Siemens (Pyro) PAD-4-MB-RC
Siemens (Pyro) PAD-4-MB-RC
RECON-Board Main PAD-4 NAC Expander
Regular price
$361.19
Sale price
$361.19
Regular price
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Requires reconditioning, ships in 14–21 days.
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The Siemens PAD-4-MB is the main circuit board for the Siemens PAD-4 distributed power supply unit, providing four supervised, power-limited 24 VDC notification appliance circuit outputs for expanding a fire alarm system's signaling capacity. Each output is rated at 3 amps, and the board is built around microprocessor-controlled battery charging, ground-fault detection, and strobe synchronization.
Key Features
- Four Class B NAC/aux outputs, convertible to two Class A circuits with a PAD-4-CLSA adapter card
- On-board battery charger, strobe-sync generator, and ANSI temporal coding
- Two supervised trigger inputs (16-33 VDC, reverse polarity, or dry contact)
- Dual trouble relays and status LEDs for local fault indication
Technical Specifications
- Output Rating: 3A at 24 VDC per NAC circuit, four circuits total
- Compatible Enclosures: PAD-4-6A, PAD-4-6A-CLSA, PAD-4-9A, PAD-4-9A-CLSA
- Ground-fault detection and on-board battery supervision
Certifications
- UL 864 9th Edition Listed
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