Protection Relays & Systems

Protection relays detect abnormal operating conditions in an industrial system and may trigger an alert or isolate the offending device from the system. Common detection functions include; Arc-flash, temperature monitoring, ground fault, over-current, over-voltage, reverse power flow, over-frequency, under-frequency and phase loss, sequence or imbalance.

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Littelfuse Inc. MPU-32-02-00

MPR W/TIA-232/DEVICENET

3427.29

Littelfuse Inc. MPU-32-01-01

MPR WITH TIA-232/TIA-485

3395.15

Littelfuse Inc. MPU-32-01-00

MPR WITH TIA-232/TIA-485

3395.15

Littelfuse Inc. SE-330HV-20-01

NGR MONITOR HV LVPS NC K4

3366.66

Littelfuse Inc. SE-330HV-20-00

NGR MONITOR HV LVPS

3366.66

Littelfuse Inc. SE-330-20-11

NGR MONITOR 48VDC NC CE/C-T

3338.55

Littelfuse Inc. SE-330-20-10

NGR MONITOR 48VDC CE/C-T

3338.55

Littelfuse Inc. SE-330AU-20-01

NEUTRAL-EARTHING-RES MON 48VDC N

3333.97