at 20MHz bandwidth with a 12″ twisted pair terminated by a 0.1µF and 47µF parallel capacitor |
| Voltage tolerance | ±2.0% (includes set-up tolerance, line regulation and load regulation) |
| Line regulation | ±0.5% |
| Load regulation | ±1.0% from 0% to 100% rated load |
| Set-up / rise time | 600ms, 30ms at full load |
| Hold-up time (typ.) | 16ms at full load |
| Input voltage range | 85 ∼ 264VAC universal full range, no selector switch; 120 ∼ 370VDC |
| Input frequency | 47 ∼ 63Hz |
| Power factor (typ.) | PF > 0.93 / 230VAC, PF > 0.98 / 115VAC at full load |
| Efficiency (typ.) | 87% at 5V (series spans 81.5% at 3.3V to 90% at 48V) |
| AC current (typ.) | 1.6A/115VAC, 0.8A/230VAC |
| Inrush current (typ.) | 45A/230VAC cold start |
| Leakage current | <2mA / 240VAC |
| Overload protection | 105 ∼ 135% rated output power; constant current limiting, recovers automatically once the fault is removed |
| Over-voltage protection | 5.5 ∼ 6.75V; shuts down the output, re-power required to recover |
| Over-temperature protection | Shuts down output; recovers automatically once temperature falls |
| Remote control | Built in via CN1: 0 ∼ 0.8VDC = power ON, 4 ∼ 10VDC = power OFF |
| Cooling | Free air convection — fanless, no moving parts |
| Working temperature | −30 ∼ +70°C with derating (refer to the derating curve) |
| Working humidity | 20 ∼ 90% RH, non-condensing |
| Storage | −40 ∼ +85°C, 10 ∼ 95% RH |
| Temperature coefficient | ±0.05%/°C (0 ∼ 50°C) |
| Vibration | 10 ∼ 500Hz, 2G, 10 min per cycle, 60 min each along X, Y and Z axes |
| Operating altitude | Up to 5,000m under UL/IEC/EN 62368; up to 2,000m under EN61558 / EN50178 / EN60664-1 / EN62477-1 |
| Withstand voltage | I/P–O/P 4KVAC; I/P–FG 2KVAC; O/P–FG 0.5KVAC |
| Isolation resistance | 100MΩ / 500VDC at 25°C, 70% RH |
| Dimensions (L×W×H) | 199 × 99 × 30mm (Case No. 215A) |
| Weight / packing | 0.6kg per unit; 24pcs / 15.4kg / 0.89CUFT per carton |
| MTBF | 2253.9K hours min. (Telcordia SR-332); 290.7K hours min. (MIL-HDBK-217F at 25°C) |
| Warranty | 3 years (manufacturer’s stated warranty on the datasheet) |
Three of these entries are easy to skim past and expensive to miss: the 5,000µF external capacitance limit covered in the sizing section, the two separate derating curves covered in the thermal section, and the fact that over-voltage protection does not self-recover while overload protection does.
Remote ON/OFF on the RSP-150-5: Switching a Screen Without Switching Mains
The RSP-150-5 carries a built-in remote ON/OFF function on a dedicated connector, CN1. It is the feature that most clearly separates the RSP-150 from the RSP-200 one step up, whose datasheet lists no remote control function at all.
| CN1 signal | Behaviour |
|---|---|
| 0 ∼ 0.8VDC | Output ON |
| 4 ∼ 10VDC | Output OFF |
| Open circuit | Treat as a signal you must drive deliberately — wire the control line, do not leave CN1 floating and assume a state |
| Connector | CN1: JST B-XH or equivalent (optional part). Mating housing JST XHP, terminal JST SXH-001T or equivalent |
| Pin 1 / Pin 2 | RC+ / RC− |
Why a signal-level switch beats a mains contactor
- You avoid switching the AC side. Turning a supply off at mains means a contactor or relay rated for the inrush the supply presents — and the RSP-150-5 draws a 45A cold-start inrush at 230VAC, which ages contacts that were not chosen for it.
- Control logic can drive it directly. A 0–10V control line is within reach of the same controller that already sequences the screen. The screen can power its own supplies down in a defined order.
