Siemens PAD-4-9A (part number S54339-A3-A1) is the complete 9 amp PAD-4 distributed power supply kit, a notification appliance circuit (NAC) extender for Siemens fire alarm control panels. The kit contains the PAD-4-ENCL enclosure, the PAD-4-MB main board and the FP2012-U1 300 watt power supply. It distributes additional 24 VDC power for audible and visible appliances and provides a power-limited auxiliary output.
Specifications
| Kit contents |
PAD-4-ENCL enclosure (500-050081), PAD-4-MB main board (500-650217), FP2012-U1 300 W power supply (S54400-Z60-A1) |
| Total output |
24 VDC at 9 A max. with FP2012-U1 |
| NACs |
Four Class B or two Class A power-limited circuits, 3 A max. each (four Class A with PAD-4-CLSA) |
| Auxiliary output |
One circuit, 3 A max., power-limited |
| Input circuits |
Two, Class B or Class A supervised; 16 to 33 VDC/VFW; 7.0 mA max. |
| Signal patterns |
Steady, synchronized strobe, ANSI Temporal 3, ANSI Temporal 4 |
| Trouble contacts |
Form C trouble and Form A AC Fail, 2.0 A at 30 VDC resistive |
| Battery charging |
Up to 18 Ah; enclosure houses up to 7 Ah batteries |
| Enclosure |
13.5 x 18.75 x 3.25 in. (34.3 x 47.6 x 8.3 cm), red |
| Environment |
Indoor dry, 32 to 120 °F (0 to 49 °C), up to 93% RH non-condensing |
| Listings |
UL 864 9th Edition, UL 1481; FM 3010; CSFM 7315-0067:0268 |
Compatibility and installation notes
- Used with Siemens Fire Safety fire alarm control panels; outputs are compatible with Siemens 24 VDC alarm signaling devices.
- Can be driven from an FACP NAC or monitored with a TRI-series module on a Siemens intelligent system.
- Batteries larger than 7 Ah must be housed in a System 3 enclosure or a separate UL listed battery enclosure.
- Two PAD-4 units can share one battery set when mounted together in a System 3 enclosure with the S3AP adapter plate.
- Seismic certification applies when used with the PAD4-BATT-BRKT battery bracket.
- Optional PAD-4-FDT software with PAD-4-LUA USB adapter for diagnostics and firmware updates.
Related models
Documents
Specifications from Siemens data sheet 3363 Rev. 8, May 2024. Manufacturer specifications are subject to change.
