MEAN WELL RSP-750-15 is a single-output enclosed AC/DC power supply rated 15 V, 50 A and 750 W. It accepts 90-264 VAC or 127-370 VDC, with active PFC and fan cooling in a 41 mm(1U) enclosure. It provides voltage/current programming, remote sense and remote ON/OFF. Observe model-specific ratings, derating and the required control jumpers.
Product Datasheet
Download MEAN WELL RSP-750 Datasheet (PDF)
The RSP-750 section is on PDF pages 1, 2, 3, 4, 5, 6, 7, 8. Refer to the complete mechanical drawings and notes when planning installation.
Model and Output
| Complete model |
RSP-750-15 |
| Model encoding |
RSP series; 750 output-power family designation; 15 V nominal output. Actual rated power: 750 W. |
| Rated output |
15 V DC; 50 A; 750 W |
| Output current range |
0-50 A |
| Manual voltage adjustment |
13.5-16.5 V via SVR51 |
| Ripple / noise |
150 mVp-p maximum |
| Voltage tolerance / line / load regulation |
±1.0% / ±0.5% / ±0.5% |
| Typical efficiency |
89% |
Unless stated otherwise, values are measured at 230 VAC input, rated load and 25°C ambient. Ripple/noise uses 20 MHz bandwidth and a 12-inch twisted pair with parallel 0.1 µF and 47 µF capacitors. Voltage tolerance includes setup, line and load regulation.
Manual adjustment and remote programming are separate functions. Neither permits exceeding the model-specific ratings or applicable derating limits.
Input and Timing
| Input |
90-264 VAC or 127-370 VDC; 47-63 Hz |
| Typical power factor at full load |
0.97 at 230 VAC; 0.98 at 115 VAC |
| Typical AC input current |
8.2 A at 115 VAC; 3.9 A at 230 VAC |
| Typical inrush / leakage |
25 A at 115 VAC; 40 A at 230 VAC. Leakage: <2.0 mA at 240 VAC. |
| Setup / rise / hold-up |
1000 / 50 ms at full load; typical hold-up 16 ms at both 115 and 230 VAC, at full load. |
| PFC / PWM frequency |
90 / 70 kHz |
Built-in active PFC and active inrush-current limiting are shown in the block diagram.
At 90 VAC / 60 Hz, the published maximum is 675 W and 45 A. The input/load curve rises from 90% at 90 VAC to 100% at 100 VAC, then remains at 100% through 264 VAC. Apply temperature derating as well.
Protection
| Protection functions |
Short circuit, overload, overvoltage and overtemperature |
| Overload |
105-125% of rated output power; constant-current limiting; automatic recovery after fault removal. |
| Overvoltage |
17-20.5 V; output shutdown; re-power on to recover. |
| Overtemperature |
Output shutdown; automatic recovery after temperature falls. |
Overload protection is not a continuous or timed peak-power rating. Overload and overtemperature recovery are automatic; an overvoltage shutdown requires input power to be reapplied.
At light or no load, reducing the PV setting from high to low can trigger floating overvoltage protection. The datasheet recommends switching the supply off, setting PV to its lowest level, then adjusting to the required output.
Operating Conditions
| Temperature and cooling |
-30 to +70°C, subject to derating; built-in DC fan with speed control. |
| Temperature/load curve |
Horizontal mounting: 100% load through +50°C, falling linearly to 50% at +70°C. |
| Humidity / storage |
Operating: 20-90% RH. Storage:-40 to +85°C and 10-95% RH. Both non-condensing. |
| Temperature coefficient |
±0.03%/°C over 0-50°C |
| Vibration |
10-500 Hz, 2 G; 10 min/cycle; 60 min each along X, Y, Z. |
Above 2, 000 m (6, 500 ft), reduce the allowable ambient temperature by 5°C per additional 1, 000 m for this fan-cooled model. These pages do not specify a separate maximum operating altitude.
