Schneider Electric

140CPS11420C

Modicon Quantum – 5.1 VDC Backplane Power Supply

1. General Information

• Manufacturer: Schneider Electric

• Part Number: 140CPS11420C

• Series: Modicon Quantum PLC

• Type: Rack-mount main backplane power supply (standalone / summable)

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

• Application: Supplies 5.1 VDC to CPU, I/O, and backplane logic; not a 24 V auxiliary supply.

• Coating: Conformal coated (Humiseal 1A33) for harsh environments.

2. Electrical Specifications

Input

• Voltage Range: 115 / 230 VAC (dual range)

  • 93–132 VAC (115 V range)

  • 170–276 VAC (230 V range)

• Frequency: 47 Hz to 63 Hz

• Input Current:

  • 115 VAC: 1.3 A

  • 230 VAC: 0.75 A

• Inrush Current:

  • 115 VAC: 38 A

  • 230 VAC: 19 A

• Fuse: 2 A slow-blow (external)

• Rated Power: 130 VA

Output

• Voltage: 5.1 VDC ±1% (regulated)

• Current (@60°C):

  • Standalone: 11 A continuous

  • Summable (2 units): 20 A continuous

• Power Dissipation: 6 + (1.5 × Iout) W (Iout in A)

• Ripple & Noise: Low ripple, < 50 mV typical

• Harmonic Distortion: ≤ 10% of fundamental RMS

Protection

• Overvoltage protection (OVP)

• Overload protection (OLP)

• Short-circuit protection (SCP)

• Overcurrent protection (OCP)

• Thermal shutdown

3. Environmental & Mechanical

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

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

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

• Protection Class: IP20 (indoor use)

• Mounting: 1 slot in Modicon Quantum backplane

• Dimensions (H × W × D): 103.9 × 40.3 × 250 mm

• Weight: Approx. 0.65 kg

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

4. Key Features

1. 5.1 VDC main backplane supply for Quantum CPU & I/O logic.

2. Universal 115/230 VAC input for global use.

3. Two operating modes:

   • Standalone: ≤ 11 A load

   • Summable: 2× units parallel, up to 20 A.

4. Green “PWR OK” LED status indication.

5. 1 NC alarm relay: 6 A / 220 V, for power fault signalling.

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

5. Certifications

• CE

• UL 508

• CUL / CSA

• FM Class 1 Div 2

• RoHS compliant

6. Ordering Information

• 140CPS11420C: 5.1 VDC, 11 A / 20 A, conformal coated (Humiseal 1A33)

• 140CPS11420: Non-coated version (standard)