- Standby becomes a software decision. A screen that must go dark outside trading hours but stay reachable can drop its power stage without losing the AC feed to the cabinet’s other equipment.
- But the supply still idles. Remote OFF stops the output; it does not disconnect mains. If the requirement is zero standby consumption or full isolation for service, a mains-side disconnect is still needed. The two are complements, not substitutes.
RSP-150-5 Derating: Two Curves, and the 5V Model Is Not on the Higher One
The working temperature range is −30 to +70°C, but the datasheet does not draw one derating curve for the series. It draws two: one for the RSP-150-12 to RSP-150-48 models, and a separate one for the RSP-150-3.3 to RSP-150-7.5 group. The 5V model belongs to the second group, and it must be read from that curve.
This is the kind of detail that quietly breaks a design. A cabinet designed around the curve printed for the 12V model will be over-loaded on a 5V model, because the two curves are not interchangeable.
- Read the curve for the voltage you are buying. The 3.3V–7.5V group curve is the governing one for the RSP-150-5 — not the 12V–48V curve.
- Read it at your worst-case ambient. A cabinet in direct summer sun can sit well above the ambient it sees for most of the year. Size at the hottest condition the screen will actually encounter.
- Read it in the mounting orientation specified. The curves are drawn for horizontal mounting. A supply installed on its side has a different thermal path.
- Derate again for altitude. Fanless models take an additional ambient derating of 3.5°C per 1,000m above 2,000m.
The second derating chart: input voltage
The datasheet carries a second chart, output derating versus input voltage, and it matters on 115V mains. The allowable load falls as the input voltage drops below about 115VAC, and the datasheet note is explicit that derating may be needed under low input voltages. On a site where the nominal 120V supply sags under load, a supply sized at exactly 100% of rating on paper is not running inside its curve in practice.
Why fanless is a durability choice, not just a noise choice
- No wear item. A fan is the most common mechanical failure in a power supply. The 2,253.9K-hour Telcordia MTBF figure reflects a design with nothing to wear out.
- No air path through the supply. A fan-cooled unit draws dust, metal particles and moisture across its internals for its whole service life. A convection-cooled unit does not.
- No thermal threshold at which it becomes audible. For an indoor screen in retail, a boardroom or a studio, that is worth more than a percentage point of efficiency.
- But convection is slower than forced air. A fanless supply in a sealed, unvented box is worse off than a fan-cooled one, because there is no mechanism at all to move heat out. The cabinet still has to let hot air rise and escape.
How Many LED Modules Can One RSP-150-5 Power?
There is no single correct answer, and any supplier who gives one without asking about your module is guessing. The count depends on the maximum power rating of your LED module from its own datasheet, the number of modules on the supply, and the headroom you choose to leave.
- Start from the real rating. 150W at 5V, which is 30A.
- Apply a load ceiling. A common planning rule in LED cabinet builds is to keep continuous load at or below about 80% of rated output — roughly 120W, or 24A, on an RSP-150-5. This is an engineering convention rather than a figure published by MEAN WELL, so treat it as a starting point and confirm it against your own project’s thermal and warranty conditions.
- Divide by the module’s maximum power, taken from the module datasheet rather than a marketing page — a full-white test pattern is exactly the condition a screen is commissioned under.
- Check the current path. 24A still has to leave through the terminal block and reach the modules. Confirm the wire gauge, the terminal rating and the number of feeds.
- Check the capacitance you are adding. The datasheet recommends that external output capacitance should not exceed 5,000µF on this model. That ceiling applies to the 3.3V, 5V, 7.5V and 12V models specifically.