Keep fan inlets and the airflow path unobstructed. The assigned pages do not give a fan thermostat threshold, fan-stop temperature or numerical external ventilation clearance; do not apply limits from another RSP family.
The efficiency-versus-load plot is for the 48 V model at 230 VAC only; it is not a guaranteed efficiency curve for every voltage model.
Control Functions and Default Connections
Remote sense: connect +S pin 1 to load positive and -S pin 3 to load negative; maximum load-wiring compensation is 0.5 V. Use the complete function diagram for local +S/+VS and -S/-VS connections when remote sensing is not used.
Factory default shorts on CN50 are Remote ON-OFF13 to 12V-AUX14, PV5 toPS6, and PC7 toPO8. Keep the programming pairs shorted when their functions are unused. Missing required shorting connections can leave the supply without output.
Remote ON/OFF: a short between pins 13 and 14 turns output ON; an open circuit turns it OFF. For simultaneous control of multiple supplies, the manual requires each supply’s local +S/+V and -S/-V connections; this instruction does not establish a current-sharing capability.
Voltage programming (PV): use an external 2-5.5 VDC source from PV5 to GND10/11 to program 40-110% of nominal output voltage. Remove only the applicable PV/PS short when using this function and follow page 5. Below 40% the graph is non-linear; an external input below 0.5 V may cause undervoltage protection and require restart. The120% Vout and 10% UVP graph labels are typical markers, not an extension of the specified operating range.
Constant-current programming (PC): use an external 2-5.5 VDC source from PC7 to GND10/11 to set 40-110% of rated current. Follow page 5 and restore the PC7/PO8 short when unused. The graph is non-linear below 40%; its 115% typical marker is not an allowed operating extension.
DC_OK is an open-collector output on pin 9, referenced to GND10/11: 0-1 V indicates ON and 3.3-5.6 V indicates OFF. For external TTL sinking, maximum sink current is 10 mA and maximum external voltage is 5.6 V.
Auxiliary output is 12 V ±10% (10.8-13.2 V), maximum 0.1 A, from pin 14 to isolated G-AUX12. It is not controlled by remote ON/OFF. Do not interchange isolated auxiliary return with the main-output GND.
These RSP-750 pages do not specify active current-sharing, a parallel-unit limit or an OTP warning output. Do not transfer those functions from other families.
CN50 Pin Assignment
| 1 / +S |
Positive remote sense; connect to load positive |
| 2 / +VS |
Positive output signal; local pairing with +S for programming configurations |
| 3 / -S |
Negative remote sense; connect to load negative |
| 4 / -VS |
Negative output signal; use the negative local pairing shown in the function diagrams |
| 5 / PV |
External output-voltage programming input, referenced to pins 10/11 (GND) |
| 6 / PS |
Output-voltage programming reference; short to pin 5 when programming is not used |
| 7 / PC |
External constant-current programming input |
| 8 / PO |
Current-programming reference; short to pin 7 when programming is not used |
| 9 / DC_OK |
Open-collector output-status signal, referenced to pins 10/11 |
| 10, 11 / GND |
Connected to -V; return for DC_OK and programming |
| 12 / G-AUX |
Isolated auxiliary-output return |
| 13 / Remote ON-OFF |
Short to pin 14 for ON; open for OFF |
| 14 / 12V-AUX |
10.8-13.2 V, up to 0.1 A, referenced to pin 12; independent of remote ON/OFF |
Pin numbers refer to the CN50 orientation in the linked mechanical drawing. Main output current uses the power terminals, not signal or sense pins.
