GM4-PD3A

Description

DC-input power supply module for the GM4 family. Accepts a 24 VDC input and provides the GM4 5 VDC rail used to feed I/O and internal logic, rated at 5 VDC, 4 A.

The Polar Energy Assessment:

The GM4-PD3A is the GM4-series power module that lets you run a GM4 main/expansion base from a 24 VDC source instead of AC. The GM4 manual lists PD3A as the DC-input option and specifies the 5 VDC output capacity used to power I/O modules and internal circuitry (5 VDC: 4 A). Use this where AC mains are unavailable or when you prefer a single 24 VDC plant bus; check the total 5 V and any 24 V load budgets in the OEM power section when sizing the system.

Pros

• Lets GM4 systems run from 24 VDC plants without AC supplies.
• OEM-specified 5 V rail capacity (4 A) sized for typical GM4 I/O loads.
• Common spare on surplus and reseller channels, so field replacements are usually available.

Limitations

• Confirm firmware/CPU compatibility and stock before ordering.
• If you need significant 24 VDC load for outputs, verify whether external 24 V feed is still required.

Typical use cases

• Mobile or DC-only control panels, battery-backed remote skids, machines where a 24 VDC plant bus is preferred, or retrofit jobs where AC is undesirable.