This is a multi-functioning product which provides both industrial surge suppression and effective EMI / RFI noise filtering for all types of control loop applications. The surge suppression portion of the circuit is designed to protect the sensitive process control equipment and instrumentation from proximity lightning strikes and other surge sources. The multi-stage design utilizes gas ionization-based technology as primary stage of protection. The secondary stage incorporates a high-speed transient voltage suppression (TVS) circuit. A final stage employs ultra-fast thermal-based circuit breakers with an auto-reset capability. This final stage, not only supports the primary and secondary stages of protection, but also provides equipment protection from mis-wiring or equipment failure that may introduce high voltage or current into the control loop. EMI/RFI noise filtering is accomplished by a broadband passive noise filter. The proprietary common mode filter circuit provides an effective elimination of undesirable noise and EMI/RFI from 0.1 Hz to 50 Mhz.SURGE PROTECTION
Type: Multistage
Primary Stage: Gas ionization, crowbar action
Maximum Current: 20,000 amps460 joules
Response Time: 1μs100 volt rise
Surge Life min.: 400 shots at max. current
Secondary Stage: Transient Voltage Suppressor
TVS bidirectional
Maximum Current: 70 amps
Response Time: <1ns
Clamping Voltage: 36 volts
Surge Life: UnlimitedEMI / RFI N0ISE FILTER
Type: Passive, broadband,
common mode
Range: 0.1Hz to 50 MHz