This is designed to monitor 3-phase supplies and to protect
motors and other loads against the faults listed below.
Monitoring of rotational direction of phases
Detection of complete failure of one or more of the phases
Undervoltage detection (-10%)
Overvoltage detection (+10%)
Detection of phase asymmetry (imbalance) (±10%)
The relay operates if any of the conditions occours.
The relay releases if any of the conditions fails.
There is a Time Delay between the relay action and the condition occours (except rotational direction of phases error)
to avoid very short interruptions or other momentary failures.
A selector switch allows selection of an adjustable time delay from 0.1 s to 10 s.
When the supply returns towards its rated value, the relay is re-energised according to the hysteresis value (5%)
SPECIFICATION
Output :1 FORM C(SPDT) 10A 250VAC 1/2HP
Supply voltage: 3 Phase AC 50/60Hz 300V-480V can be setted
Adjustalbe Time Delay: 0.1-10 sec
Mechanical Life: 10,000,000 operations.
Electrical Life: 100,000 operations at rated load.
Ambient Temperature: -10ºC to +60ºC
Ambient Humidity: 45~85% RH
Mounting: Directly at DIN rail.
Weight Approx.: 100g
Indications:
Green LED: indicates relay state.
Red LED: overvoltage fault. undervoltage fault. phase asymmetry.
phase failure or incorrect rotational direction of phases.
Yueqing Winston Electric Co., Ltd.Is not only an exporting company, but also a professional manufacturer in China.We have our own production base.The products we professionally deal with are switching power supplies, sensors, relays, voltage stabilizers, AC contactors, circuit breakers, distribution boxes, industrial plugs & sockets and others.Since we are a manufacturer & exporter, we are sure that we can best support our customers with high quality products and the most competitive prices.
Our company is located in Wenzhou - the Electric Capital of China.We specialize in developing, manufacturing and distributing low voltage & high voltage electrical products.
We are an ISO9001:2000 certified company.We have obtained many certificates, such as CCC, CE, CB, GS and RoHS.Stability, expertise and technological innovation are the core stones of our business strategy.
Aiming at reliable product quality and the highest customer satisfaction, we are consistently deepening enterprise inner reform and fully carry out a quality guarantee system.With special cultivation of employees, high investment on production facilities and R&D as well as a wide range of products, we advocate "technology innovation, business honesty and trust and quality first" as our basic principle, trying to develop into a world-class electrical manufacturer with constant efforts.
