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Monitoring Relays There are 78 products.

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Showing 1 - 12 of 78 items
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    DLA71 is relay made to alternate 2 or 3 pumps in a multiple pump system. In case of need (i.e.: overflow) the second, or even the third pump can be activated together with the first one. In case more than one pump is required to start at the same time, the pumps start 10 s after the previous to avoid big inrush current. The LED indicates the state of...

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    DLA73 is relay made to alternate 2 pumps in a multiple pump system. In case of need (i.e.: overflow) the second pump can be activated together with the first one. The unit actives the third output relay (i.e.: for alarm signal) by closing one indipendent input contact. In case more than one pump is required to start at the same time, the pumps start 10 s...

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    DUA01 and PUA01 are precise AC/DC over voltage monitoring relays. They can also be used as 1-phase or 3-phase over current monitoring relays when connected with MI or MP current transformers. Owing to the built-in latch function, the ON-position of the relay output can be maintained. The red LED indicates the alarm status. GET A QUOTE

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    DUA52 is a voltage monitoring relay that measure its own power supply. The measuring ranges are 8-28 VDC and 38- 58 VDC. It has separate potentiometers for setpoint and hysteresis. Typical applications are monitoring of backup batteries, batteries on diesel generator sets and the like. GET A QUOTE

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    1-Phase relay for detection of incorrect mains voltage. This unit allows to stop incorrect power supply voltage when different from the desired one. Power supply range from 208 to 480 VAC plus selection of the different possible nominal voltages. For mounting on DIN-rail. Housing 17.5 mm wide suitable both for back and front panel mounting. GET A QUOTE

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    DUB01 and PUB01 are precise TRMS AC/DC over or under voltage (selectable by DIP-switch) monitoring relays. Owing to the built-in latch function, the ON-position of the relay output can be maintained. Inhibit function can be used to avoid relay operation when not desired (maintenance, transitions). The LED’s indicate the state of the alarm and the...

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    DUB02 and PUB02 are precise TRMS AC window voltage monitoring relays. The relays monitor their own power supply which is selectable by DIP-switch (24, 115 or 230 VAC). The advantage of using the latch function is that the relay can be kept energized even after the end of the alarm condition. Inhibit function can be used to avoid relay operation when not...

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    DUB03 and PUB03 are precise TRMS AC/DC over or under voltage (selectable by DIP-switch) monitoring relays. Owing to the built-in latch function, the ON-position of the relay output can be maintained. The LED’s indicate the state of the alarm and the output relay GET A QUOTE

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    DUB71 is a precise TRMS AC/DC over or under voltage (selectable by DIPswitch) monitoring relay. Owing to the built-in latch function, the ON-position of the relay output can be maintained. Inhibit function can be used to avoid relay operation when not desired (maintenance, transitions). The LED's indicate the state of the alarm and the output relay....

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    DUB72 is a DC double under-voltage-thresholds monitoring relay, with two independent relays, one for each of the 2 thresholds, measuring the level of its power supply. One of the thresholds, the one associated with the lower rating relay, can be used as a pre-alarm signal; the other one is associated with a highpower 20A-rated relay which can be used to...

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    DUC01 and PUC01 are precise TRMS AC/DC over+under, over+over or under+under voltage (selectable by DIP-switch) monitoring relays. The voltage levels are adjustable separately and have their own time delay. Owing to the built-in latch function, the ON-position of the relay output can be maintained. Inhibit function can be used to avoid relay operation...

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    DUA01 and PUA01 are precise AC/DC over voltage monitoring relays. They can also be used as 1-phase or 3-phase over current monitoring relays when connected with MI or MP current transformers. Owing to the built-in latch function, the ON-position of the relay output can be maintained. The red LED indicates the alarm status. GET A QUOTE

Showing 1 - 12 of 78 items