Vol./Cur./Freq. all-in-one_Shanghai Sieland Electric Co., Ltd

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Time relays

Power-on delay relay

Power-off delay relay

On-off delay relay

Power-on pulse relay

Power-off delay relay (without auxiliary power supply)

Cycle relay

Flash relay

Star-Delta relay

Multi-function time relay

Phase sequence/absence relay

Three phase monitoring relays

Three phase over-voltage monitoring relay

Three phase under-voltage monitoring relay

Three phase under/over voltage monitoring relay

Three phase unbalance monitoring relay

Three phase under/over voltage, unbalance monitoring relay

Phase sequence/absence relay

Two phase monitoring relays

Voltage monitoring relays

Under-voltage monitoring relay

Over-voltage monitoring relay

Under/Over voltage monitoring relay

Window mode voltage monitoring relay

Under/Over voltage monitoring relay (self-power supply)

Current monitoring relays

Under-current monitoring relay

Over-current monitoring relay

Under/Over current monitoring relay

Window-mode current monitoring relay

Frequency monitoring relay

Vol./Cur./Freq. all-in-one

More classification

Vol./Cur./Freq. all-in-one

Model: Customized

In order to meet some special requirements, we can integrate frequency monitoring function into voltage monitoring relays or current monitoring relays.

Mainly inclusive of the following:

1. Three phase monitoring relays + frequency monitoring function (40 ~ 70Hz)

2. Single phase monitoring relays + frequency monitoring function (40 ~ 70Hz)

3. Current monitoring relays + frequency monitoring function (40 ~ 70Hz)

Please contact us for detail.