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A.C. Current Protector Relays

262 series A.C. current protector relays provide continuous surveillance. When the current value moves outside the zone limit, the relay operates giving double pole change-over contacts for alarm, control or tripping functions. The unit can be used to protect against over current or under current conditions for load detection, monitoring of electric heating systems, motors etc. For 3 phase systems, the sequence of connection is not important: simply connect each phase (C.T. secondary) to any pair of terminals marked. An illuminated red LED indicates when the relay is energized.

A.C. Voltage Protector Relays

The 262 series A.C. voltage protectors provide continuous surveillance of the monitored circuit. When the measured voltage moves outside the setpoint limit, the relay will operate giving an alarm or initiation signal. The protector can be used to protect against under or over voltage, to start up stand-by generators, to operate mains failure units, for switching standby hybrid supplies, protecting computer supplies and similar applications where close regulation is required. The 3 phase, 3 or 4 wire models, monitors all of the phases. An illuminated red LED indicates when the relay is energized.

Frequency Protector Relays

The 262 series frequency protector relays will operate giving an alarm, control or tripping signal when the frequency moves outside the setpoint limit. Since the speed of a genset determines the A.C. power frequency this unit can be used to protect A.C. generator plant against overspeed or underspeed. Typical applications include dieselgenerator sets, standby supplies for industrial, hospital or marine use, mains supplies, computer supplies and other control gear. An illuminated red LED indicates when the relay is energized.

A.C. Current Protector Relays

A.C. Voltage Protector Relays

Frequency Protector Relays

Features:

Alarm, control or tripping functions
LED indication of relay and auxiliary power status
User accessible reset button option
User selectable setpoint adjustment with optional tamper proof cover
5A two pole change over relay

Protection against over or under current
Load detection and monitoring

Protection against under and over
voltage

Protection against over or under speed

Benefits:

20 second time delay option
Latching option available
Energize/de-energize function options
Nuisance tripping avoidance
Simple installation and operation

Start up of standby generators
Operation of mains failure units

Switching of standby hybrid supplies

Applications:

Switchgear

Distribution systems
Generator sets
Control panels
Process control
Motor protection
Transformers
Overload protection

Marine panels
Transformers
Standby supplies

Compliant With:

EMC, LVD, BS5458, BSEN61010