Description 

The Siemens PAD-4-MB is a replacement main board for the PAD-4 NAC (Notification Appliance Circuit) expander module. It restores proper circuit expansion capability for Siemens fire alarm systems, ensuring reliable operation of notification devices.

Technical Specifications 

Information About PAD-4-MB

The PAD-4-MB is part of Siemens’ replacement component offerings for the PAD-4 notification appliance expander. It is designed to provide full functionality as a direct replacement for the original main board in the module. The board supports the distribution of additional notification appliance circuits, allowing fire alarm systems to power and control horns, strobes, and other signaling devices. By replacing only the board, it offers a cost-effective solution for maintaining system integrity without replacing the full NAC expander assembly.

Key Features:

• Direct Replacement: Designed specifically for Siemens PAD-4 NAC expander modules.
• Notification Appliance Support: Maintains distribution of additional horns, strobes, and signaling devices.
• System Compatibility: Fully compatible with Siemens fire alarm control panels.
• Cost-Effective Solution: Restores module functionality without replacing the full enclosure.
• Reliable Performance: Provides the same operational capability as the original board.
• Simplified Maintenance: Designed for field replacement in existing systems.

The PAD-4-MB delivers the reliability and precision required for maintaining Siemens fire alarm NAC expansion systems.