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Protege Half DIN Rail
8 Output Expander


The Protege Half DIN Rail 8 Output Expander extends the Protege system with an additional 8 outputs for automation.

Featuring high current Form C relays, the output expander provides extensive hardware advancements that allow flexible and structured control of building systems including lighting and HVAC.

  • 8 Form C relays capable of switching resistive loads up to 5 amps
  • Compact two-tier half DIN rail module design
  • Ideal for connection in an electrical switch room to control signage, lighting and building automation


Extending the Protege System with onboard local outputs allows convenient, cost effective expansion with the additional benefits:

  • 8 multiple-function outputs available for use in any programmable output configuration
  • Outputs can be configured to automatically turn on or resume their previous state upon restoration of power or communication failure
  • Address configuration is achieved using the address programming feature of the Protege System Controller.

The output expander has 8 programmable Form C relay outputs which can be used to activate bell sirens, lighting circuits, door locks, relay accessory products and other automation points.

Device power is supplied from a 12VDC input. Ultra low current requirements ensure cost-effective power distribution.

The additional wall mounting feature provides absolute convenience and flexibility in module positioning.

The compact two-tier half DIN rail module design occupies less valuable real estate to provide more control in less space.

A single RS-485 communication interface port used for all network communication functions and interconnection to other modules.

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

  •  Status indicator
  • Fault indicator
  • Power indicator
  • Output indicators

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


Ordering Information
PRT-HPX8-DIN Protege Half DIN Rail 8 Output Expander
Power Supply
DC Input Voltage 11-14VDC
DC Output Voltage 10.83-14.0VDC 0.7A (typical) electronic shutdown at 1.1A
Operating Current 80mA (typical)
Total Combined Current* 3.25A (max)
Low Voltage Cutout 8.7VDC
Low Voltage Restore 10.5VDC
RS-485 Module Network
Programmable Outputs 8 Form C relays - 7A N.O/N.C. at 30 VAC/DC resistive/inductive
Dimensions (L x W x H) 78 x 90 x 60mm (3.07 x 3.54 x 2.36")
Net Weight 240g (8.5oz)
Gross Weight 300g (10.6oz)
Operating Conditions
Operating Temperature UL/ULC 0˚ to 49˚C (32˚ to 120˚F) : EU EN -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) 587,177 hours (calculated using RFD 2000 (UTE C 80-810) Standard)

* The Total Combined Current refers to the current that will be drawn from the external power supply to supply the Output Expander and any devices connected to the expander's outputs. The Auxiliary outputs are directly connected via electronic fuses to the N+ N- input terminals, and the maximum current is governed by the trip level of these fuses.

Regulatory Notices

This equipment carries the RCM label and complies with EMC and radio communications regulations of the Australian Communications and Media Authority (ACMA) governing the Australian and New Zealand (AS/NZS) communities.

Protege systems conform to AS/NZS 2201.1:2007 Class 5 intruder alarm systems standards for the construction, operation, performance and installation of intruder alarm equipment and systems installed in client's premises.

Conforms where applicable to European Union (EU) Low Voltage Directive (LVD) 2014/35/EU, Electromagnetic Compatibility (EMC) Directive 2014/30/EU, Radio Equipment Directive (RED)2014/53/EU and RoHS Recast (RoHS2) Directive: 2011/65/EU + Amendment Directive (EU) 2015/863.

This equipment complies with the rules, of the Official Journal of the European Union, for governing the Self Declaration of the CE Marking for the European Union as specified in the above directives.

This equipment carries the UKCA label and complies with all applicable standards.

  • UL1610 for Central-Station Burglar-Alarm Units
  • UL294 for Access Control System Units
  • CAN/ULC S304 for Signal Receiving Centre and Premise Burglar Alarm Control Units
  • CAN/ULC S319 for Electronic Access Control Systems
  • CAN/ULC S559 for Fire Signal Receiving Centers and Systems


his is a Class A digital device that meets all requirements of the Canadian Interference-Causing Equipment Regulations.


FCC Rules and Regulations CFR 47, Part 15, Class A.

This equipment complies with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference; (2) This device must accept any interference received, including interference that may cause undesired operation.