Eaton 3 → 12 A Motor Protection Circuit Breaker, 690 V ac

Motor-protective circuit-breakers PKE with electronic wide-range overload protection provide the highest level of flexibility
featuring a compact and modular design with its plug-in control unit.

Wide current setting ranges
Plug-in trip blocks up to 65 A
Expandable using the existing system accessories from the system xStart
SmartWire-DT interface increases the levels of system availability by the transfer of process-relevant data
Worldwide approved system components and accessories

Electric motors need protection from phase unbalances, current overload and losses, circuit breakers or MPCBs offer motor protection and prevent short circuits by disconnecting the current. Thermal protection guards against overload, magnetic protection protects against short circuits and faults and phase protection guards against phase loss or imbalance. MCPs or motor circuit protectors only protect against short circuits and generally need an overload relay installing, whereas an MPCB doesn't usually need an overload relay offering magnetic protection and preventing thermal overload. MCPBs can also be integrated into a unit with other devices.

Protect electric motors from unbalanced phases or current overload with this circuit breaker from Eaton. Its screw-in terminal makes it easy to wire, while its manual rotary switch is simple to operate. Use it for pumps, fans and crushers. The motor protection circuit breaker provides precise and extremely stable tripping characteristic curves for improved motor safety. Its modular design is highly compatible with other components for efficient control panel assembly. This unit includes magnetic protection against short circuits and doesn't need to be used in conjunction with a relay.

• Plug-in technology for fast and simple mounting
• Wide range of current settings for optimised efficiency
• Electronic wide-range overload protection up to 32 A for greater versatility of use
• Two independent separate contact systems in the motor starter for additional safety

Motor circuit protectors only protect against short circuits and need a relay to protect against overloads. Motor protection circuit breakers don't need a relay to prevent thermal overloads, making them a more efficient and simple-to-use option for integrating into a system.

Eaton formerly known as Moeller