Selec RPS480 DIN Rail Mount 480W Power Supply
Selec RPS480-24-CU Industrial Power Supply – 24V DC, 20A, 480W, High-Efficiency DIN-Rail SMPS
A heavy-duty 480W DIN-rail SMPS delivering 24V/20A output, 90–264VAC universal input, up to 93.5% efficiency, UL508 approval, DC-OK monitoring relay, and full protection against overload, OVP, OTP & short-circuit.
The Selec RPS480-24-CU is a premium 480W industrial SMPS engineered for PLC systems, DCS, machine automation, instrumentation, and high-power 24V DC loads. With 20A output capability, ultra-high efficiency (up to 93.5%), global AC/DC input compatibility, and comprehensive electronic protection, it ensures long-term reliability in demanding environments.
KEY FEATURES
480W Output – 24V DC, 20A continuous
Universal 90–264 VAC / 127–370 VDC input
Efficiency up to 93.5% at 230 VAC
Power factor >0.95 @ full load
Ripple <1% of Vout
Output adjust: 24–28V
Overload protection (110–140%), hiccup auto-recovery
Over-temperature shutdown at ~120°C (restart <90°C)
Overvoltage protection: VDC ± 0.5 V, latched
Short circuit protection (auto-recovery)
DC-OK monitoring relay
Natural convection cooling
−25°C to +70°C operation (derating above 50°C)
UL508 approved (E522848)
Meets CISPR32 Class A/B, IEC61000-4 EMC immunity
TECHNICAL SPECIFICATIONS
1. Output Specifications
| Parameter | Value |
|---|---|
| Nominal Output Voltage | 24V DC |
| Rated Current | 20A |
| Rated Power | 480W |
| Current Range | 0–20A |
| Ripple & Noise | <1% of Vote |
| Voltage Adjustment | 24–28V |
| Voltage Tolerance | ±1% |
| Line Regulation | ±1% |
| Load Regulation | ±1% |
| Turn-on Time | <2 sec @ full load |
| Hold-up Time | >20 ms @24V / >12 ms @28V (115/230VAC) |
| Rise Time | <100 ms |
2. Input Specifications
| Parameter | Value |
|---|---|
| Voltage Range | 90–264 VAC / 127–370 VDC |
| Frequency | 50 / 60 Hz |
| AC Current | 4.8A at 115VAC; 2.4A at 230VAC |
| Power Factor | >0.95 @ full load |
| Efficiency | Up to 93.5% at 230 VAC |
| Inrush Current | <60A at 264VAC (cold start, 25°C) |
| Leakage Current | <1 mA |
3. Protection Features
| Protection | Description |
|---|---|
| Overload | 110–140% rated current, hiccup mode, auto-recovery |
| Over-voltage | 31 VDC ±0.5 V, latched (requires AC recycle) |
| Short-Circuit | Hiccup, auto-recovery |
| Over-Temperature | Shutdown at ~120°C; restart <90°C |
4. DC-OK Relay Output
| Condition | Relay State |
|---|---|
| Closes | 23.0V (typ.) |
| Opens | 22.5V (typ.) |
| Contact Rating | 30VDC 1A; 60VDC 0.5A; 125VAC 0.5A |
5. Environmental Specifications
| Parameter | Value |
|---|---|
| Operating Temp | −25°C to +70°C (derating above 50°C) |
| Startup | Guaranteed down to −25°C (with ripple >10%) |
| Storage Temp | −40°C to +85°C |
| Humidity | 5–95% RH non-condensing |
| Vibration | 10–500 Hz, 2G, 60 min/axis |
| Altitude | 2000 m |
| Cooling | Natural convection |
6. Safety & EMC Compliance
| Category | Standard | Level |
|---|---|---|
| Conducted Emission | CISPR32 | Class B |
| Radiated Emission | CISPR32 | Class A |
| ESD | IEC61000-4-2 | Level 4, Criteria A |
| Radiated Susceptibility | IEC61000-4-3 | Level 3, Criteria B |
| EFT/Burst | IEC61000-4-4 | Level 3, Criteria A |
| Surge | IEC61000-4-5 | Level 3, Criteria A |
| Conducted Susceptibility | IEC61000-4-6 | Level 3, Criteria B |
| Voltage Dips & Interruptions | IEC61000-4-11 | Criteria A & B |
| Safety | UL508 (E522848), IEC 62368-1 design |
7. Mechanical Specifications
| Parameter | Value |
|---|---|
| Dimensions | 60 × 154 × 158.55 mm |
| Weight | 1050 g |
| Housing Material | Plastic |
| DIN Rail | 35 mm |
| Input Connector | GOOSVN GS007S-7.5, 0.5 Nm |
| Output Connector | GOOSVN GS007S-5.08, 0.5 Nm |
8. Terminal Connections
L, N → AC Input
+V, –V → 24V DC Output
PE → Protective Earth
DC-OK signal relay terminals
9. Derating Curves
Full 100% load from −25°C to +50°C
Linear derating to 50% load at 70°C
Input voltage derating below 100VAC → 90% at 90VAC
APPLICATIONS
PLC, SCADA, DCS controllers
Robotics, conveyors, packaging machines
High-power 24V DC field loads
Industrial sensors, solenoids, valves
Building automation systems
CNC & machine control panels
Large instrumentation networks
WHAT’S IN THE BOX
Selec RPS480-24-CU SMPS
DIN Rail Mounting Clip
User documentation
FAQS
Q1. What is the output rating?
24V DC, 20A, 480W.
Q2. Does it include DC-OK status monitoring?
Yes—the relay closes at 23.0V and opens at 22.5V.
Q3. What protections are included?
Overload, over-voltage, short-circuit, over-temperature.
Q4. Is it UL certified?
Yes—UL508 approved (E522848).
Q5. Can it be used at high temperatures?
Yes—operation up to 70°C with derating above 50°C.