Siemens (Pyro) PAD-4-6A
Siemens (Pyro) PAD-4-6A
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The Siemens (Pyro) PAD-4-6A is a complete 6-amp notification appliance circuit (NAC) expander and battery charger kit, shipping with the PAD-4 main board, a matching enclosure, and a 170W power supply. It adds 24VDC regulated power across four Class B or two Class A notification circuits, and its two supervised control inputs (16-33VDC or dry contact) let it be triggered directly from a fire alarm control panel that has run out of onboard NAC capacity.
Key Features
- Complete kit: PAD-4 board, enclosure, and 170W power supply included
- Two supervised control inputs accepting 16-33VDC or dry-contact triggers
- Built-in synchronization for System Sensor, Wheelock, Gentex, and AMSECO notification appliances
- ANSI Temporal 3 and Temporal 4 coding patterns supported
- Microprocessor-controlled with ground-fault detection
Technical Specifications
- NAC Output: 24VDC, 6A total (four Class B or two Class A circuits)
- Auxiliary Output: 24VDC, 3A (counted within the 6A total)
- Primary Power: 120VAC, 50/60Hz, 3A maximum
- Battery Capacity: Two 7Ah or 18Ah batteries internal; charger supports up to 18Ah
- Trouble Outputs: Form C general trouble relay, Form A AC-fail contact
Certifications
- UL Listed fire alarm notification power supply/booster
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