



4100-5111 | Simplex Expansion Power Supply Module for 4100U/4100ES Fire Alarm Systems
- Regular price
- $3,782.00
- Sale price
- $3,782.00
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Product Description P/N: 4100-5111
Description
The Simplex 4100-5111 is an expansion power supply module designed for use with Simplex 4100U and 4100ES fire alarm control panels. It provides regulated 24 VDC system power, battery charging, notification appliance circuits (NACs), and auxiliary outputs to extend system capacity. Built for reliability, the 4100-5111 supports up to 250 addressable points and integrates advanced monitoring features to ensure continuous operation.
Technical Specifications
Condition | New/Never Used Surplus |
Brand | Simplex |
Category | Fire Alarm Systems |
Part Number | 4100-5111 |
Subcategory | Expansion Power Supply Module |
Series | 4100U / 4100ES |
Output Power | 9 A (Special Application), 4 A (Regulated 24 VDC) |
Notification Circuits | 3 NACs, 3 A each, selectable Class A or Class B |
Strobe/Horn Operation | Supports synchronized strobe or SmartSync horn/strobe over 2 wires |
IDNet Capacity | Up to 250 addressable points |
Auxiliary Power | 2 A output, configurable for detector reset, door holder, or coded output |
Auxiliary Relay | 2 A @ 32 VDC, N.O. or N.C., programmable |
Battery Charger | Dual-rate, temperature compensated; up to 50 Ah internal, 110 Ah external |
Monitoring Functions | Battery voltage, charger voltage/current, system voltage/current, NAC current |
Wiring Compatibility | Class A or Class B |
Protection Features | Overcurrent, short-circuit, and earth fault detection |
Dimensions | 12.5 × 6.5 × 5 in |
Weight | 15 lbs |
Information About 4100-5111
The 4100-5111 is part of the Simplex 4100U/4100ES Series, engineered for scalable fire alarm and life safety systems. It delivers 9 A of total output power for special application appliances and 4 A for regulated 24 VDC devices, making it suitable for demanding installations. The unit includes three onboard NACs, an IDNet communications channel, an auxiliary relay, and a dual-rate, temperature-compensated battery charger. Designed for seamless compatibility with 4100U and 4100ES panels, it enhances power distribution, device capacity, and system resilience.
Key Features:
- High Power Output: Supplies 9 A total for “Special Application” appliances and 4 A for regulated 24 VDC devices.
- Integrated NACs: Provides three 3 A NACs, configurable as Class A or Class B, with strobe synchronization or SmartSync operation.
- IDNet Channel: Supports communication for up to 250 addressable devices with Class A or Class B wiring.
- Battery Charging: Dual-rate charger supports up to 50 Ah batteries internally or 110 Ah in an external cabinet.
- Auxiliary Relay: Programmable 2 A relay for trouble or auxiliary control functions.
- System Monitoring: Reports real-time analog values for voltage, current, and NAC status to the master controller.
- Overcurrent & Short-Circuit Protection: Electronic safeguards protect system integrity and restore automatically after faults.
- Seamless Integration: Fully compatible with Simplex 4100U and 4100ES systems for expansion applications.
The 4100-5111 delivers the reliability and precision required for expanding fire alarm system power, device capacity, and communication capabilities.
Description
The Simplex 4100-5111 is an expansion power supply module designed for use with Simplex 4100U and 4100ES fire alarm control panels. It provides regulated 24 VDC system power, battery charging, notification appliance circuits (NACs), and auxiliary outputs to extend system capacity. Built for reliability, the 4100-5111 supports up to 250 addressable points and integrates advanced monitoring features to ensure continuous operation.
Technical Specifications
Condition | New/Never Used Surplus |
Brand | Simplex |
Category | Fire Alarm Systems |
Part Number | 4100-5111 |
Subcategory | Expansion Power Supply Module |
Series | 4100U / 4100ES |
Output Power | 9 A (Special Application), 4 A (Regulated 24 VDC) |
Notification Circuits | 3 NACs, 3 A each, selectable Class A or Class B |
Strobe/Horn Operation | Supports synchronized strobe or SmartSync horn/strobe over 2 wires |
IDNet Capacity | Up to 250 addressable points |
Auxiliary Power | 2 A output, configurable for detector reset, door holder, or coded output |
Auxiliary Relay | 2 A @ 32 VDC, N.O. or N.C., programmable |
Battery Charger | Dual-rate, temperature compensated; up to 50 Ah internal, 110 Ah external |
Monitoring Functions | Battery voltage, charger voltage/current, system voltage/current, NAC current |
Wiring Compatibility | Class A or Class B |
Protection Features | Overcurrent, short-circuit, and earth fault detection |
Dimensions | 12.5 × 6.5 × 5 in |
Weight | 15 lbs |
Information About 4100-5111
The 4100-5111 is part of the Simplex 4100U/4100ES Series, engineered for scalable fire alarm and life safety systems. It delivers 9 A of total output power for special application appliances and 4 A for regulated 24 VDC devices, making it suitable for demanding installations. The unit includes three onboard NACs, an IDNet communications channel, an auxiliary relay, and a dual-rate, temperature-compensated battery charger. Designed for seamless compatibility with 4100U and 4100ES panels, it enhances power distribution, device capacity, and system resilience.
Key Features:
- High Power Output: Supplies 9 A total for “Special Application” appliances and 4 A for regulated 24 VDC devices.
- Integrated NACs: Provides three 3 A NACs, configurable as Class A or Class B, with strobe synchronization or SmartSync operation.
- IDNet Channel: Supports communication for up to 250 addressable devices with Class A or Class B wiring.
- Battery Charging: Dual-rate charger supports up to 50 Ah batteries internally or 110 Ah in an external cabinet.
- Auxiliary Relay: Programmable 2 A relay for trouble or auxiliary control functions.
- System Monitoring: Reports real-time analog values for voltage, current, and NAC status to the master controller.
- Overcurrent & Short-Circuit Protection: Electronic safeguards protect system integrity and restore automatically after faults.
- Seamless Integration: Fully compatible with Simplex 4100U and 4100ES systems for expansion applications.
The 4100-5111 delivers the reliability and precision required for expanding fire alarm system power, device capacity, and communication capabilities.

