OPS2x4-200 Open Frame Power Supply
Selec OPS2x4-200-24 Open Frame Power Supply – 24V DC, 200W, Medical BF Approved
High-density 4"×2" open-frame SMPS delivering 24V/200W with forced-air cooling, 130W convection, medical BF safety approval, low leakage current, high efficiency up to 93%, and wide −40°C to +70°C operation.
Selec OPS2x4-200-24 is a high-performance 24V open-frame power supply designed for medical BF applications, industrial embedded systems, IT/AV devices, and compact controllers. It provides 130W convection and up to 200W with forced air, with wide AC input, reinforced isolation, medical-grade leakage limits, and high efficiency up to 93%.
KEY FEATURES
24V DC output, 5.42A convection / 8.34A forced air
200W forced air, 130W natural convection
Ultra-compact 4” × 2” × 1.16” footprint
High efficiency up to 93% at 230 VAC
Medical (BF) approval, 2 × MOPP isolation
Leakage current <300 µA, Touch current <100 µA
No-load power consumption < 0.5W
Operating range: −40°C to +70°C (derating above 50°C)
Full protection: OVP (latched), OLP, SCP, OTP
Fan output: 12V / 0.5A
MTBF >330,000 hours
Class II option available
TECHNICAL SPECIFICATIONS
1. Output Specifications
| Parameter | Value |
|---|---|
| Nominal Voltage | 24V DC |
| Rated Current (Convection) | 5.42A |
| Rated Current (Forced Air) | 8.34A |
| Power (Convection) | 130W |
| Power (Forced Air) | 200W |
| Ripple & Noise | <1% of Vote |
| Set Point Accuracy | 24.1V ± 3% |
| Line Regulation | ±1% |
| Load Regulation | ±0.5% |
| Turn-On Time | <2 sec at full load |
| Hold-Up Time | >20 ms (convection), >10 ms (full load) |
| Rise Time | <100 ms |
| Transient Response | 5% max excursion; recovery < 5 ms |
| Fan Output | 12V / 0.5A |
2. Input Specifications
| Parameter | Value |
|---|---|
| Input Voltage | 90–264 VAC / 127–370 VDC |
| Frequency | 47–63 Hz |
| Efficiency at 230 VAC | Up to 93% |
| AC Current | 2.0A at 115VAC; 1.1A at 230VAC |
| Power Factor | >0.93 @ full load |
| Inrush Current | <60A at 264VAC (cold start) |
| Leakage Current | <300 µA |
| Touch Current | <100 µA |
| No-Load Power | <0.5W |
3. Protection Features
| Protection | Description |
|---|---|
| Overload | 110–140% rated; hiccup; auto-recovery |
| Overvoltage | 27–31 V, latched; AC recycle required |
| Short-Circuit | Hiccup mode; auto-recovery |
| Over-Temperature | Shutdown at 120°C; restart <90°C with AC recycle |
4. Environmental Specifications
| Parameter | Value |
|---|---|
| Operating Temp | −40°C to +70°C (derating >50°C) |
| Storage Temp | −40°C to +85°C |
| Cooling | Natural convection / Forced air (≥13 CFM) |
| Humidity | 5–95% RH non-condensing |
| Altitude | 2000 m |
| Vibration | 10–500 Hz, 2G, 60 min/axis |
5. Safety & EMC Compliance
| Category | Standard | Level |
|---|---|---|
| Conducted Emission | CISPR32 | Class B |
| Radiated Emission | CISPR32 | Class A |
| ESD | IEC61000-4-2 | Level 4, Criteria A |
| 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 |
| Radiated Susceptibility | IEC61000-4-3 | Level 3, Criteria B |
| Magnetic Field | IEC61000-4-8 | Level 3, Criteria A |
| Voltage Dips | IEC61000-4-11 | Criteria A & B |
| Safety | IEC/EN/UL 62368-1, IEC/EN 60601-1 (Medical BF), IEC/EN 61558 |
6. Mechanical & Connector Details
Connectors
| Ref | Description | Connector | Pins | Function |
|---|---|---|---|---|
| J1 | AC Input | Tyco 640445-3 | 1 | AC Line |
| 2 | NC | |||
| 3 | AC Neutral | |||
| J2 | DC Output | Tyco 640445-6 | 1–3 | V+ |
| 4–6 | V− | |||
| J3 | Fan Output | Molex 22-04-1021 | 1 | +12V |
| 2 | GND | |||
| Earth | Mounting holes with Earth symbol | — | — | Must be grounded |
Mechanical Summary
PCB stand-offs: dia ≤6 mm, height ≥7 mm
Recommended fan: 40 × 40 × 28 mm
Airflow direction shown in page 2 diagram
7. Derating Curves
Power vs Ambient Temperature
130W convection up to 50°C
200W forced air up to ~50°C
Linear derating to 50% load at 70°C
Power vs Input Voltage
100% output from 100–305 VAC
Slight derating near VAC
APPLICATIONS
Medical electronics (BF rated)
Embedded industrial controllers
IoT & automation modules
IT/AV equipment
Instrumentation & panel electronics
Robotics, drives, compact machine control
WHAT’S IN THE BOX
Selec OPS2x4-200-24 Power Supply
Connector documentation
Mounting instructions
FAQS
Q1. What is the output capacity?
24V DC, 5.42A convection or 8.34A forced air (200W).
Q2. Can it be used in medical devices?
Yes—BF rated with 2× MOPP isolation.
Q3. Does it support DC input?
Yes—127–370 VDC.
Q4. Does it require a fan?
Only for a full 200W; otherwise, 130W convection is supported.
Q5. What is leakage current?
<300 µA (medical compliant).