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RF380250Lovato Overload Relays, BF Series
Item NumberRF380250MFG Item NumberRF380250SeriesBFProduct DescriptionThermal Overload Relay 1, 6 - 2, 5ASpecificationsSpecifications Type Thermal Poles 3 Trip Class Class 10 Connection Type Direct Mounting Ambient Temperature Range -13-140 °F AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
TF96-78ABB Overload Relays, TF96 Series
Item NumberTF96-78MFG Item NumberTF96-78SeriesTF96Product DescriptionOverload Relay, 65-78A, Class 10,SpecificationsSpecifications Type Bimetallic Poles 3 Trip Class Class 10 Connection Type Screw Terminals Ambient Temperature Range -13-140 °F AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
EF750ABB Overload Relays, EF SeriesItem NumberEF750MFG Item NumberEF750SeriesEFProduct DescriptionOverload Relay, 250-800A, ElectronicSpecificationsSpecifications Poles 3 Connection Type Screw Terminals Ambient Temperature Range -25-70 °F Availability -
RW27-1D3-D063WEG Electric Overload Relays, RW Series
Item NumberRW27-1D3-D063MFG Item NumberRW27-1D3-D063SeriesRWProduct DescriptionOverload Relay, 4.00-6.30A, Class 10SpecificationsSpecifications Type Bimetallic Poles 3 Trip Class Class 10 Connection Type Screw Terminals Ambient Temperature Range -4-158 °F AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
RW27-1D3-D018WEG Electric Overload Relays, RW SeriesItem NumberRW27-1D3-D018MFG Item NumberRW27-1D3-D018SeriesRWProduct DescriptionOverload Relay, 1.20-1.80A, Class 10SpecificationsSpecifications Type Bimetallic Poles 3 Trip Class Class 10 Connection Type Screw Terminals Ambient Temperature Range -4-158 °F AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
XTOB2P4BC1Cutler Hammer, Div of Eaton Overload Relays, XTOB Series
Item NumberXTOB2P4BC1MFG Item NumberXTOB2P4BC1SeriesXTOBProduct DescriptionOverload Relay, 1.6-2.4A, B Frame,SpecificationsSpecifications Type Bimetallic Poles 3 Trip Class Class 10 Connection Type Wire Ambient Temperature Range -13-131 °F AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
RW67-1D3-U040WEG Electric Overload Relays, RW SeriesItem NumberRW67-1D3-U040MFG Item NumberRW67-1D3-U040SeriesRWProduct DescriptionOverload Relay, 25.0-40.0A, Class 10SpecificationsSpecifications Type Bimetallic Poles 3 Trip Class Class 10 Connection Type Screw Terminals Ambient Temperature Range -4-158 °F AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
RF380650Lovato Overload Relays, BF SeriesItem NumberRF380650MFG Item NumberRF380650SeriesBFProduct DescriptionThermal Overload Relay 4 - 6, 5ASpecificationsSpecifications Type Thermal Poles 3 Trip Class Class 10 Connection Type Direct Mounting Ambient Temperature Range -13-140 °F AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
EF146-150ABB Overload Relays, EF146 SeriesItem NumberEF146-150MFG Item NumberEF146-150SeriesEF146Product DescriptionOverload Relay, 54-150A, Electronic,SpecificationsSpecifications Poles 3 Connection Type Screw Terminals Ambient Temperature Range -13-158 °F AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
H2013B-3Cutler Hammer, Div of Eaton Overload RelaysItem NumberH2013B-3MFG Item NumberH2013B-3Product DescriptionHeater Pack, 18.7-30.7A, Class 20,AvailabilityOrder by 5:00 PM ET and your package will ship the same day.
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Overload Relays
Overload relays are electrical devices designed to offer reliable protection for motors in the event of overload or phase failure.
These types of relays are used to protect against a running overcurrent that would cause overheating in a motor. Instead of instantaneous trip characteristics found in circuit breakers, fuses and overcurrent relays, overload relays monitor current over time.
Thermal overload relays have a bimetallic strip that bends when heated to a set temperature. When excessive current heats the relay to that setpoint, the contactor de-energizes and interrupts power to the motor.
Electronic overload relays use electronics to constantly monitor current, instead of relying on heat to trip a contact coil. These relays often offer adjustable current ranges, protect against phase loss, and can automatically reset.
Overload relays are marked by Class (Class 10, 20 and 30), which indicates the response time of the relay.
These types of relays are used to protect against a running overcurrent that would cause overheating in a motor. Instead of instantaneous trip characteristics found in circuit breakers, fuses and overcurrent relays, overload relays monitor current over time.
Thermal overload relays have a bimetallic strip that bends when heated to a set temperature. When excessive current heats the relay to that setpoint, the contactor de-energizes and interrupts power to the motor.
Electronic overload relays use electronics to constantly monitor current, instead of relying on heat to trip a contact coil. These relays often offer adjustable current ranges, protect against phase loss, and can automatically reset.
Overload relays are marked by Class (Class 10, 20 and 30), which indicates the response time of the relay.