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DIN-Rail Dual Isolator

Product code: 55000-802APO

55000-802APO - DIN-Rail Dual Isolator
The DIN-Rail Dual Isolator provides two independent isolators which sense and isolate short circuits on Discovery and XP95 loops and spurs.
Full Details
Operation

Under normal operating conditions, a low impedance is present between the two negative terminals of each isolator channel so that power and signals are passed to the next base in line. If a short-circuit or abnormally low impedance occurs across the loop, the fall in voltage is sensed and the isolator isolates the negative supply in the direction of the fault. In this condition, the yellow LED of the affected channel will be illuminated. the isolated section of loop is tested using a current pulse every five seconds. When the short-circuit is removed, the power will automatically be restored. The two isolator channels are not interconnected internally, and operate completely independently of one another.

Mechanical Construction

The DIN-Rail Isolator is supplied in a standard housing which is clipped onto a standard 35mm DIN Rail (DIN46277) or fixed directly to the enclosure using two 4mm screws. Connections are made via plug/in terminal blocks which accept wires up to 2.5mm2. Two yellow LEDs - one per channel - are visible through the top cover of the enclosure. When a channel is in an isolating condition, the associated LED is illuminated continuously.

Product Information

The DIN-Rail Dual Isolator provides two independent isolators which sense and isolate short circuits on Discovery and XP95 loops and spurs.

Key Features

Loop-powered Polarity sensitive Up to 20 detectors can be installed between isolators Allows fully isolated spurs

General
Warranty10 year
Electrical
Isolation voltage (max)14V dc
Status indicator - IsolateYellow
Current consumption (at 18 V DC)27μA
Current consumption (at 28 V DC)47μA
Environmental
Humidity (min)0% RH
Humidity (max)95% RH
Operating temperature (min)-20°C
Operating temperature (max)60°C
Operating temperature-20 to 60°C
Storage temperature (min)-30°C
Storage temperature (max)80°C
Storage temperature-30 to 80°C
Conformance
Approvals
  • CPD
  • FG
  • LPCB
Mechanical
Weight90g
ColourGreen
Product length107mm
Product width110mm
Product depth20mm
How to Order

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Full details of our service standards can be downloaded here.

Existing customers

Please email your order to us at: ukorders@apollo-fire.com or tel: 023 9245 6530.

New customers

Please email your order to us at: sales@apollo-fire.com or tel: 023 9244 2700.

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Please note…

Remember to quote your account number and purchase order number on any order correspondence.

All orders must be over £50.00 (excluding carriage). Any orders received under the minimum order value will be returned to sender for revision.