Kidde VS4-RE (Replacement Electronics Assembly, VS4 Series)

The Kidde VS4-RE is the factory replacement electronics assembly for VS4-series intelligent fire-alarm control panels. The kit includes the main control board, integrated 6.0 A power-supply module, front-panel LCD/operator interface, and all ribbon and plug connectors pre-installed for quick swap-in service. Board includes one 250-point Signature loop controller and four on-board NAC drivers ready for Class B or Class A wiring, restoring full CPU, loop-control, power-distribution, and display functions to any VS4 cabinet without disturbing field wiring, batteries, or peripheral option cards. Model Variants: VS4-G – Gray door, no dialer VS4-GD – Gray door, dual-line dialer VS4-R – Red door, no dialer VS4-RD – Red door, dual-line dialer VS4-RE – Replacement electronics assembly (main board) Key Specifications: Function: Replacement main electronics assembly for Kidde VS4 panels Pre-installed Loop Controller: One 250-point Class B/Class A Signature loop (supports 125 detectors + 125 modules) NAC Drivers: Four Class B (or two Class A) channels, 2.5 A each, 6.0 A system total Power Supply: 6.0 A regulated, with dual 24 V auxiliary outputs (500 mA each, one resettable) Primary Power: 120 VAC 60 Hz, 2.0 A input (board mounts to existing transformer) Battery Charger: 26 Ah capacity; accepts two 18 Ah batteries in cabinet Display/Controls: Built-in 4-line LCD, keypad, two programmable switch/LED pairs Communicator Slot: Accepts optional SA-DACT dual-line dialer (not included) Compatibility: Fits all VS4-series enclosures (gray or red door) Compatible Modules & Accessories: SA-DACT – Dual-line dialer / modem module SA-232 – RS-232 interface card SA-ETH – 10/100 Base-T Ethernet card V-SLC2-1 – 250-point single-loop controller (expands panel to 500 points) V-SLC2-2 – 500-point dual-loop controller (expands panel to 1,000 points) RZI16-2 – 16 IDC / 2 NAC remote zone interface D16L-VS – 16-zone LED display expander K-RLCD – LCD remote annunciator (gray, no common controls) K-RLCD-CR – LCD remote annunciator (red, with common controls) CTM – City-tie module BC-1R – 24 Ah battery cabinet (red) MFC-A – Multifunction accessory cabinet Compatible Detectors & Devices: KI-OSD – Optical smoke detector KI-OSHD – Optical smoke + heat detector KI-HFD – Fixed-temperature heat detector KI-HRD – Fixed-temperature / rate-of-rise heat detector KI-HCD – Heat + CO detector KI-SB – Standard detector base KI-IB – Isolator detector base KI-RB – Relay detector base KI-ABST – Sounder detector base GSA-CC1 – Control module GSA-CR – Relay control module GSA-MM1 – Monitor module