EATON Combination Motor Starter: 3 Poles, Circuit Breaker, 12 A, 480V AC Coil
The EATON Combination Motor Starter (3 Poles) is a circuit breaker starter with thermal overloads, featuring a 480V AC coil and adjustable thermal units included. It operates via a Hand/Off/Auto selector switch and…
SKU 3G-OTH-40221
Need installation or engineering help?
Ask a question
Product Description
The EATON Combination Motor Starter (3 Poles) is a circuit breaker starter with thermal overloads, featuring a 480V AC coil and adjustable thermal units included. It operates via a Hand/Off/Auto selector switch and includes a control transformer, 1NO auxiliary contact, and screw-type wire termination. This three-phase unit (MPN ECX77D8CJB-J) provides integrated motor protection in a compact design.
Frequently Asked Questions
What is the EATON ECX77D8CJB-J combination motor starter used for?
The EATON ECX77D8CJB-J combination motor starter is used for starting and protecting three-phase motors in industrial applications. It integrates a circuit breaker, thermal overload protection, and a 480V AC coil into one unit, making it suitable for pumps, conveyors, and HVAC equipment where compact motor control and safety are required.
What are the specifications of the EATON ECX77D8CJB-J combination motor starter?
The EATON ECX77D8CJB-J is a 3-pole, three-phase combination motor starter rated for 480V AC with a 12 A circuit breaker and 480V AC coil. It includes adjustable thermal units, a control transformer, 1NO auxiliary contact, Hand/Off/Auto selector switch, and screw-type wire termination. The MPN is ECX77D8CJB-J.
Where to buy the EATON ECX77D8CJB-J combination motor starter worldwide?
You can source the EATON ECX77D8CJB-J combination motor starter through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide reliable sourcing for this EATON motor starter.
How to install the EATON ECX77D8CJB-J combination motor starter?
Install the EATON ECX77D8CJB-J by mounting it on a DIN rail or panel, connecting three-phase power to the line side, and wiring the motor to the load side. Set the adjustable thermal units per motor full-load current. Use the Hand/Off/Auto selector for operation. Always follow local electrical codes and disconnect power before installation.
Used in
Common applications for EATONEATON Products
3G Electric supplies EATON circuit breaker starters with thermal overloads. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















