Eaton 1 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

This versatile circuit breaker from Eaton is designed to protect motors from overload and short circuits while also functioning as an on/off switch. The all-in-one solution offers protection to motors with a current rating of up to 1 A. Its high breaking capacity of 60 kA ensures that you and your equipment will remain safe in the event of a surge of high current. You can use this device for a range of applications, such as automation or process-control engineering.

• Isolator switch for safe and simple maintenance
• Three poles to maximise range of protection
• High supply voltage of 690 V AC for use in demanding applications
• Broad operating temperature range of -25°C to +40°C makes it suitable for use in harsh industrial environments
• Compact dimensions of 93 (length) x 45 (width) x 76 mm (depth) for installation in tight spaces

Overloading happens when a motor overheats and draws a higher current. This can be caused by jams and frequent starts, as well as a starting time that's too long.