The Simplex 4100-5111 Expansion System Power Supply (catalog 8742-631) is the secondary power supply card designed to expand capacity in Simplex 4100U fire alarm control panel systems. The 4100-5111 delivers 9 A total output for “Special Application” appliances (4 A for “Regulated 24 DC” appliances) with all outputs power-limited except the battery charger circuit. On-board resources include a 250-point IDNet SLC, three independent 3 A NACs, a 2 A auxiliary power output, an auxiliary relay, and earth fault detection. The dual-rate temperature-compensated battery charger supports up to 50 Ah batteries in the panel cabinet or up to 110 Ah in an external battery cabinet (UL listed for both). Analog telemetry — battery voltage, charger voltage, charger current, system voltage, system current, and individual NAC currents — is reported back to the 4100U master controller. Dimensions: 12.5″ × 6.5″ × 5″; weight 5 lbs. This unit is reconditioned and carries a one-year warranty.
Key Features
- 9 A total output for Special Application appliances; 4 A for Regulated 24 DC appliances
- All outputs power-limited except battery charger
- IDNet SLC: 250-point Class B or Class A addressable device loop
- Three on-board 3 A NACs — Class B or Class A selectable; synchronized strobe or SmartSync horn/strobe operation
- NACs can be reconfigured as auxiliary power outputs (derated to 2 A continuous; max 5 A total auxiliary)
- 2 A Auxiliary Power Output: selectable for detector reset, door holder, or coded output
- Auxiliary Relay: N.O. or N.C., 2 A @ 32 VDC; programmable as trouble relay or auxiliary control
- Dual-rate temperature-compensated battery charger: up to 50 Ah in-cabinet, up to 110 Ah external (UL listed)
- Battery and charger analog monitoring reported to master controller
- Earth (ground) fault detection on-board
- Optional City Connect Module or Alarm Relay Module provisions
Compatible Panels
Simplex 4100U
Life Safety Consultants has supplied Simplex 4100U replacement parts since 2002, including reconditioned expansion power supplies backed by a one-year warranty. For the 4100-5111 or other 4100U expansion components, call 1-888-557-0558 or email sales@lifesafetycom.com.
Additional information
| Weight | 5 lbs |
|---|---|
| Dimensions | 12.5 × 6.5 × 5 in |
| Condition | Reconditioned with one year warranty ! |
| Part Type | Power Supply |
| Manufacturers | Simplex |
| Compatible Panels | 4100U |
| Cross Reference | 8742-631 |
| Specification | 9 A total (Special Application), 4 A (Regulated 24 DC), 3×3 A NACs (Class B/A selectable), 250-pt IDNet SLC, dual-rate temp-compensated battery charger (50 Ah in-cabinet, 110 Ah external UL), 2 A aux relay N.O./N.C. 2A@32VDC, earth fault detection, 12.5×6.5×5 in, 5 lbs |
