{"product_id":"pad-4-6a-siemens-complete-6a-nac-power-expander-and-battery-charger-kit","title":"PAD-4-6A | Siemens Complete 6A NAC Power Expander and Battery Charger Kit","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"144\" data-end=\"396\"\u003eThe 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.\u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 99.964%; height: 431.2px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eFire Alarm Components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003ePAD-4-6A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eNAC Power Expander and Battery Charger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eDistributed Power Supply Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eTotal Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003e24 VDC at 6 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eCircuit Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eFour Class B or Two Class A Circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eAuxiliary Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003e24 VDC, 3 A (counts toward 6 A total)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eControl Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eTwo Supervised Triggers (16–33 VDC or Dry Contact)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003ePower Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003e120 VAC, 50\/60 Hz, 3 A Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 39.2px;\"\u003e\u003cstrong\u003eSynchronization Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 39.2px;\"\u003eSystem Sensor, Wheelock, Gentex, AMSECO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eCoding Patterns\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eANSI Temporal 3 \u0026amp; 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eBattery Charger\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eOnboard, Supports up to 18 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eBattery Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eTwo 7 Ah or Two 18 Ah Batteries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eTrouble Relays\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eForm C General-Trouble and Form A AC-Fail Contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eIndicators\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eLED Status for Output and Fault Conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eMounting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eWall-Mount Enclosure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eSiemens Fire Safety Fire Alarm Control Panels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eCompliance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003eUL Listed, ADA Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 28.8915%; height: 19.6px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 70.9753%; height: 19.6px;\"\u003e16 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003ePAD-4-6A\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete 6A Power Kit: Ships with PAD-4 main board, 170W power supply, and enclosure for immediate installation.\u003c\/li\u003e\n\u003cli\u003eMultiple Output Circuits: Provides four Class B or two Class A NAC outputs for flexible system design.\u003c\/li\u003e\n\u003cli\u003eAuxiliary Power Capability: Includes a 24 VDC, 3A auxiliary output for external system components.\u003c\/li\u003e\n\u003cli\u003eBuilt-In Battery Charger: Supports up to two 18 Ah batteries for reliable standby power.\u003c\/li\u003e\n\u003cli\u003eWide Sync Compatibility: Integrates with System Sensor, Wheelock, Gentex, and AMSECO synchronization protocols.\u003c\/li\u003e\n\u003cli\u003eDual Trouble Relays: Features general trouble and AC-failure contacts for enhanced monitoring.\u003c\/li\u003e\n\u003cli\u003eStrobe Sync and Coding Options: Includes ANSI Temporal 3 and 4 tone patterns for compliant signaling.\u003c\/li\u003e\n\u003cli\u003eLED Status Indicators: Provide immediate visual feedback for output, charging, and fault conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe PAD-4-6A delivers the reliability and precision required for expanding power capacity and maintaining consistent, supervised operation in Siemens fire alarm systems.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":49105145037056,"sku":"PAD-4-6A","price":1527.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/PAD-4-6A.jpg?v=1785541246","url":"https:\/\/alotechparts.com\/products\/pad-4-6a-siemens-complete-6a-nac-power-expander-and-battery-charger-kit","provider":"Alo Tech Solutions","version":"1.0","type":"link"}