Schneider Electric

140CPS21100C

Modicon Quantum – 5.1 VDC Backplane Power Supply

1. General Information

• Manufacturer: Schneider Electric

• Part Number: 140CPS21100C

• Series: Modicon Quantum PLC

• Type: Rack‑mount backplane power supply (standalone only; non‑redundant)

• Input: 24 VDC nominal (wide range)

• Output: 5.1 VDC (logic power for Quantum backplane)

• Application: Low/medium power Quantum racks; supplies 5.1 VDC to CPU, I/O, backplane logic.

• Coating: Conformal coated (Humiseal 1A33) for harsh environments (C suffix = coated)

2. Electrical Specifications

Input (DC)

• Voltage: 20–30 VDC (nominal 24 VDC)

• Input Current: 1.6 A max

• Inrush Current: 30 A max

• Hold‑up Time:

  • 1 ms @ 20 VDC

  • 20 ms @ 25 VDC

• Fuse: 2.5 A slow‑blow (external)

Output

• Voltage: 5.1 VDC ±1% (regulated)

• Current (@60°C): 0.3–3 A continuous (standalone only)

• Ripple & Noise: < 50 mV typical

• Protection: Overvoltage, Overload, Short‑circuit, Thermal shutdown (all internal)

Signaling

• Local Indication: Green “PWR OK” LED

• Alarm Contact: None (no relay output)

3. Environmental & Mechanical

• Operating Temperature: 0 °C to +60 °C

• Storage Temperature: −40 °C to +85 °C

• Relative Humidity: 95% RH max, non‑condensing

• Altitude: Up to 5,000 m

• Protection Class: IP20 (indoor use)

• Mounting: 1 slot in Modicon Quantum backplane

• Weight: Approx. 0.65 kg

• Conformal Coating: Yes (Humiseal 1A33) – C suffix = coated

4. Key Features

1. 24 VDC wide‑range input: 20–30 VDC, fits standard industrial 24 V systems.

2. 3 A low‑power 5.1 VDC output: for smaller Quantum racks (non‑redundant).

3. Conformal coated for dust, moisture & harsh industrial environments.

4. Compact 1‑slot design: easy integration into any Quantum backplane.

5. Green “PWR OK” LED: simple local status indication.

6. Built‑in fault protection: OVP / OLP / SCP / thermal shutdown.

7. High efficiency: typical ≥ 85%.

5. Certifications

• CE

• UL 508

• CUL / CSA C22.2 No 142

• FM Class 1 Div 2

• RoHS compliant

6. Ordering Notes

• 140CPS21100C: 24 VDC input, 3 A standalone, conformal coated, no alarm contact.

• 140CPS21100: Non‑coated (standard DC24V 3A version).

• Not redundant: cannot be used in 1+1 pairs (use 140CPS124xx for redundancy).

• Obsolete: Replaced by BMXCPS3020 (M340 platform).