52000 Series Surge protection panel with replaceable surge modules 120-7M3 (3) and 8120-GN (1). 3-phase WYE 120 or 208 V voltage configuration. 50 or 60 Hz frequency. 40 mm MOV design surge technology. 30 A, 120 or 208 V recommended circuit breaker rating. NEMA-12 enclosure type. -20 to 40°C operating temperature. Parallel-hardwired, feed-through dual wire terminal block, accepts up to 3 AWG wire connection type. 7-mode protection. 100 kA (200 kA) maximum surge current, per mode (per phase). 100 kA short-circuit current rating. 20 kA nominal discharge current rating. -20 to -40 dB at 5 kHz to 10 MHz noise rejection. Real time protection status LEDs and audible alarm diagnostics. Dry contact leads-NO or NC form C-rated at 7 A at 240 VAC or 30 VDC remote monitoring. Surge protection devices can be used individually or as part of a coordinated application strategy, to protect sensitive electronic equipment in industrial, commercial and residential locations, from the stress and degradation inflicted by voltage transients. Surge protection devices divert damaging voltage transients or surges, away from electronic equipment. Transients are diverted away from sensitive micro circuitry, providing protection against catastrophic failure, costly downtime and data disruptions.