Product Details
The Siemens PAD-4-MB is the factory replacement control board used in all PAD-4 distributed power supplies and NAC expander kits. Swapping in this board restores the PAD-4’s four supervised output circuits, two trigger inputs, on-board battery charger, strobe-sync generator, ANSI Temporal coding, status LEDs, and dual trouble relays without replacing the entire cabinet or power supply.