QR Systems MR-1 addressable relay module
Single-channel addressable relay module: 1 dry-contact output up to 250 V AC / 30 V DC, powered from the PLS loop, 1 address, tamper, 80×32×21 mm.
Specifications
- Type
- addressable relay module, single-channel
- Interface
- PLS (addressable loop)
- Address slots
- 1
- Outputs
- 1 dry contact
- Switching current
- 0.3 A at 250 V AC / 2 A at 30 V DC
- Power supply
- from the PLS loop
- Current consumption
- 0.3 mA standby / 28 mA maximum
- Operating temperature
- −10…+55 °C
- Protection rating
- IP40
- Dimensions
- 80×32×21 mm, 30 g
Description
The QR Systems MR-1 relay module is a single-channel addressable device for controlling external equipment within a QR Systems addressable analogue fire alarm system. The module connects to ShU-DU smoke exhaust fan control cabinets and other equipment driven by a dry contact: ventilation, smoke extraction and access control systems. Communication with the control panel and the KS-02-250 system controller runs over the wired PLS addressable loop, which also powers the module, so no separate power cable is needed. The relay output switches alternating current up to 250 V and direct current up to 30 V. In the system the module occupies one address slot and has an LED indicator, a Test button and a housing tamper switch.
Advantages
- 80×32×21 mm and 30 g — fits in tight spaces next to the controlled equipment
- Switches 250 V AC and 30 V DC — one module for different actuators
- Switching current 0.3 A at 250 V and 2 A at 30 V — direct control of a cabinet or load relay
- Powered from the PLS loop, 0.3 mA in standby and 28 mA maximum — simple installation and less cable
- Tamper and LED indication — on-site monitoring of housing opening and operation
- One address slot — saves the panel's address capacity
Applications
- Controlling ShU-DU cabinets of smoke exhaust fans on a fire signal
- Shutting down general ventilation in case of fire
- Releasing access control systems on evacuation routes
- Controlling any dry-contact-driven equipment within a QR Systems system
Frequently asked questions
Which panels does the MR-1 work with?
Does the module need a separate power supply?
What load can the relay output handle?
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