Siemens PAD-5-MB Addressable Power Supply Main Board

The Siemens PAD-5-MB is the factory replacement controller for all PAD-5 addressable power-supply kits. Swapping this board restores the PAD-5’s four supervised NAC outputs, follower input, temperature-compensated battery charger, strobe-sync generator, ANSI Temporal and March-time coding, status LEDs, and dual trouble relays without replacing the cabinet or power module. The board occupies one address on the P2 loop, so all NACs remain fully monitored and programmable from the host Siemens Modular FACP. Key Specifications: Application: Replacement main board for PAD-5-6A, PAD-5-6A-R, PAD-5-9A, and PAD-5-9A-R kits Outputs: Four 24 V DC power-limited circuits (Class B), convertible to two Class A with optional PAD-5-CLSA card Total Load: Up to 6 A with a 170 W supply or 9 A with a 300 W supply (depends on host kit) Auxiliary Output: 24 V DC at 3 A (counts toward total load) Follower Input: One supervised trigger, 16 – 33 V DC polarity-reversing or dry contact Sync & Coding: System Sensor, Wheelock, Gentex, AMSECO sync; ANSI Temporal 3 and Temporal 4; March-time 30 / 60 / 120 PPM Battery Charger: Charges two 7 Ah or 18 Ah batteries in the cabinet and supports up to 18 Ah remotely Trouble Relays: Form C general-trouble and Form A AC-fail contacts Indicators & Setup: Power, fault, and output LEDs; DIP-switch configuration with no software required Accessories: PAD-5-CLSA - Class A/B expansion card PAD-5-CDC - four-zone detector card PAB-ENCL - replacement enclosure PAD4-BATT-BRKT - seismic battery bracket