Fuji NP1S-42 Power Supply Module | 34.2W

The Fuji NP1S-42 converts AC line voltage into stable DC power. This module supplies energy to the entire NP1 series system. It feeds the backplane with clean 5V and 24V outputs. A built‑in hold‑up capacitor prevents momentary shutdowns during line dips.

Complete Technical Specifications

Parameter	Specification
Dimensions (W x H x D)	68 mm x 110 mm x 75 mm
Weight	0.48 kg
Input Voltage Range	100–240V AC, 50/60 Hz
Input Current	1.2 A maximum
Output Voltage 1	5V DC / 3 A
Output Voltage 2	24V DC / 0.8 A
Total Output Power	34.2 W
Internal Energy Storage	1500 µF (primary side)
Efficiency	82% typical
Isolation Voltage	3000V AC input to output
Protection Features	Overcurrent, overvoltage, short circuit

Physical Layout and Connection Points

The Fuji NP1S-42 weighs 0.48 kilograms for secure mounting. Its compact 68 mm width saves valuable cabinet space. A three‑terminal connector accepts L, N, and ground wires. Two separate output headers provide 5V and 24V distribution. The front panel includes green LED indicators for each output. An internal 1500 µF capacitor stores energy for 20 milliseconds of hold‑up time.

Installation and Wiring Guidelines

Mount this supply module to the leftmost slot of the base board. Then connect AC input through a 2 A circuit breaker. Use twisted pair cables for the DC output lines. The module automatically starts when you apply power. Wait for both LED indicators to turn green. After that, check the output voltages with a multimeter.

Performance and Thermal Characteristics

This power supply delivers 3 amperes on the 5V rail. The 24V rail provides 0.8 amperes for field devices. Therefore, calculate your total load before adding modules. The unit runs cool at 82% efficiency. Consequently, it requires no external fan for ventilation. Keep the ambient temperature below 55°C for reliable operation.

Compatibility and System Integration

The Fuji NP1S-42 works with any NP1 series base board. It powers CPU, I/O, and special function modules simultaneously. Do not connect external loads directly to the 5V output. Use the 24V rail for sensors or small relays instead. For larger systems, add a second power supply module.