Honeywell 51404174-275 MU-TMCN02 Power Supply Module

Product Overview

The Honeywell 51404174-275 MU-TMCN02 supplies regulated DC power to system components. This module converts AC input into stable 24 VDC output for I/O devices. It distributes power to modules within the Series C and TDC 3000 chassis. The unit ensures consistent voltage delivery across the entire system.

Technical Specifications

Physical Dimensions and Mounting

This module measures 125 mm in height, 45 mm in width, and 160 mm in depth. The unit weighs approximately 0.85 kg. It mounts directly onto a standard DIN rail inside the cabinet. The front panel includes LED indicators for input and output status. These LEDs show power-good and fault conditions clearly.

Electrical Interface and Connectivity

A 3-position terminal block accepts AC input from the main supply. The module delivers DC output through a 4-position terminal block. The output terminals provide both +24 VDC and common return connections. The module also includes a chassis ground terminal for safety earthing. This grounding connection reduces electrical noise interference effectively. External devices like I/O modules, field transmitters, and indicators draw power from this output.

Performance and Protection Features

The 51404174-275 MU-TMCN02 delivers 240 watts of continuous output power. It maintains voltage regulation within ±2% under varying load conditions. The module incorporates overvoltage protection that trips at 28 VDC. It also includes foldback current limiting to prevent output short-circuit damage. Furthermore, the module provides thermal shutdown protection against excessive temperatures. The hold-up time of 20 milliseconds allows graceful power failure handling.

Installation and System Integration

You can install this power supply in any designated slot within the chassis. The backplane distributes the DC output to all adjacent modules. Always verify the input voltage selector switch matches your mains supply. Connect the AC input wiring according to the terminal markings. For redundant power configurations, install two modules with diode isolation. Ensure adequate airflow around the module for proper heat dissipation.

Environmental Compliance and Certification

This module carries CE marking and UL 508 recognition for industrial use. It also complies with RoHS and WEEE environmental directives. The PCB coating protects against moisture and dust ingress. This coating ensures reliable operation in typical control rooms.