PAD-4-6A | Siemens Complete 6A NAC Power Expander and Battery Charger Kit
Siemens · Power Supplies & Transformers
Description The Siemens PAD-4-6A Complete Kit provides 6 amps of regulated 24 VDC power for fire alarm notification appliances and auxiliary loads. It includes the PAD-4 main board, power supply, and enclosure, functioning as a fully integrated NAC expander and battery charger for Siemens fire alarm systems. Technical Specifications Condition New/Never Used Surplus Brand Siemens Category Fire Alarm Components Part Number PAD-4-6A Subcategory NAC Power Expander and Battery Charger Type Distributed Power Supply Unit Total Output Power 24 VDC at 6 A Circuit Configuration Four Class B or Two Class A Circuits Auxiliary Output 24 VDC, 3 A (counts toward 6 A total) Control Inputs Two Supervised Triggers (16–33 VDC or Dry Contact) Power Input 120 VAC, 50/60 Hz, 3 A Maximum Synchronization Support System Sensor, Wheelock, Gentex, AMSECO Coding Patterns ANSI Temporal 3 & 4 Battery Charger Onboard, Supports up to 18 Ah Battery Capacity Two 7 Ah or Two 18 Ah Batteries Trouble Relays Form C General-Trouble and Form A AC-Fail Contacts Indicators LED Status for Output and Fault Conditions Mounting Wall-Mount Enclosure Compatibility Siemens Fire Safety Fire Alarm Control Panels Compliance UL Listed, ADA Compliant Weight 16 lbs Information About PAD-4-6A The PAD-4-6A is a complete 6-amp power distribution and notification appliance circuit (NAC) expansion kit designed for Siemens fire alarm systems. It includes the PAD-4 main board, a 170-watt power supply, and an enclosure, offering a ready-to-install solution for system expansion. This unit provides regulated 24 VDC power with four Class B or two Class A outputs and features built-in strobe synchronization supporting major manufacturers, including System Sensor, Wheelock, Gentex, and AMSECO. The integrated charger supports up to two 18 Ah batteries for backup operation, while dual trouble relays and LED indicators enhance supervision and maintenance visibility. The PAD-4-6A extends system capacity for audible and visual signaling in compliance with ADA and NFPA standards. Key Features: Complete 6A Power Kit: Ships with PAD-4 main board, 170W power supply, and enclosure for immediate installation. Multiple Output Circuits: Provides four Class B or two Class A NAC outputs for flexible system design. Auxiliary Power Capability: Includes a 24 VDC, 3A auxiliary output for external system components. Built-In Battery Charger: Supports up to two 18 Ah batteries for reliable standby power. Wide Sync Compatibility: Integrates with System Sensor, Wheelock, Gentex, and AMSECO synchronization protocols. Dual Trouble Relays: Features general trouble and AC-failure contacts for enhanced monitoring. Strobe Sync and Coding Options: Includes ANSI Temporal 3 and 4 tone patterns for compliant signaling. LED Status Indicators: Provide immediate visual feedback for output, charging, and fault conditions. The PAD-4-6A delivers the reliability and precision required for expanding power capacity and maintaining consistent, supervised operation in Siemens fire alarm systems.
Brand: Siemens · Category: Power Supplies & Transformers
Key features
- Complete 6A Power Kit: Ships with PAD-4 main board, 170W power supply, and enclosure for immediate installation.
- Multiple Output Circuits: Provides four Class B or two Class A NAC outputs for flexible system design.
- Auxiliary Power Capability: Includes a 24 VDC, 3A auxiliary output for external system components.
- Built-In Battery Charger: Supports up to two 18 Ah batteries for reliable standby power.
- Wide Sync Compatibility: Integrates with System Sensor, Wheelock, Gentex, and AMSECO synchronization protocols.
- Dual Trouble Relays: Features general trouble and AC-failure contacts for enhanced monitoring.
- Strobe Sync and Coding Options: Includes ANSI Temporal 3 and 4 tone patterns for compliant signaling.
- LED Status Indicators: Provide immediate visual feedback for output, charging, and fault conditions.
Specifications
| Manufacturer part number | PAD-4-6A |
|---|---|
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Fire Alarm Components |
| Part Number | PAD-4-6A |
| Subcategory | NAC Power Expander and Battery Charger |
| Type | Distributed Power Supply Unit |
| Total Output Power | 24 VDC at 6 A |
| Circuit Configuration | Four Class B or Two Class A Circuits |
| Auxiliary Output | 24 VDC, 3 A (counts toward 6 A total) |
| Control Inputs | Two Supervised Triggers (16–33 VDC or Dry Contact) |
| Power Input | 120 VAC, 50/60 Hz, 3 A Maximum |
| Synchronization Support | System Sensor, Wheelock, Gentex, AMSECO |
| Coding Patterns | ANSI Temporal 3 & 4 |
| Battery Charger | Onboard, Supports up to 18 Ah |
| Battery Capacity | Two 7 Ah or Two 18 Ah Batteries |
| Trouble Relays | Form C General-Trouble and Form A AC-Fail Contacts |
| Indicators | LED Status for Output and Fault Conditions |
| Mounting | Wall-Mount Enclosure |
| Compatibility | Siemens Fire Safety Fire Alarm Control Panels |
| Compliance | UL Listed, ADA Compliant |
| Weight | 16 lbs |
| Product type | Intelligent Interface Module |
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