Condition: New
Siemens (Pyro) PAD-4-MB
Siemens (Pyro) PAD-4-MB
Board Main NAC Expander Pad-4
Regular price
$434.99
Sale price
$434.99
Regular price
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Distributed Power Supply – NAC Extender Replacement Board
Key Features
- Factory replacement control board for PAD-4 series power supplies
- Four 24 VDC power-limited NAC/auxiliary outputs (Class B)
- Convertible to two Class A circuits with PAD-4-CLSA adapter
- Total load: Up to 6A (170W) or 9A (300W) depending on supply
- Each NAC supports up to 3 amps per circuit
- Built-in strobe-sync generator and ANSI Temporal coding
- Batteries: Charges two 7Ah or 18Ah batteries internally, up to 18Ah remotely
Technical Specifications
- Two supervised inputs (16–33 VDC, reverse polarity, or dry contact)
- Four supervised output circuits with on-board battery charger
- Built-in System Sensor, Wheelock, Gentex, AMSECO sync
- ANSI Temporal 3 and Temporal 4 coding patterns
- Dual trouble relays
- Status LEDs for circuit monitoring
- Compatible with all Siemens Fire Safety 24VDC alarm devices
Certifications
- Fire alarm system component per Siemens specifications
- NAC extender replacement board
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