Product ID: 3UA, LR2-D

Thermal Relay

LR2-D series of thermal relay can be used in the cricuit 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 different mechanism and temperature compensation and can be pluged in LC1-D series AC contactor. At present, it is the most advanced thermal relay in the world.
Rated insulation voltage 660V.
Rated working current 25,36,93A separately.
The regulator seal of rated setting current and setting.
LR2-D13
LR2-D1301 0.1-0.16A
LR2-D1302 0.16-0.25A
LR2-D1303 0.25-0.40A
LR2-D1304 0.40-0.63A
LR2-D1305 0.63-1A
LR2-D1306 1-1.6A
LR2-D1307 1.6-2.5A
LR2-D1308 2.5-4A
LR2-D1310 4-6A
LR2-D1312 5.5-8A
LR2-D1314 7-10A
LR2-D1316 9-13A
LR2-D1321 12-18A
LR2-D1322 17-25A
LR2-D23
LR2-D2353 23-32A
LR2-D2355 28-36A
LR2-D33
LR2-D3353 23-32A
LR2-D3355 30-40A
LR2-D3357 37-50A
LR2-D3359 48-65A
LR2-D3361 55-70A
LR2-D3363 63-80A
LR2-D3365 80-93A
3UA thermal relay is suitable for using in power system with AC 50Hz, rated operation voltage up to 660V and 1000V, in main circuit, 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 overleaping arrangement, for easy selecting by the customers from -25ºC to +55ºC 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.
3UA50
Rated operating current: 12. 5A
Rated insulation voltage: 660V
Current setting range: 0. 1A to 12. 5A
3UA52
Rated operating current: 25A
Rated insulation voltage: 660V
Current setting range: 0. 1A to 25A
3UA54
Rated operating current: 32A
Rated insulation voltage: 660V
Current setting range: 4A to 32A
3UA58
Rated operating current: 80A
Rated insulation voltage: 1000V
Current setting range: 16A to 80A
3UA59
Rated operating current: 63A
Rated insulation voltage: 660V
Current setting range: 0. 1A to 63A
3UA62
Rated operating current: 180A
Rated insulation voltage: 660V
Current setting range: 55A to 180A
3UA66
Rated operating current: 400A
Rated insulation voltage: 660V
Current setting range: 80A to 400A
3UA68
Rated operating current: 630A
Rated insulation voltage: 660V
Current setting range: 320A to 630A

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