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![Motor protection relay, 3 pole, 400 to 630 mA, Screw/Ring cable lug connection, LRD046](/en/images/583/LRD046/400x400/motor-protection-relay-3-pole-400-to-630-ma-screw-ring-cable-lug-connection-lrd046.png)
Order No.:
03P4259
Manufacturer SKU:
LRD046
Order No.:
03P4259
Manufacturer SKU:
LRD046
Order No.:
02P7008
Manufacturer SKU:
GV4P115B6
Order No.:
02P6706
Manufacturer SKU:
GV2LE05
Order No.:
01P3442
Manufacturer SKU:
21102
Order No.:
02P6805
Manufacturer SKU:
GV2ME213
Order No.:
03P4195
Manufacturer SKU:
LR3D16
Order No.:
02P7091
Manufacturer SKU:
GV4PEM25N
Order No.:
03P4345
Manufacturer SKU:
LRD3406
Order No.:
02P6917
Manufacturer SKU:
GV3P256
Order No.:
03P4294
Manufacturer SKU:
LRD313
Order No.:
02P7106
Manufacturer SKU:
GV4PEM80S6
Order No.:
02P6817
Manufacturer SKU:
GV2ME32TQ
Order No.:
02P6797
Manufacturer SKU:
GV2ME16TQ
Order No.:
02P6896
Manufacturer SKU:
GV3L32
Order No.:
02P7090
Manufacturer SKU:
GV4PEM25B6
Order No.:
03P4164
Manufacturer SKU:
LR2D3559
Order No.:
02P7060
Manufacturer SKU:
GV4PE50S6
Order No.:
03P4302
Manufacturer SKU:
LRD318L
Order No.:
02P7061
Manufacturer SKU:
GV4PE80B
Order No.:
80P9257
Manufacturer SKU:
3VA9467-0HC10
The purpose of a motor protection switch (MSS) is to protect electric motors from overload. This can be a form of thermal overload caused by a mechanical overload. But it is also necessary to prevent non-starting or failure of external conductors with the help of a motor protection switch. Monitoring is therefore implemented thermo-mechanically, thermo-electrically or electronically.
Motor-protective circuit breakers are used, for example, with three-phase motors. They always have an overcurrent and a short-circuit current release device, and in some cases also an undervoltage release.