Sequence 3 Phase Undervoltage Relay 2 LEDs For Status Indication 200-500 VAC

Sequence 3 Phase Undervoltage Relay 2 LEDs For Status Indication 200-500 VAC

This type of detection voltage can also be called three-phase power supply monitor, phase sequence protector, over voltage protection device, etc

Features is Compact modular size Three-phase monitoring of phase sequence, phase loss Powered by the measuring circuit 2 C/O contacts 2 LEDs for status indication Phase sequence Phase loss

Mainly used for AC 50/60Hz, rated voltage below 460V, industrial three-phase 220V, 380V, 440V , 460V and other voltage levels of various fault detection, the three-phase input power supply voltage is too high, voltage is too low, lack of phase, phase failure, reverse phase (phase sequence), three-phase voltage imbalance, etc. to provide protection relay products

Widely used in distribution boxes, central air-conditioning units, electric control boxes, power distribution cabinets, cranes,Pumps fans blowers motor and compressores etc.

such as central air-conditioning compressor protection, power monitoring of various elevators, pumps, oil pumps against phase loss, reverse phase protection, etc. An indispensable protective product that maintains the normal working voltage of the equipment during operation.

Phase sequence protection device can be divided into two types: contact phase sequence protector and non-contact phase sequence protector. The former uses electromagnetic relays or AC contactors as its actuators, while the latter uses solid-state relays (thyristors, IGBTs, high-voltage VMOS transistors) as its actuators. The former uses the contacts of an electromagnetic relay or AC contactor to break the phase-sequence faulty three-phase power supply, while the latter uses an electronic component to turn off the faulty power supply. Therefore, compared with the former, the latter has the characteristics of fast response, no noise, no spark, long life, small size, and high mechanical strength. The former is relatively the latter, has a high breakdown pressure, withstand overload, low cost, etc. Features.

Phase loss protection Reverse phase protection Overvoltage protection Undervoltage protection Three-phase voltage unbalance protection Contact form: Two open and two closed, Phase loss and reverse phase protection about 2S action, Over-voltage and under-voltage protection about 8S action , Because this protector only protects against voltage and phase sequence, it can be applied to various power motors. , If you do not need one of the above protection features, please explain when ordering

♦ Approvals

• CE • CCC

♦ Technical data