DIN Rail 4A Intelligent Power Supply


The Protege DIN Rail 4A Intelligent Power Supply provides 12VDC power ideal for running security, access control or automation devices along with large numbers of Protege network powered modules in the same installation. The Protege DIN Rail 4A Intelligent Power Supply is designed for use with Industry Standard DIN Rail Mounting.

Key Features:

Reliable Power

The Protege DIN Rail 4A Intelligent Power Supply is capable of supplying power to a large number of smaller devices or multiple high current devices with a combined output of 4 Amps total. Additionally, a battery charging circuit current of 500mA is also provided by the module. A continuous source of power is maintained with the inclusion of intelligent battery backup charging, optimal level maintenance and seamless switch on AC failure. The battery backup, AC status and core temperature are constantly monitored, and failure conditions are communicated to the Protege System.

Intelligent Power Monitoring

The Protege DIN Rail 4A Intelligent Power Supply is able to relay information about critical system voltages, currents and core temperature to the Protege Integrated System Controller by registering as an analog expander module on the Protege network. The Protege Integrated System Controller can then store these values in system registers that can be viewed live from the Protege System Management Suite Software. This allows live viewing of the system voltages, currents and core temperature along with logging for review at any time.


Single RS-485 communication interface port used for all network communication functions and interconnects to other modules.

Upgradable Firmware

Utilizing the latest flash technology and high performance communication mediums the firmware of the Protege DIN Rail 4A Intelligent Power Supply can be updated using the ICT Loadit utility over the Protege system module network.

Ordering Code PRT-PSU-DIN-4A
Power Supply
Mains Input Voltage 120VAC (90-264VAC, 47-63Hz)
Mains Input Operating Current 120VAC 1500mA (full load)
DC Output (Combined) 12.64VDC 4.0A max (V1Out + V2Out total)
DC Output (Single) 12.2VDC 3A max
Battery Charging 500mA (typical)
Battery Low 10.5VDC
Battery Restore 11.5VDC
RS-485 Isolated module network
PGM Outputs 2 solid state relay outputs, 50mA 12V max each
Tamper Dedicated hardware tamper input
Trouble Inputs 8 (internal)
Dimensions (L x W x H) 156.8 x 90 x 60mm (6.17 x 3.54 x 2.36")
Net Weight 470g (16.6oz)
Gross Weight 580g (20.5oz)
Operating UL/ULC 0˚ to 49˚C (32˚ to 120˚F) : EU EN -10˚ to 55˚C (14˚ to 131˚F)
Storage -10˚- 85˚C (14˚ - 185˚F)
Humidity 0%-93% non condensing, indoor use only (relative humidity)

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