The Eaton Industries MCCB Motor Protection Circuit Breaker is compact, measuring 105x149x195mm, and comes with an overload setting range of 45-90A. Designed as a built-in device with a constant nominal current Iu of 90A, it features a screw connection for the main current circuit and employs electronic switch-off technology. The NZM..-ME..NA series circuit-breakers are ideal for IEC market applications and showcase flexible mounting due to modular function groups. They come with electronic release for motor protection with phase failure sensitivity and also comply with both UL/CSA and IEC regulations. The device is 100% rated for use in motor circuits with contactor and has additional motor protective characteristics. It also features adjustable overload releases Ir and an adjustable time delay setting of 2-20s at 6xIr to overcome current peaks.
Specifications
Overload release current setting (A) : 45 A to 90 A
Adjustment range undelayed short-circuit release (A) : 90 A to 1260 A
With thermal protection : Yes
Phase failure sensitive : Yes
Switch off technique : Electronic
Rated operating voltage (V) : 690 V to 690 V
Rated permanent current Iu (A) : 90
Rated operation power at AC-3, 230 V (kW) : 22
Rated operation power at AC-3, 400 V (kW) : 45
Type of electrical connection of main circuit : Screw connection
Type of control element : Rocker lever
Device construction : Built-in device fixed built-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) : 130
Degree of protection (IP) : IP20
Height (mm) : 195
Width (mm) : 105
Depth (mm) : 149
Reviews
There are no reviews yet.