Bachmann NT255 Power Supply Module

Overview

• Power supply module
• Designed for industrial automation systems
• Provides reliable and efficient power to CPUs and backplane-supplied modules

Technical Specifications

Power Supply:

• Supply voltage: 18 to 34 VDC
• Output power: 45 W (55 W)
• Buffer time: 18 ms
• Monitoring: Supply voltage monitoring, power-fail signal for processor module

Input:

• Voltage range: 18 to 34 VDC
• Input voltage, peak value: +40 V at t < 1 s /min
• Power consumption: Max. 68 W
• Reverse polarity protection: Electronic
• Starting current limitation: Max. 8 A after 5 ms
• Fuse: SMD wire fuse 7 A at device defect
• Input voltage monitoring: Yes, for power fail message

Output:

• Output power: 45 W (55 W)
• Output voltage / output current: +5 V/ 6 A (8 A peak), +15 V / 0.5 A, -15 V / 0.5 A
• Power-fail bypass: 18 ms, power-fail message after 3 ms

Monitoring:

• State indication: Power-fail on processor
• State display LEDs: Power, Error, Ready
• Galvanic isolation: 500 V (input / system), 100 V (input / ground)

Approvals / Certificates:

• General: CE, UL/cUL, CCC
• Marine: GL/DNV, LR, ABS, BV

Environmental Conditions:

• Operating temperature: -30 to +60 °C
• Relative air humidity (operation): 5 to 95 % without condensation, 5 to 95 % with condensation
• Storage temperature: -40 to +85 °C
• Relative air humidity (storage): 5 to 95 % without condensation, 5 to 95 % with condensation

Order codes:

• NT255 00013251-00: Power supply 45W (55W); 24V; 5V 6A; ±15V 0.5A
• NT255 CC 00016158-00: Like NT255; ColdClimate