MEAN WELL RCP-1000-48C is a rack-mount front-end AC/DC power supply module with a 48 V output rated at 21 A and 1008 W. It uses active PFC and a controlled DC fan, with remote sensing, voltage programming and hot-swap isolation for the matching rack system. This version includes I2C communication.
Product Datasheet
Download MEAN WELL RCP-1000 Datasheet (PDF)
The RCP-1000 section is on PDF pages 1, 2, 3, 4, 5, 6, 19. Refer to the complete mechanical drawings and notes when planning installation.
Model-Specific DC Output
Rated output voltage
48 V.
Rated output current
21 A; load range 0–21 A.
Rated output power
1008 W.
Ripple and noise, maximum
300 mVp-p.
Built-in voltage adjustment
46.3–49.7 V.
Voltage tolerance
±1.0%; includes set-up, line and load regulation.
Line / load regulation
±0.5% / ±0.5%.
Typical efficiency
89% at 230 VAC and rated load.
The current and power limits apply together. Voltage adjustment or programming does not increase the permitted continuous output power; apply the input and temperature derating limits.
Input, Timing and Low-Line Limits
Input voltage
90–264 VAC or 127–370 VDC.
AC frequency
47–63 Hz.
Typical AC input current
11 A at 115 VAC; 5.5 A at 230 VAC.
Input power factor
Built-in active PFC.
Cold-start inrush current
50 A.
Leakage current
Less than 1.1 mA at 230 VAC.
Set-up / rise time
1000 / 60 ms at 230 VAC, full load.
Typical hold-up time
16 ms at 230 VAC, full load.
The input-voltage load curve reaches 100% at 100 VAC and remains there through 264 VAC.
Printed low-line limits for this voltage model: 90 VAC: 907.2 W maximum and 18.9 A maximum. Apply these together with the temperature curve.
Protection and Cooling
Short-circuit / overload protection
105–125% of rated output power; constant-current limiting, with automatic recovery after the fault is removed.
Overvoltage protection
52.8–64.8 V; output shutdown, re-power to recover.
Overtemperature protection
Output shutdown; automatic recovery after the temperature falls.
Cooling
Built-in DC fan with fan-speed control. Keep the fan inlet and connector-end exhaust unobstructed.
Hot-swap isolation
Built-in OR-ing diode supports hot-swap operation in the compatible rack system.
Temperature and Environmental Limits
Working temperature
-20°C to 60°C; subject to the load curve.
Working humidity
20–90% RH, non-condensing.
Storage temperature / humidity
-40°C to +85°C; 10–95% RH, non-condensing.
Temperature coefficient
±0.02%/°C from 0°C to +50°C.
Vibration
10–500 Hz, 2 G, 10-minute cycle; 60 minutes each along X, Y and Z.
The curve permits 100% load from -20°C to +50°C, derating to 60% at +60°C.
Above 2000 m altitude, reduce the allowed ambient temperature by 5°C per 1000 m for these fan-cooled supplies. The general altitude derating note does not replace installation or safety limits.
The efficiency-versus-load graph is for the 48 V model at 230 VAC; the model-specific typical efficiency is listed in the output table.
Remote Sense, Programming and Communication
Remote sense
Up to 0.5 V of load-wiring drop compensation. Connect +S pin 8 and -S pin 9 to the load using a twisted pair; for local operation connect each sense input to the corresponding output.
Remote ON/OFF
Pin 7 to -S pin 9: short = ON; open = OFF.
Voltage programming
90–110% of nominal voltage by external resistors.
Communication
This C-suffix model includes I²C. SDA pin 17, SCL pin 18 and address pins 19/20/21 (A0/A1/A2) are enabled; follow the RCP-1000 communication manual.
R1 connects +S pin 8 to V TRIM pin 13; R2 connects V TRIM pin 13 to -S pin 9. Use resistors rated at least 0.1 W; N.C. means no connection. Maintain the local sense-to-output links shown in the programming diagram.
