The IP-140-d has been designed to protect sensitive process control equipment and
instrumentation from proximity lightning strikes and other
surge sources, this multi-stage design utilizes gas ionization-based
technology as primary protection stage. A secondary stage
incorporates a high-speed, transient voltage suppression (TVS)
circuit. The final stage employs ultra-fast, thermal-based circuit
breakers with auto-reset capability. This final stage not only support s
the primary and secondary stage protection, but also provides
equipment protection from mis-wiring or equipment failure, which
may introduce high voltage or current onto the control loop.
DIN rail mount. DIN rail clip supplied.
Primary Stage: Gas ionization, crowbar action
Maximum Current: 20,000 amps\460 joules
Response TimeP: 1μs\100 volt rise
Surge Life min.: 400 shots at max. current
Secondary Stage: Transient Voltage Suppressor
Maximum Current: 70 amps
Response Time: <1ns
Clamping Voltage: 36 volts
Surge Life: Unlimited
Final Stage: Thermal Type, ultra fast,
auto-reset circuit breakers
Maximum Current: 168 ma
Response Time: <0.5 μsec.