Crompton protection relays

1 company | 15 products
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over-voltage protection relay
over-voltage protection relay
PAO series

Trigger voltage: 24, 240 V

... level Imax, the protector will trip and the red LED will illuminate indicating the fault condition. During the time delay period the red LED will flash for the set time (t) before the relay energises ...

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Crompton Instruments
over-voltage protection relay
over-voltage protection relay
PAD series

Trigger voltage: 24 V - 240 V

... output relays • Three module version Under or Over Current - PAP/V • Three-phase, three/four-wire • Continuously monitors to provide under or over protection (set level In) • Monitors three-phase current • ...

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Crompton Instruments
under-current protection relay
under-current protection relay
PVU/Z series

Trigger voltage: 87 V - 416 V

... set point level Umin, the protector will trip and the red LED will illuminate to indicate the fault condition. During the time delay period the red LED will flash for the set time (t) before the relay ...

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Crompton Instruments
under-voltage protection relay
under-voltage protection relay
PVK series

Trigger voltage: 100 V - 480 V

... set point level Umin, the protector will trip and the red LED will illuminate to indicate the fault condition. During the time delay period the red LED will flash for the set time (t) before the relay ...

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Crompton Instruments
over-current protection relay
over-current protection relay
PAP series

Trigger voltage: 24, 240 V

... level Imin, the protector will trip and the red LED will illuminate indicating the fault condition. During the time delay period the red LED will flash for the set time (t) before the relay de-energises output ...

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Crompton Instruments
voltage protection relay
voltage protection relay
PVV series

Trigger voltage: 87 V - 416 V

... tripping if the measured signal is noisy or unstable. In case the measured voltage moves outside the set point limit the protector trips, illuminating the red LED indicating a fault condition. An adjustable time delay ...

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Crompton Instruments
over-voltage protection relay
over-voltage protection relay
PVB series

Trigger voltage: 87 V - 416 V

Under and Over Voltage • Continuously monitors to provide under and over protection (set level Umin and Umax) • Two output relays • Three module version

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Crompton Instruments
under-frequency protection relay
under-frequency protection relay
PHD series

Trigger voltage: 87 V - 550 V

... close to the nominal set point, both red LEDs are off with the Under relay energised and the Over relay de-energised. Should the supply fall below the opening threshold, both relays ...

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Crompton Instruments
phase sequence protection relay
phase sequence protection relay
PVR series

Trigger voltage: 150 V - 416 V

The phase sequence and phase failure protector trip relay is designed to monitor the correct phase rotation or sequence of a three-phase supply system. It provides protection against ...

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Crompton Instruments
power protection relay
power protection relay
PAT - PAS series

Trigger voltage: 100 V - 480 V

The Reverse Power protector trip relay monitors a single- or three-phase supply for reverse power and trips a relay if it detects reverse power (I x cos Φ) over a set limit. The relay ...

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Crompton Instruments