Worked as an Illustrative Example — substitute your own module figures; these numbers are for the arithmetic only:
| Step | Illustrative calculation |
|---|---|
| Supply rating | 150W / 30A at 5V |
| Usable at 80% planning ceiling | 120W / 24A |
| Module maximum power (illustrative) | 25W per module |
| Modules per supply (120 ÷ 25) | 4 modules, with 20W of the usable budget unspent |
| Modules if pushed to 100% | 6 modules — no headroom, and no fan to call on if the cabinet runs hot |
The 5,000µF limit, and why it exists
Adding bulk capacitance across the output of a power supply is standard practice for smoothing load transients, and on a screen with rapidly switching module loads it is tempting to add a great deal of it. The datasheet caps the recommendation at 5,000µF for this model, and the reason is the constant-current limiting overload characteristic covered in the protection section: a supply that limits current rather than shutting down cleanly has to charge whatever capacitance sits on its output, and an unbounded bank turns a normal start-up into an overload event.
If your cabinet design already carries a large capacitor bank on the 5V rail, raise it at the quotation stage. The correct answers are either to stay under the ceiling, or to move to a supply whose charging behaviour suits the load — not to exceed the limit and hope.
Parallel operation is not a function this model provides. If the screen outgrows one supply, split the cabinet into independently supplied sections rather than paralleling two RSP units. For the control and signal side of the same cabinet, the LED control system collection covers how sending cards, receiving cards and processors are powered and wired alongside the supplies.
RSP-150-5 Wiring: 7-Pin Terminal Assignment and the CN1 Connector
The RSP-150-5 terminates in a 7-pin screw terminal block. The assignment is fixed and printed on the unit, and getting it wrong is the fastest way to destroy a supply on first power-up:
| Pin | Assignment | Practical note |
|---|---|---|
| 1 | AC/L — live | Mains live input |
| 2 | AC/N — neutral | Mains neutral input |
| 3 | FG — frame ground | Bond to the cabinet earth; do not omit |
| 4 ∼ 5 | DC OUTPUT −V | Two terminals, shared negative rail |
| 6 ∼ 7 | DC OUTPUT +V | Two terminals, shared positive rail |
There is no input voltage switch to set
This is a genuine commissioning advantage over the LRS-family supplies, which carry a 115/230V selector that ships in one position and destroys the unit if mains is applied in the wrong one. The RSP-150-5 is full-range 85–264VAC by design. There is nothing to select and nothing to get wrong — which also makes it the safer part to stock across regions, because one part number covers both 120V and 230V sites.
Split the load across the output terminals
At 30A, using both terminals on each rail keeps contact resistance and local heating down. Keep the DC run to the first module as short as the cabinet allows — at 5V, cable resistance takes a proportionally large bite out of the delivered voltage.
Adjust the output at the far end of the run, not at the supply
The +V ADJ. potentiometer sets output between 4.75V and 5.5V. LED modules are typically specified at 5V, and the voltage measured at the module input is lower than the voltage at the supply terminals once the cable run is under load. Measure at the far end of the run, then trim the potentiometer to bring the module input back to its specified voltage. Trimming the supply so its own terminals read 5V leaves the modules under-volted.
The same wiring discipline applies to the control hardware inside the cabinet. Our guides to the MCTRL660 LED display controller and the Colorlight X2 LED video processor cover the signal side, and the Huidu HD-A5 LED display player covers standalone playback for screens that run without a PC.
RSP-150-5 vs RSP-200-5 vs LRS-350-5: Three Ways to Get 5V
Buyers comparing these three usually start with wattage and stop there. The three numbers that actually decide the choice are power factor, remote control and case size — and the cheapest option wins on two of them.
| Parameter | RSP-150-5 | RSP-200-5 | LRS-350-5 |
|---|---|---|---|
| Output | 5V / 30A | 5V / 40A | 5V / 60A |
| Rated power | 150W | 200W | 300W |
| Active PFC | Yes, PF > 0.93 | Yes, PF > 0.95 | No PFC stage |
| Remote ON/OFF | Built in (CN1) | Not provided | Not provided |
| Cooling | Fanless | Fanless | Built-in fan |
| Overload behaviour | Constant current limiting, auto-recovery | Hiccup mode, auto-recovery | Hiccup mode, auto-recovery |
| Input range | 85∼264VAC full range | 88∼264VAC full range | 90∼132 / 180∼264VAC by switch |
| I/P–O/P withstand | 4KVAC | 3KVAC | 3.75KVAC |
| Efficiency (typ.) | 87% | 87% | 83.5% |
| Dimensions | 199×99×30mm | 215×115×30mm | 215×115×30mm |
| Best for | PFC + signal-level switching in a small case | PFC without remote control, more current | Maximum 5V current per dollar |
Three differences a wattage comparison hides
- Remote ON/OFF is exclusive to the RSP-150 in this group. The RSP-200 datasheet lists no remote control function. If your cabinet control scheme needs to sequence supplies over a signal line, the RSP-150-5 provides it natively and the RSP-200-5 does not.
