Circuit Trips

Circuit trips react to ground faults, short circuits or thermal overload in circuit breakers. A circuit trip opens the circuit in the event of a faulty condition. The trip becomes activated when it senses heat from an overload or high current from a short circuit.


What are the different types of circuit trips?


There are two types of circuit trips: electromechanical and electronic. An electromechanical circuit trip has two moving parts that work together to determine when to open the circuit. The two parts are a current-sensitive device and a thermal-sensitive device. An electric circuit trip is less mechanical as it's a programmable device. It measures and times the current flowing through the circuit breaker, electronically delivering a trip signal when it's needed.


How to choose the right circuit trips


Choosing the right circuit trips depends on the circuit or device you're using it for. There are various features that should be considered when selecting the right circuit trips, such as rated-control voltage and the current rating.


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Description Price Current Rating Range Series For Use With Type Rated Control Voltage
RS Stock No. 539-0083
Mfr. Part No.2CSS200911R0002
BrandABB
MYR414.40
Each
units
- System Pro M Compact S-2C S200 Series, S200P Series Undervoltage Release 24 V ac
RS Stock No. 706-1923
Mfr. Part No.3RV2902-1AB4
BrandSiemens
MYR431.31
Each
units
- Sirius Innovation 3RV2 3RV2 Series Undervoltage Release 24 V dc
RS Stock No. 186-3461
Mfr. Part No.362119
BrandABB
MYR346.54
Each
units
63 A - E202 Commanding Loads Isolator -
RS Stock No. 776-2935
Mfr. Part No.A9N26969
MYR539.22
Each
units
- Acti 9 - C120 Series, C60 Series, ID Residual Current Device, IDPN Residual Current Device Undervoltage Release 230 → 240 V ac
RS Stock No. 706-1976
Mfr. Part No.3RV2902-2DP0
BrandSiemens
MYR149.50
Each
units
- Sirius Innovation 3RV2 3RV2 Series Shunt Release 210 → 240 V ac
RS Stock No. 744-6973
Mfr. Part No.LAD703F
MYR278.50
Each
units
- - - LR3D Series, LRD Series - -
New
RS Stock No. 195-3934
Mfr. Part No.V9-230VCA
BrandCHINT
MYR326.23
Each
units
- - - NB1, NB1L, NB3LE, NB3LEU, NBH8 Voltage Release 230 V ac
RS Stock No. 706-1973
Mfr. Part No.3RV2902-2DF0
BrandSiemens
MYR149.50
Each
units
- Sirius Innovation 3RV2 3RV2 Series Shunt Release 90 → 110 V ac
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