The Eaton Industries MCCB motor circuit breaker is compact sized with dimensions of 90×84.5x145mm. It is designed for insert in-device construction with a nominal continuous current Iu of 50A. The connection method for the main current circuit is unique, and features magnetic switch-off technology. It provides an IP20 degree of protection and operates with a rated voltage of 690V. This series NZM..-S circuit breaker provides flexibility in mounting due to its modular function groups. It is equipped with a magnetic short-circuit release in conjunction with an overload relay. Furthermore, it has a short-circuit release without an overload trip. Being compliant with the AC-3 switching category, these circuit breakers meet all the requirements for the IEC market.
Specifications
Overload release current setting (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 8 A to 14 A
With thermal protection : No
Phase failure sensitive : No
Switch off technique : Magnetic
Rated operating voltage (V) : 690 V to 690 V
Rated permanent current Iu (A) : 50
Rated operation power at AC-3, 230 V (kW) : 15
Rated operation power at AC-3, 400 V (kW) : 22
Type of electrical connection of main circuit : Other
Type of control element : Rocker lever
Device construction : Built-in device plug-in technique
With integrated auxiliary switch : No
With integrated under voltage release : No
Number of poles : 3
Rated short-circuit breaking capacity lcu at 400 V, AC (kA) : 35
Degree of protection (IP) : IP20
Height (mm) : 145
Width (mm) : 90
Depth (mm) : 84.5
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