Mounting and Connections
| Dimensions / case |
250 × 127 × 41 mm (L × W × H), 1U; case 212A; drawing tolerance ±1 mm. |
| Side mounting, hole group 1 |
3-M4 on each side; maximum penetration6 mm; recommended torque7-11 kgf·cm. |
| Base mounting, hole group 2 |
3-M4; maximum penetration4 mm; recommended torque7-11 kgf·cm. |
| AC input TB1 |
Pin1: AC/N; pin 2: AC/L; pin 3: FG protective earth. Maximum terminal torque18 kgf·cm. |
| DC output terminals |
Two M5 output connections,+V and-V; maximum terminal torque10 kgf·cm. |
| CN50 onboard header |
HRS DF11-14DP-2DS or equivalent |
| Mating housing |
HRS DF11-14DS or equivalent |
| Contacts as printed |
HRS DF11-**SC or equivalent |
Use the full hole pattern on PDF page 7; the rear fan airflow is shown toward the terminal end. M4 mounting depths are chassis penetration limits, not overall screw length. Allow for mounting-material thickness and do not confuse mounting-screw torque with AC/DC terminal torque.
CN50 has 14 positions. The contact reference contains **; the exact wire/contact variant is not specified here. Confirm the appropriate complete contact before ordering. Apart from the expressly stated factory shorting connector, these pages do not establish that a loose mating housing, contacts or cable kit is supplied. No separate bracket or terminal-cover order code is given.
Conformal coating is optional. The unsuffixed model number does not confirm that coating is fitted, and these pages do not define a coating order suffix. No numerical wire gauge or external ventilation-clearance requirement is specified here.
Safety, EMC and Reliability
| Safety approvals listed |
UL62368-1; CSA C22.2 No.62368-1; TUV BS EN/EN62368-1; CCC GB4943.1; BSMI CNS15598-1; AS/NZS62368.1; EAC TP TC004; BIS IS13252(Part1): 2010 / IEC60950-1: 2005 |
| Withstand / insulation |
Input-output3 kVAC; input-FG2 kVAC; output-FG0.5 kVAC.100 MΩ at 500 VDC, 25°C, 70% RH for all three paths. |
| EMC emission |
Conducted Class B; radiated Class B under BS EN/EN55032(CISPR32), CNS15936. Harmonics: BS EN/EN61000-3-2; flicker: BS EN/EN61000-3-3. |
| Immunity standards |
BS EN/EN55024, BS EN/EN61000-6-2, CCC GB17625.1, GB/T9254 |
| Minimum MTBF |
336.9K hours, Telcordia SR-332(Bellcore); 109.1K hours, MIL-HDBK-217F at 25°C. |
The power supply is a component: final equipment must be checked again for EMC compliance. The published EMC setup uses a 720 ×360 mm metal plate, 1 mm thick.
The MTBF results are reliability-model references, not guaranteed service life. The manufacturer datasheet lists a 5-year warranty, subject to applicable manufacturer terms.
The datasheet notes that Taiwan-sourced products do not carry the BIS logo. Confirm the actual unit and applicable certificate with MEAN WELL when this marking is required.
Immunity tests: BS EN/EN61000-4-2; level 3, 8 kV air; level 2, 4 kV contact; BS EN/EN61000-4-3; level 3; BS EN/EN61000-4-4; level 3; BS EN/EN61000-4-5; level 4, 4 kV line-earth; level 3, 2 kV line-line; BS EN/EN61000-4-6; level 3; BS EN/EN61000-4-8; level 4; BS EN/EN61000-4-11; >95% dip for 0.5 periods, 30% dip for 25 periods; >95% interruptions for 250 periods.
Weight and Datasheet Scope
| Per-unit catalog PACKING reference |
1640 g (1.64 kg) |
| Published packing |
1.64 kg; 6 pieces / 10.8 kg / 1.1 CUFT |
| Specification revision |
2025-01-10 |
The per-unit catalog reference is not a measured net mass or a customer shipment weight; the carton total is not the single-product mass.
This RSP-750 section occupies PDF pages 1-8. Consult its complete diagrams before wiring or programming. The catalog lists factory automation, test/measurement, laser-related equipment, burn-in and RF applications; each installation still requires the stated operating limits.