- The RSP-150-5 is physically the smallest. At 199 × 99 × 30mm it is 16mm shorter and 16mm narrower than the RSP-200-5 and LRS-350-5, both 215 × 115 × 30mm. In a tightly packed cabinet that difference decides how many supplies fit per row.
- The LRS-350-5 is more efficient at 5V despite being larger. 83.5% against 87% for the RSP-150-5. Bigger is not automatically better on this metric, and the waste-heat difference is real inside a sealed cabinet.
When the RSP-150-5 Is the Wrong Power Supply
A page that cannot tell you when not to buy something is a catalogue entry, not advice. The RSP-150-5 is the right answer for PFC-critical and remote-switched 5V work, and clearly wrong in the following cases:
| Situation | Why the RSP-150-5 does not fit |
|---|---|
| 5V load above 150W per supply section | The 30A ceiling is the limit of this model. Step up to the RSP-200-5 power supply at 40A, or split the cabinet into separately supplied sections. |
| No PFC or harmonic requirement, and cost is the deciding factor | PFC is the main thing you are paying for. An LRS-350-5 gives 300W of 5V for less money when nothing in the specification demands PFC. |
| Sealed, unventilated enclosure | This is the case where fanless is worse than fan-cooled. Convection needs a path for hot air to rise and escape; with no fan and no vents, heat has nowhere to go. |
| Sustained ambient above roughly 50°C | The 3.3V–7.5V derating curve falls away as ambient rises and there is no fan to compensate. A fan-cooled model holds its rating further up the curve. |
| A large capacitor bank on the 5V rail | The datasheet recommends external output capacitance not exceed 5,000µF on this model. If your design already exceeds that, the supply is the wrong part, not the bank. |
| Standby consumption must be zero | Remote ON/OFF stops the output; it does not disconnect mains. A mains-side disconnect is still required for zero standby or for service isolation. |
| High inrush is a problem on the site | 45A cold-start inrush at 230VAC. On a site with a limited supply or many supplies switched together, sequence the start-up or provide inrush limiting. |
| Modules that require 4.2V or 3.3V | The 5V model adjusts only between 4.75V and 5.5V. RSP-150-3.3 covers the 3.3V rail. |
Where the power supply is the wrong component to be choosing at all, the constraint is usually elsewhere in the system. On the indoor product side, pages such as the P3.91 rental LED display and the P2.5 indoor LED display set out the module-level specifications those decisions start from.
RSP-150-5 Compliance: UL 62368-1, EN61558 and Full-Range Input
The RSP-150 series is certified to UL62368-1, TUV BS EN/EN62368-1, BS EN/EN61558-1 and BS EN/EN61558-2-16, with additional approvals including EAC TP TC 004, CCC GB4943.1, BSMI CNS15598-1, AS/NZS 62368.1 and IS13252 (Part 1) / IEC60950-1. Withstand voltage between input and output is 4KVAC — higher than the 3KVAC of the RSP-200 and the 3.75KVAC of the LRS-200.