For output levels 90/92/94/96/98/100% respectively, R1 values are 1.3 MΩ, 1.7 MΩ, 2.4 MΩ, 3.6 MΩ, 7.6 MΩ, N.C.. For output levels 100/102/104/106/108/110% respectively, R2 values are N.C., 345 kΩ, 140 kΩ, 70 kΩ, 36 kΩ, 15 kΩ.
Connector and Signal Assignments
CN501 is Positronic PCIB24W9M400A1; mating reference PCIB24W9F400A1. Pins 1/2/4: +V signal; 3/5/6: -V signal; 7: remote ON/OFF; 8: +S; 9: -S; 10: AC OK; 11: DC OK; 12: CS; 13: V TRIM; 14: T-Alarm; 15: 5V-AUX; 16: GND-AUX; 22: FG; 23: AC/L; 24: AC/N.
AC OK is low at 0–0.5 V when input is at least 82 V ±4 V, and high at 4.5–5.5 V below that threshold. DC OK is low when output is at least 80% ±5% of nominal and high below that threshold. T-Alarm is low within the safe thermal range and high above it. The detailed connector table references these status outputs to the non-isolated -V signal.
The auxiliary output is 4.3–5.3 V at 0.3 A maximum, referenced to GND-AUX pin 16, isolated from the main output and unaffected by remote ON/OFF. Connect CS pins between parallel units to enable current balance. AC OK and DC OK LEDs indicate normal input and output operation.
For this C version only: pins 17/18 are SDA/SCL; pins 19/20/21 are address A0/A1/A2. These communication assignments do not imply an interface in the blank-suffix model.
Mechanical Installation and Matching Equipment
Body dimensions, L × W × H
295 × 127 × 41 mm; 1U module profile.
Catalogue packing reference per unit
1930 g (1.93 kg); not the carton mass.
Mechanical drawing
Physical catalogue page 6; provide clearances for the handle, connector and mounting features beyond the listed body dimensions.
Matching shelf
RCP-1UI / RCP-1UT; separately specified rack equipment. I specifies an AC-inlet shelf; T specifies a terminal-block shelf.
The optional RCP-1U 19-inch shelf accepts three RCP-1000 modules. The catalogue describes approximately 3000 W per fully populated shelf and up to 8000 W across three shelves; actual available power depends on output voltage, populated modules and derating.
The module, rack shelf, control/monitor unit and mating connectors are separate configuration items unless expressly included in the ordered assembly. Use the exact connector reference and the model-specific pin assignment; a shared connector shell does not make different RCP families electrically interchangeable.
The mechanical drawing shows the fan/handle side opposite the electrical connector side; maintain the illustrated insertion, handle and ventilation clearance.
Safety, EMC and Measurement Conditions
Catalogue-listed safety standards
UL 62368-1; CSA C22.2 No.62368-1; TUV BS EN/EN 62368-1; EAC TP TC 004.
Dielectric withstand
Input/output: 3 kVAC; input/FG: 2 kVAC; output/FG: 0.7 kVDC.
Insulation resistance
100 MΩ at 500 VDC, 25°C and 70% RH, for input/output, input/FG and output/FG.
EMC emission classes
BS EN/EN 55032 conducted: Class B; radiated: Class B.
EMC immunity
BS EN/EN 55035 and BS EN/EN 61000-6-2; ESD: 8 kV air and 4 kV contact; surge: 2 kV line-to-line and 4 kV line-to-earth.
MTBF reference
840.8 Khrs minimum, Telcordia SR-332; 107.4 Khrs minimum, MIL-HDBK-217F at 25°C.
General test conditions
230 VAC input, rated load and 25°C ambient, unless otherwise stated.
Ripple measurement
20 MHz bandwidth; 12-inch twisted pair terminated with 0.1 µF and 47 µF capacitors in parallel.
Harmonic-current and flicker requirements are referenced to BS EN/EN 61000-3-2 and 61000-3-3. The EMC test arrangement uses a 720 × 360 × 1 mm metal plate. The power supply is a component for installation in equipment; the completed equipment must be checked for EMC compatibility.
The catalogue lists a five-year warranty. Optional conformal coating is a separately specified configuration; it is not implied by the standard model code.
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