Motor Protection

Motor protection is used to prevent damage to an electrical motor and to reduce the incidence of problems such as internal faults and abnormal conditions. The type of motor protection you choose will depend on the size of motor you need it for and the voltage level required.

What does motor protection do?
Motor protection units protect against various types of damage that can occur within a motor, such as problems arising from vibration or excess torque. Motor protection units also take care of other mechanical limitations like startup frequency management, and control operating characteristics like voltage, phases and short-circuit current availability.

What is motor protection used for?
Motor protection is mainly used to manage and protect synchronous and asynchronous motors. They can also be used for circuit breakers (devices used for stopping the electric current as a safety measure) and motors in a variety of drive applications, such as motor drives for pumps, fans, compressors, mills and crushers.

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Description Price Motor Protection System Motor Protection Component Range Number of Inputs Output Sensing Type Supply Voltage Current Rating Overall Length Overall Width Overall Depth Minimum Operating Temperature Maximum Operating Temperature CAD Drawing
RS Stock No. 745-8030
Mfr. Part No.HPL500
BrandUnipower
£520.92
Each
Units
- Load Monitor - - 3 Current Transformer 100 → 400 V ac 40 A - - - - - -
RS Stock No. 245-5941
Mfr. Part No.HPL110
BrandUnipower
£412.30
Each
Units
- Load Monitor - - - - 380 → 440 V 8 A 56mm 75mm 110mm -15°C +50°C -
RS Stock No. 261-5676
Mfr. Part No.LT3SE00M
£119.34
Each
Units
- - TeSys - - - - - - - - -25°C +60°C -
RS Stock No. 505-9631
Mfr. Part No.3UF7000-1AB00-0
BrandSiemens
£319.11
Each
Units
SIMOCODE Pro C Basic Unit - 4 3 Thermistor 24 V dc - 111mm 45mm 95mm -25°C +60°C 3D CAD Model
RS Stock No. 392-7172
Mfr. Part No.3RN1011-1CK00
BrandSiemens
£68.27
Each
Units
- Evaluation Unit - - - Thermistor 110 V ac, 230 V ac - 102mm 22.5mm 91mm -25°C +60°C 3D CAD Model
RS Stock No. 505-9568
Mfr. Part No.3UF7000-1AU00-0
BrandSiemens
£229.76
Each
Units
SIMOCODE Pro C Basic Unit - 4 3 Thermistor 110 → 240 V ac/dc - 111mm 45mm 95mm -25°C +60°C 3D CAD Model
RS Stock No. 793-4105
Mfr. Part No.APM110
BrandUnipower
£286.92
Each
Units
- Load Monitor - 3 2 Current Transformer 250 V ac 80 A 70mm 86mm 58mm -15°C +50°C -
RS Stock No. 362-2861
Mfr. Part No.EMPR115L000
BrandABB
£503.27
Each
Units
EMPR Motor Controller - - - Current Transformer 110 → 120 V 5 A ac, 5 A dc 66mm 76mm 117.5mm -10°C +60°C -
RS Stock No. 245-5957
Mfr. Part No.HPL110A
BrandUnipower
£455.69
Each
Units
- Load Monitor - - - - 120 → 575 V ac 8 A 72mm 72mm 112mm -15°C +50°C -
RS Stock No. 655-0157
Mfr. Part No.SS074+SS071
£429.45
Each
Units
EL-FI Load Monitor - - - Current Transformer 380 → 500 V 0.4 → 10 A 90mm 45mm 115mm - - -
RS Stock No. 125-0866
Mfr. Part No.KM-N2-FLK
BrandOmron
£193.50
Each
Units
- Power Monitor - 4 4 Current Transformer 100 → 277 (L-N) V ac, 173 → 480 (L-L) V ac 6 A 90mm 90mm 65mm -25°C +55°C -
RS Stock No. 655-0141
Mfr. Part No.SS074+SS073
£401.48
Each
Units
EL-FI Load Monitor - - - Current Transformer 380 → 500 V 10.1 → 25 A 90mm 45mm 115mm - - -
RS Stock No. 235-3255
Mfr. Part No.LPM.400L000
BrandABB
£389.54
Each
Units
- Load Monitor - - - Current Transformer - 5 A 84mm 66mm 116mm - - -
RS Stock No. 285-4607
Mfr. Part No.PAIR400L000
BrandABB
£354.28
Each
Units
PAIR Load Monitor - - - Current Transformer 380 → 415 V 5 A - - - -10°C +60°C -
RS Stock No. 505-9681
Mfr. Part No.3UF7200-1AA00-0
BrandSiemens
£132.29
Each
Units
SIMOCODE Operator Keypad - - - - - - 36mm 96mm 44mm -25°C +60°C 3D CAD Model
RS Stock No. 793-4111
Mfr. Part No.PCU D10
BrandUnipower
£219.84
Each
Units
- Load Monitor - 3 2 - 10 V dc 20 mA 72mm 72mm 70mm -15°C +50°C -
RS Stock No. 793-4115
Mfr. Part No.APM382
BrandUnipower
£658.49
Each
Units
- Load Monitor - 6 2 Current Transformer 24 V dc 130 A 102mm 86mm 58mm -15°C +50°C -
RS Stock No. 793-4109
Mfr. Part No.APM110E
BrandUnipower
£296.24
Each
Units
- Load Monitor - 3 2 Current Transformer 230 V ac 80 A 70mm 86mm 58mm -15°C +50°C -
RS Stock No. 793-4102
Mfr. Part No.APM10
BrandUnipower
£186.30
Each
Units
HC Load Transducer - 4 1 Thermistor 24 V dc 5 → 60 A 86mm 36mm 58mm -15°C +50°C -
RS Stock No. 125-0867
Mfr. Part No.KM-N3-FLK
BrandOmron
£144.86
Each
Units
- Power Monitor - 4 4 Current Transformer 100 → 240 V ac 6 A 96mm 96mm 64mm -25°C +55°C -
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