Bachmann NT255 00013251-00 Power Supply Module

Overview

The NT255 is a high-efficiency power supply module by Bachmann electronic GmbH. It delivers stable 24 V DC output for M1 automation system modules and connected field devices. Designed for industrial environments, the NT255 ensures reliable operation even under fluctuating input conditions. It supports parallel operation for redundancy, improving system reliability. The module integrates advanced protection and monitoring features, making it ideal for demanding automation applications.

Technical Specifications

• Input Voltage Range: 85 V AC to 264 V AC

• Input Frequency: 47 Hz to 63 Hz

• DC Output Voltage: 24 V DC ±1%

• Output Current: Up to 5 A

• Peak Output Power: 55 W

• Efficiency: > 90%

• Power Factor Correction: Active PFC included

• Hold-Up Time: > 20 ms at full load

• Galvanic Isolation: Input/ground and input/system

• Reverse Polarity Protection: Electronic, built-in

• Status Indicators: Two LEDs for supply failures and internal errors

• Monitored Voltages: Input and output voltages monitored

• Powerfail Signal: Provides state information to CPU module

Mechanical and Environmental Design

• Form Factor: Standard M1 module size

• Mounting: DIN rail compatible

• Cooling: Convection-cooled, no fan required

• Operating Temperature: −25°C to +60°C

• Storage Temperature: −40°C to +85°C

• Humidity: 5% to 95%, non-condensing

• Vibration Resistance: Complies with IEC 60068-2-6