Eaton 4 A Motor Protection Circuit Breaker, 690 V

Modular Motor Protective Circuit Breakers designed for use with add-on contactor modules and accessories which provide isolation, short circuit and thermal protection. The units are DIN-rail mounting and part of the xStart family of control gear products, and a range of connection and wiring accessories are available to speed up assembly work and minimise wiring errors.,Various enclosure options are available, see PKZM Enclosures range.

Rated operating voltage 690Vac
Operating temperature range -25°C to +55°C
Temperature compensated range -5°C to +40°C
Adjustable current trip level, 0.6 – 1.0 x nominal rating
Short-circuit trip level (fixed) 14x nominal rating
Single-phase-failure sensitivity to IEC60947-4-1
Dimensions 195 x 45 x 77 (HxWxD) mm
Rotary switch operation with padlockable handle option, see accessories
On/Off/Tripped indication may be locked in the "off" position with handle

MPCBs are more critical now than ever. Most infrastructures now rely on a motor behind the scenes to power critical uninterruptible systems such as heating, ventilation and cooling. These systems are vital in ensuring business continues as usual, therefore must be protected against overcurrent's, thermal overloads and similar problems.

IEC (EN60) 947-1 general, 947-2 Circuit breakers, 1-4 switch disconnectors, 1-5 Motor starters, 1-6 Electrical equipment of machines

UL, CSA, LROS, GL

When you need robust protection for motors in your industrial automation or process control applications, choose this motor protection circuit breaker (MPCB) from Eaton. It combines a motor on/off switch and isolator with protection from short circuits and overload, making it a convenient choice for safely operating your motor. You can use it for low-current applications of 2.5 to 4 A and high supply voltages of up to 690 V AC. It has three poles for safe use in a three-phase electrical system.

• Designed for a high number of operations for reliability and a long service life
• Compact dimensions of 93 (length) x 45 (width) x 76 mm (depth) for use in tight spaces
• Ingress protection rating of IP20 for protection against small objects of 12 mm in size and larger

By offering protection to your motor, an MPCB eliminates the need for frequent replacement and repair of motor parts. This reduces downtime for maintenance and keeps your processes running smoothly and efficiently.