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TM172OBM42R

The Schneider Electric TM172OBM42R is a digital output module for the Modicon TM171 Logic Controller (also known as Modicon M200 series). This is an expansion I/O module, not a standalone controller. It is designed to add additional relay outputs to a TM171 base controller unit, extending its capacity to control actuators, contactors, and other field devices.

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Specifications Parameter Specification Product Type Expansion Digital Output Module (Relay) System Compatibility Modicon TM171 / M200 Logic Controller Number of Channels 4 relay outputs Output Type Electromechanical Relay (NO contact) Contact Rating 2 A @ 30V DC / 250V AC (per channel) Electrical Life Typically 100,000 operations at rated load Switching Frequency Limited by mechanical life (recommended for low-frequency switching) Isolation 1500V AC between field and system Status Indication LED indicator per channel Connection Removable screw terminal block Mounting Directly attaches to the side of a compatible TM171 base controller (e.g., TM172***) via a dedicated connector. Power Supply Powered from the base controller (no separate supply required). Dimensions Compact expansion block (approx. 45mm width).