Selec RPS120 DIN Rail Mount 120W Power Supply
Selec RPS120-24-CU Industrial Power Supply – 24V DC, 5A, 120W, DIN Rail UL508 SMPS
A high-performance 120W DIN-rail industrial SMPS with 24V / 5A regulated output, 90–264VAC universal input, up to 89% efficiency, comprehensive overload/OVP/SCP/OTP protections, UL508 approval, and >220k hrs MTBF.
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The Selec RPS120-24-CU is a robust 120W industrial-grade SMPS designed for demanding automation environments. With 24V / 5A regulated output, a universal AC/DC input range, up to 89% efficiency, and complete electronic protections, it is ideal for PLCs, SCADA, relays, sensors, and machine control panels.
KEY FEATURES
120W, 24V DC, 5A output
Universal 90–264 VAC / 127–370 VDC input
Efficiency up to 89%
Overload, Overvoltage, Over-Temperature & Short-Circuit protection
Natural convection cooling
UL508 approved (E522848)
Low ripple & noise <1%
Adjustable output: 24–28V
−25°C to +70°C operating range (derating above 50°C)
MTBF >220,000 hrs @ 25°C (MIL-HDBK-217F)
TECHNICAL SPECIFICATIONS
1. Output Specifications
| Parameter | Value |
|---|---|
| Nominal Output Voltage | 24V DC |
| Rated Current | 5A |
| Rated Power | 120W |
| Current Range | 0–5A |
| Ripple & Noise | <1% of Vote |
| Voltage Adjustment Range | 24–28V |
| Voltage Tolerance | ±1% |
| Line Regulation | ±1% |
| Load Regulation | ±1% |
| Turn-on Time | <1 sec @ 230 VAC; 1 <3 sec @ 115 VAC |
| Hold-up Time | ≥60 ms at 230 VAC; ≥15 ms at 115 VAC |
| Rise Time | <100 ms |
2. Input Specifications
| Parameter | Value |
|---|---|
| Voltage Range | 90–264 VAC / 127–370 VDC |
| Frequency | 50 / 60 Hz |
| Efficiency | Up to 89% |
| AC Current | 1.5A @ 230VAC; 2.2A @ 115VAC |
| Inrush Current | <48A @ 264VAC, 25°C |
| Leakage Current | <1 mA @ 264 VAC |
3. Protection Features
| Protection | Description |
|---|---|
| Overload | >110% rated output, hiccup mode, auto-recovery |
| Overvoltage | 28.5–33.5 VDC (latched type; recycle AC to recover) |
| Short-Circuit | Hiccup mode; auto-recovery |
| Over-Temperature | Shutdown at ~120°C; restart below ~90°C after AC recycle |
4. Environmental Conditions
| Parameter | Value |
|---|---|
| Operating Temperature | −25°C to +70°C (derate above 50°C) |
| Storage Temperature | −40°C to +85°C |
| Humidity | 5–95% RH non-condensing |
| Altitude | 2000 m |
| Cooling | Natural convection |
| Vibration | 10–500 Hz, 2G, 60 min on X/Y/Z axes |
5. Safety & EMC Compliance
| Category | Standard | Level |
|---|---|---|
| Conducted Emission | CISPR32 | Class A |
| Radiated Emission | CISPR32 | Class A |
| ESD | IEC61000-4-2 | Level 4 |
| EFT/Burst | IEC61000-4-4 | Level 3 |
| Surge | IEC61000-4-5 | Level 3 |
| Conducted Susceptibility | IEC61000-4-6 | Level 3 |
| Radiated Susceptibility | IEC61000-4-3 | Level 3 |
| Voltage Dips & Interruptions | IEC61000-4-11 | Criteria A/B |
| Safety Approval | UL508 (E522848) | |
| Design Standard | IEC 62368-1 |
6. Mechanical Details
| Parameter | Value |
|---|---|
| Dimensions | 43 × 109.8 × 102.7 mm |
| Weight | 350 g |
| DIN Rail | 35 mm standard |
| Input Connector | GOOSVN GS007S-7.5 (torque 0.5 Nm) |
| Output Connector | GOOSVN GS007S-5.08 (torque 0.5 Nm) |
7. Terminal Connections
L, N → AC Input
+V, –V → 24V DC Output
PE → Protective Earth
8. Derating Curve
100% load available from −25°C to +50°C
Linear derating to 50% load at +70°C
APPLICATIONS
PLCs, HMIs, SCADA panels
Sensors, transmitters & field instruments
Industrial machinery & assembly lines
Robotics & motion control
Access control, security systems
Building automation
Compact MCC & control cabinets
WHAT’S IN THE BOX
Selec RPS120-24-CU Power Supply
DIN Rail Mounting Clip
Instruction leaflet
FAQS
Q1. What is the output rating?
24V DC, 5A continuous (120W).
Q2. Does this model support DC input?
Yes—127–370 VDC input is supported.
Q3. What protections are provided?
Overload, short circuit, over-temperature, and overvoltage.
Q4. Is it UL approved?
Yes—UL508 certified (E522848).
Q5. Can it operate in high temperatures?
Yes—up to +70°C with derating above 50°C.