XP95 DIN-Rail Dual Isolator

Product Overview

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

The unit is intended for use in systems using the XP95 or Discovery protocols.


  • The isolators are loop-powered and are polarity sensitive. A maximum of twenty XP95 detectors may be installed between isolators.
  • When a short circuit condition exits on either sie of the osolator, its yellow LED is illuminated.


Maximum Supply Voltage 30 V DC + 9V protocol pulses
Volt Drop  
At 50mA 10m V
At 500mA 100m V
Switch-On Voltage Input 17.5V, Output 15V
Switch-On Time (to step), 2kΩ load at 18V 30mS
Isolation Time, 2kΩ load at 18V 20μS
Isolating Voltage 14 V DC
Isolation Indicator Yellow LED, lit continuously in isolation condition
Current Consumption  
At 18V 27μA
At 28V 47μA
At 18V and Adjacent Sector Isolated 4mA
Maximum Line Current  
Non-Isolating Continuous 1.0A
Transition into Isolation 3.0A
On Resistance 0.2Ω
Emission To BS EN 50081-1
Immunity To BS EN 50130-4
Operating Temperature -20°C to +69°C
Storing Temperature -30°C to +80°C
Relative Humidity (No Condensation / Icing) 0% – 95%
Design Environment Indoor Use Only
Weight 90 grams
Dimensions 100 x 107 x 20mm

Item Numbers

55000-802-AMP DIN Rail Mount Isolator