Description
GM7U-format transistor module: 24 DC inputs and 16 NPN (sink) transistor outputs, 24 VDC logic; U-series spare for GM7U racks.
The Polar Energy Assessment:
The G7M-DT40U (N) is the U-series version of the DT40 family, offering 24 inputs and 16 NPN sinking transistor outputs packaged for GM7U compatibility. NPN/sink outputs are widely used in industrial installations and simplify integration where sensors and actuators expect sinking outputs. Choose this module for GM7U retrofit or spare swaps where high-cycle solid-state switching and U-series form factor are required.
Pros
- NPN sink outputs match common industrial wiring patterns.
- High-density solid-state switching reduces maintenance needs.
- U-series form factor simplifies spare management on GM7U racks.
Limitations
- Not suited for direct AC mains switching; relays required for mains loads.
Typical use cases
- GM7U retrofit projects, packaging machines, conveyors, and systems where sinking outputs are standard.

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