Protege DIN Rail
4A Intelligent Power Supply

PRT-PSU-DIN-4A

The Protege DIN Rail 4A Intelligent Power Supply provides the Protege system with 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 power supply includes intelligent charging for optimum performance and allows for simple and powerful monitoring of supply currents and voltages.

  • Mains input for ready deployment reduces setup complexity
  • 2 Form B relay outputs can be used as programmable outputs or as additional status outputs
  • Battery backup connection for uninterrupted power delivery
  • Processor controlled battery level testing and indication
  • Intelligent charging algorithm monitors battery and AC supply ensuring optimum performance

Features

The Power Supply is capable of supplying power to a large number of smaller devices or multiple high-current devices with a combined total output of 7.5 amps. A battery charging circuit current of 500mA is also provided by the power supply.

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.

The backup battery plays an important role in power conditioning and provides a continuous source of power in the event of a power outage.

The battery test procedure uses a proprietary algorithm to prevent deep discharge and increase battery endurance. A dynamic battery test is performed every ten minutes when mains power is present, and a battery condition alarm will be generated if the battery is disconnected or shows poor capacity. Battery fault conditions will activate the associated battery trouble input. 

In addition to the dynamic battery test procedure the power supply performs a battery presence test every 60 seconds. If no backup battery is detected a battery condition alarm will be generated and the associated trouble input will be activated.

Upon reconnection of mains power the power supply automatically detects the backup battery and begins controlled charging.

The power supply is able to relay information about critical system voltages, currents and core temperature to the Protege GX integrated system controller.

The controller can then store these values in variables which can be viewed live from the Protege GX system interface and monitored on a status page or floor plan, along with logging for review at any time.

The power supply has two 50mA outputs that can operate as either programmable outputs or predefined status outputs.

While in online mode the two outputs function as programmable outputs and can be used to activate bell sirens, lighting circuits, door locks, relay accessory products and other automation points.

While in offline mode the two outputs function as status outputs. In addition to the comprehensive front panel diagnostic indicators these status outputs offer additional information that can aid in diagnosing faults and conditions.

Equipped with a factory loaded HTTPS certificate, ensuring a secure encrypted web connection straight out of the box. The default certificate provides automatic TLS encryption of data transmissions, secure identity authentication, and message signing
to assure data integrity.

The power supply features comprehensive diagnostic indicators that can aid in diagnosing faults and conditions. LED indicators on the power supply include:

  • Status indicator
  • Fault indicator
  • Power indicator
  • V1 output/V2 output indicators
  • Battery indicator
  • Temp indicator
  • Output current indicator

Utilizing the latest flash technology and high performance communication mediums, the firmware can be updated via the Protege interface.

Specifications

Ordering Information
PRT-PSU-DIN-4A Protege DIN Rail 4A Intelligent Power Supply
Power Supply
Mains Input Voltage 120VAC (90-264VAC, 47-63Hz)
Mains Input Operating Current 120VAC 2500mA (full load)
DC Output (Combined) 12.64VDC 4A Max (V1Out + V2Out total)
DC Output (Single) 12.2VDC 3A Max
Battery Charging 500mA (Typical)
Battery Low 11.75VDC
Battery Restore 12.5VDC
Communication
RS-485 Isolated Module Network
Outputs
Outputs 2 Solid State Relay Outputs, 50mA 12V Max each
Inputs
Tamper Dedicated Hardware Tamper Input
Trouble Inputs 8 (internal)
Dimensions
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 Conditions
Operating Temperature -10° to 55°C (14° to 131°F)
Storage Temperature -10˚- 85˚C (14˚ – 185˚F)
Humidity 0%-93% non condensing, indoor use only (relative humidity)
Mean Time Between Failures (MTBF) 242,266 hours (calculated using RFD 2000 (UTE C 80-810) Standard)