1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of the Simplex 4100-0634 Power Distribution Terminal Block. This module is designed to distribute 120V power within a fire alarm system, serving as an auxiliary panel component. Adherence to these instructions is crucial for safe and effective system performance.
2. Important Safety Information
WARNING: Risk of Electric Shock and Fire Hazard.
- Installation and servicing must be performed by qualified and authorized personnel only.
- Always disconnect all power sources before installing, servicing, or performing any maintenance on the module or connected equipment.
- Ensure all wiring complies with national and local electrical codes and regulations.
- Do not expose the module to moisture or extreme temperatures.
- Verify correct voltage (120 Volts AC) before connecting to the power source.
3. Package Contents
Please verify that all items are present and undamaged upon opening the package:
- One (1) Simplex 4100-0634 Power Distribution Module
4. Setup and Installation
The Simplex 4100-0634 module is designed for wall mount installation and integrates into a larger fire alarm system. Professional installation is required.
4.1 Mounting
Secure the module to a suitable wall surface using appropriate fasteners through the designated mounting holes. Ensure the mounting location is dry, stable, and provides adequate ventilation.
4.2 Electrical Connections
The module features screw-type terminals for electrical connections. Refer to the system's overall wiring diagrams and local codes for specific connection points.
- AC Input: Connect the 120V AC power supply to the designated AC input terminals.
- Battery Connections: Connect auxiliary battery power to the battery terminals as per system requirements for backup power.
- Output Terminals: Connect the fire alarm system components requiring power to the module's output terminals.

Figure 1: Front view of the Simplex 4100-0634 module, illustrating the layout of the screw terminals for power input (AC) and battery connections, along with multiple output terminals.

Figure 2: Internal view of the Simplex 4100-0634 module's circuit board, highlighting the arrangement of the terminal blocks and internal wiring for power distribution.
Ensure all connections are secure and properly insulated to prevent short circuits or electrical hazards. Double-check all wiring before applying power.
5. Operating Principles
The Simplex 4100-0634 is a passive power distribution module. Once correctly installed and connected to a 120V AC power source and auxiliary battery, it functions by distributing the necessary power to connected fire alarm system components. It does not have user-operable controls or indicators. Its operation is integral to the overall fire alarm system's power management.
6. Maintenance
Regular maintenance is crucial for the reliable operation of the Simplex 4100-0634 module and the entire fire alarm system. Maintenance should only be performed by qualified service technicians.
- Visual Inspection: Periodically inspect the module for any signs of physical damage, loose connections, or overheating.
- Connection Integrity: Ensure all screw terminals remain tight and secure.
- Cleaning: Keep the module free from dust and debris. Use a soft, dry cloth for cleaning. Do not use liquid cleaners.
- System Testing: Follow the fire alarm system's recommended testing schedule to ensure all components, including the power distribution module, are functioning correctly.
7. Troubleshooting
The Simplex 4100-0634 module is a robust component with no user-serviceable parts. If the fire alarm system experiences power-related issues, consider the following general troubleshooting steps before contacting a professional:
- No Power to Connected Devices:
- Verify the 120V AC input power supply is active and correctly connected.
- Check the integrity of all screw terminal connections.
- Ensure the auxiliary battery is charged and properly connected, if applicable.
- Unusual Odors or Sounds: Immediately disconnect power and contact a qualified service technician. Do not attempt to operate the module.
For any issues beyond basic visual inspection, contact a certified fire alarm system technician. Do not attempt repairs yourself.
8. Specifications

Figure 3: Back view of the Simplex 4100-0634 module, displaying product labels, model number, installation instructions reference, and compliance certifications.
| Feature | Detail |
|---|---|
| Model Number | 4100-0634 |
| Brand | Simplex |
| Description | Power Distribution Module 120V |
| Voltage | 120 Volts AC |
| Connector Type | Screw |
| Mounting Type | Wall Mount |
| Material | Plastic |
| Color | White |
| Item Weight | 1 pound |
| Manufacturer | SIMPLEX |
| UPC | 734038305492 |
| Part Number | S41000634 |
| Power Source | Designed for 120V AC input; supports auxiliary battery power for connected systems. |
9. Warranty and Support
For warranty information and technical support regarding your Simplex 4100-0634 Power Distribution Terminal Block, please refer to the documentation provided with your complete fire alarm system or contact your authorized Simplex distributor or service provider. Simplex products are typically covered by a manufacturer's warranty against defects in materials and workmanship under normal use.
For further assistance, please contact your fire safety equipment supplier or a certified fire alarm system professional.