| Item | Detail from the RSP-150 datasheet |
|---|---|
| Safety standards | UL62368-1, TUV BS EN/EN62368-1, BS EN/EN61558-1, BS EN/EN61558-2-16, EAC TP TC 004, CCC GB4943.1, BSMI CNS15598-1, AS/NZS 62368.1, IS13252(Part1)/IEC60950-1 approved |
| One exclusion to note | The IS13252 (Part 1) / IEC60950-1 approval is stated “except for 7.5V, 13.5V, 48V” — the 5V model is inside that approval, but verify against the certificate for your specific batch and market |
| EMC emission | BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2 and -3, EAC TP TC 020, GB9254 Class B, GB17625.1, CNS15936 Class B |
| EMC immunity | BS EN/EN61000-4-2, 3, 4, 5, 6, 8, 11; BS EN/EN55035, light industry level; EAC TP TC 020 |
| Over-voltage category / altitude | Up to 2,000m under EN61558, EN50178, EN60664-1 and EN62477-1; up to 5,000m under UL/IEC/EN 62368 |
| RoHS | RoHS listed on the datasheet |
The single most useful compliance difference between this model and the equivalent LRS part is not a certificate on the list: it is the RSP-150’s EN61000-3-2 harmonic compliance, which the LRS datasheets explicitly disclaim. That one line is usually the whole reason a European project ends up specifying RSP rather than LRS.
RSP-150-5 Troubleshooting: No Output, Current Limiting and OVP Latch
This supply uses three different recovery behaviours across its protections, which is why the same visible symptom can have unrelated causes. Work through them in order; each step separates one cause from the others.
No output at all, and it stays off after a power cycle
- Possible cause: over-voltage protection has latched. Unlike the overload protection, OVP on this model shuts the output down and requires a re-power to recover.
- How to check: remove the load and re-power. If the output returns with no load connected, the trip was load-related rather than a supply failure.
- Fix: find what drove the output above 5.5–6.75V — typically a load fault or a wiring error — and correct it before reconnecting. A supply that trips OVP repeatedly under load is telling you something downstream is wrong, not that the supply is faulty.
Output holds up but the screen dims or drops out on load peaks
- Possible cause: overload protection in constant-current limiting mode. Between 105% and 135% of rated power the supply does not shut down — it limits current, so the output voltage sags instead of disappearing.
- How to check: measure DC current with the screen at full white. If it sits above 30A, the supply is limiting rather than failing.
- Fix: reduce the load per supply, split the cabinet into more sections, or move to a higher-current model. Do not treat a voltage sag under load as a supply defect until you have measured the current.
Output shuts down and recovers on its own
- Possible cause: over-temperature protection, which uses automatic recovery once the case cools.
- How to check: measure the case temperature and the cabinet ambient with the screen at full white, then compare against the 3.3V–7.5V derating curve at your actual load.
- Fix: if the load is outside the curve for that ambient, reduce the load or improve cabinet ventilation. On a fanless unit this is the critical step — there is no fan to mask a marginal thermal design.
The supply reads dead but mains is present at the terminals
- Possible cause: the remote ON/OFF line on CN1 is holding the output off. Between 4 and 10VDC on CN1 the output is disabled by design.
- How to check: measure the voltage on CN1 pins 1 and 2 (RC+ / RC−). A signal in the OFF window explains the symptom completely.
- Fix: correct the control signal at source. Remember that the AC terminals remain live whenever mains is connected, whatever state CN1 is holding the output in — isolate upstream before working inside the cabinet.
Supply starts normally but a downstream breaker trips on power-up
- Possible cause: cold-start inrush. The RSP-150-5 draws a 45A inrush at 230VAC, and a cabinet full of supplies switched simultaneously multiplies it.
- How to check: compare the number of supplies switched by one breaker against the breaker’s inrush tolerance.
- Fix: sequence start-up in groups, or provide inrush limiting. This is a system design issue, not a fault in any individual supply.
RSP-150-5 Datasheet and Series Documentation
The documents below are the manufacturer’s own files, hosted by MEAN WELL. They are the reference we work from, and the correct place to verify any specification quoted on this page.
| Document | What it covers |
|---|---|
| RSP-150 series datasheet (PDF) | Full specification table for all nine voltage models, both derating curves, block diagram, mechanical drawing and terminal pin assignment |
| RSP-150 series product page | All voltage variants with their individual model datasheets and certificates |
| Installation manual | Manufacturer installation guidance for the RSP enclosed series |
MEAN WELL prints a serial number on each unit that can be traced on the manufacturer’s own website. That is the authoritative way to confirm a batch’s provenance and production date — more reliable than any listing photograph, including ours.
