System Sensor MP120K Mounting Plate Adapter

The System Sensor MP120K Mounting Plate Adapter is a 120VAC adapter mounting plate designed to power compatible SpectrAlert® Advance notification appliances from a standard 120VAC electrical source. The System Sensor MP120K integrates a built-in power supply that converts 120VAC to nominal 24V Full-Wave Rectified (FWR) power, allowing compatible horns, strobes, horn strobes, chimes, and chime strobes to be installed where 120VAC circuits are available. Therefore, it provides a convenient solution for commercial, industrial, and institutional fire alarm notification applications.

System Sensor MP120K Function

The System Sensor MP120K is designed to provide operating power for compatible SpectrAlert Advance notification appliances using a 120VAC branch circuit. As a result, installers can deploy notification devices without requiring a separate remote 24VDC power supply. In addition, the adapter mounting plate simplifies wiring while maintaining reliable operation for compatible audible and visible notification devices.

120VAC to 24V FWR Power Conversion

The MP120K incorporates an internal power supply that converts 120VAC input power to nominal 24V Full-Wave Rectified (FWR) output. Consequently, compatible SpectrAlert Advance appliances receive the proper operating voltage directly from the mounting plate. Moreover, this integrated design reduces installation complexity and minimizes additional hardware requirements.

Compatible with SpectrAlert Advance Devices

The System Sensor MP120K is compatible with a wide range of SpectrAlert Advance horns, strobes, horn strobes, chimes, and chime strobes. Therefore, it provides installation flexibility for numerous notification appliance configurations. However, the MP120K is intended for non-synchronized applications and is not compatible with SpectrAlert Sync•Circuit Modules.

Plug-In Mounting Plate Design

The MP120K features a plug-in mounting plate design that simplifies installation and helps eliminate ground faults. As a result, installers benefit from faster device mounting and easier servicing. Additionally, the unit is designed for installation in a standard electrical box using pigtail wiring connections.

Indoor and Outdoor Applications

The System Sensor MP120K is suitable for both indoor and outdoor notification appliance installations when used with compatible devices. Consequently, it supports a variety of commercial and institutional fire alarm projects requiring 120VAC-powered notification appliances. Furthermore, its durable construction provides dependable long-term performance in demanding environments.

Technical Specifications

• Model: MP120K
• Type: 120VAC Adapter Mounting Plate
• Input Voltage: 120VAC Nominal
• Operating Voltage Range: 96–132VAC
• Output Voltage: Nominal 24V Full-Wave Rectified (FWR)
• Maximum Input Current: 150mA
• Mounting: Standard Electrical Box
• Wiring: Pigtail Leads
• Compatible Devices: SpectrAlert Advance Horns, Strobes, Horn Strobes, Chimes, and Chime Strobes
• Application: Non-Synchronized Notification Appliance Installation
• Operating Temperature: -40°F to 151°F (-40°C to 66°C)
• Humidity: 10–93% Non-Condensing
• Indoor/Outdoor Rated
• UL Listed for Compatible Applications

Applications

The System Sensor MP120K Mounting Plate Adapter is ideal for:

• Fire alarm notification systems
• Commercial buildings
• Educational facilities
• Healthcare facilities
• Industrial buildings
• Warehouses
• Retail facilities
• Office buildings
• Indoor and outdoor notification appliance installations
• SpectrAlert Advance retrofit applications

Reliable 120VAC Notification Appliance Power Solution

The System Sensor MP120K Mounting Plate Adapter combines integrated 120VAC to 24V FWR power conversion, plug-in installation, and broad SpectrAlert Advance compatibility in a compact mounting solution. Overall, it simplifies fire alarm notification appliance installations while providing dependable power for compatible horns, strobes, chimes, and combination notification devices in commercial life safety systems.

MP120K Datasheet