Thermal Relay

A) LR1-D series thermal relay is suitable for thermal protection in the circuit with AC 50Hz or 60Hz, voltage up to 660V, motor power up to 45Kw or less. It has differential attachment and automatic temperature-compensating function. It can be fixed on to contactor and can also be fixed independently.
The product is made in accordance with IEC292-1.

B)LR2-D Thermal Relay This series of thermal relay can be used in the circuit of 50Hz or 60Hz,rated insulation voltage 660V,rated current 0.1-93A for protecting the phase break when the electric motor is overload. The relay has diffierent mechanism and temperature compensation & can be pluged in LC1-D series AC contactor.At present,it is the most advanced thernal relay in the world.

C)TH-K SERIES The thermal overload relays are suitable for overload protoction of AC motor operated on 8-bours duty or uninterrupted duty.
The overload protected AC motor with frequency 50Hz,voltage up to 660V,current up to 40A.
Several functions provided by these relays are phase-failure protection, temperature compensation, ON/OFF inidication and manual/automatic reset. The relays comply with IEC292-1 standard.

D)T Thermal Relay The relay is suitable for using in the power circuits up to rated voltage 660V,rated current 500A 50Hz or 60Hz for overload and loss of phase protection of three phases iniduction motor and often combined with B series AC contactor into magnetic starter.
T16 & T25 thermal relays have a friction trip operating mechanism with loss of phase running protection, pulback spring trip operating mechanism (jump mechanism ) with loss of phase protection for T85 & TSA45, backpack jump mechanism for T170 & T105,main circuit with instrument transformer jump mechanism with loss of phase for T250 & T370.

E)3UA thermal relay is suitable for using in power system with AC 50Hz, rated operation voltage up to 660V and 1000V, in main circutit, current from 0. 1A to 630A. It is used to protect AC three-phase asynchronous motor against overload and open-phase.

The current setting value can be regulated and the setting current values of many thermal elements are intercrossing overlepping arrangement, for easy selecting by the customers from -25 degree to +55 degree air temperarature as the products have temperature compensating. The relays have the test push-button for breaking NC contacts, the operating indication and free trip characteristics. The items conform to IEC292-1, IEC337-1&VDE0660.

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