Mean Well RSP-150-5: Frequently Asked Questions
QDoes the Mean Well RSP-150-5 have power factor correction?
Yes. The RSP-150-5 has a built-in active PFC stage with a typical power factor above 0.93 at 230VAC and above 0.98 at 115VAC at full load. The datasheet block diagram shows the PFC circuit between the rectifier and the PWM switching stage, running at 67KHz.
QDoes the RSP-150-5 have a fan?
No. The RSP-150-5 is cooled by free air convection and contains no fan. The datasheet features list states that cooling is by free air convection, and the series description confirms every model in the RSP-150 range is convection cooled for operation up to 70 degrees Celsius.
QHow many watts is the RSP-150-5?
150W. At 5V and 30A the arithmetic gives exactly 150W, so the series number matches the actual 5V rating on this model. That is not a rule across the MEAN WELL ranges, which is why the rated power should always be read from the specification table for the voltage you are buying.
QWhat is the remote ON/OFF function on the RSP-150-5?
The RSP-150-5 has a built-in remote control input on connector CN1. Applying 0 to 0.8VDC switches the output on, and applying 4 to 10VDC switches it off. This lets a screen controller sequence supplies over a signal line instead of switching mains with a contactor.
QWhat is the difference between the RSP-150-5 and the RSP-200-5?
Output current, case size, protection scheme and remote control. The RSP-150-5 delivers 30A in a 199 x 99 x 30mm case and includes built-in remote ON/OFF; the RSP-200-5 delivers 40A in a 215 x 115 x 30mm case and lists no remote control function. Both have active PFC and both are fanless.
QDoes the RSP-150-5 need a 115V or 230V selector switch set?
No. The RSP-150-5 accepts a universal 85 to 264VAC input with no selector switch, and also accepts 120 to 370VDC. This removes the most common commissioning error on supplies that use a manual voltage selector, and it means one part number covers both 120V and 230V installations.
QWhat is the efficiency of the RSP-150-5?
Typical efficiency is 87% at the 5V output, measured at 230VAC input and rated load. Across the series efficiency ranges from 81.5% at the 3.3V model up to 90% at the 48V model, so the 5V part sits mid-range rather than at either extreme.
QWhat are the dimensions of the RSP-150-5?
199mm long by 99mm wide by 30mm high, weighing 0.6kg, with 24 units per carton. The 30mm height is the low-profile dimension that lets the unit fit inside a standard 1U LED display cabinet, and this is the smallest case in the RSP family.
QHow do I wire the RSP-150-5 terminal block?
Pin 1 is AC live, pin 2 is AC neutral and pin 3 is frame ground. Pins 4 and 5 are the DC negative output and pins 6 and 7 are the DC positive output. There is no voltage selector to configure, but the CN1 remote control line should be wired deliberately rather than left floating.
QWhy does the RSP-150-5 datasheet limit external output capacitance?
The datasheet recommends that external output capacitance should not exceed 5,000 microfarads on the 3.3V, 5V, 7.5V and 12V models. The reason is the constant-current limiting overload characteristic: a supply that limits current rather than shutting down has to charge whatever capacitance sits on its output, so an unbounded bank turns a normal start-up into an overload event.
QCan the RSP-150-5 be used in a sealed enclosure?
That is the one configuration where the fanless design works against you. Convection cooling relies on hot air rising and escaping, so a sealed box traps the heat with no mechanism to remove it. Ventilated cabinets are strongly preferred, and the datasheet derating curve should be read at the worst-case ambient inside the cabinet.
QWhat is the working temperature range of the RSP-150-5?
Minus 30 to plus 70 degrees Celsius with derating. The datasheet draws separate curves for the 12V to 48V models and for the 3.3V to 7.5V group, and the 5V model is governed by the second curve. Above 2,000 metres, an additional ambient derating of 3.5 degrees Celsius per 1,000 metres applies.
Excelled Display supplies MEAN WELL power supplies alongside the modules, cabinets and control hardware they run with, so the power budget and the screen specification are confirmed together rather than in isolation. For the rest of the chain, see the LED control system collection, the outdoor LED display range and the LED display manufacturing process behind them.
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