Three-phase protection relay LPRD/2

under-voltagephaseDIN rail

LPRD/2 - Under voltage with restart delay - Selectable nominals for popular 3-wire or 4-wire supply voltages - Detects incorrect phase sequence, phase and neutral loss - Adjustable Trip level and Time delays - DPDT Relay output - 17.5mm wide, DIN Rail mount - UL Listed The product monitors it’s own three-phase supply and can be set for either 3-wire or 4-wire monitoring. For the output relay to energise, all phases (and neutral – if applicable) must be present, phase sequence correct and measured phase voltages above the set trip level. If any of these conditions are not met, the relay will de-energise. An adjustable restart delay allows the user to set a period of time before the relay is allowed to re-energise. Specification - Monitoring function: Under voltage - Monitored supply voltages: (3-wire) 380V, 400V or 415VAC/(4-wire) 220V, 230V or 240VAC - Under trip level: 75 – 95% of selected nominal - Hysteresis: ≈2% - Time delay: 0.2 – 10s (Restart delay: 1s – 5m) - Output: DPDT 5A @ 250V (AC1) - Dimensions(mm): W:17.5 x H:89 x D:66.5