The Eaton Industries MCCB motor protection switch measures 95x90x201mm and has a 40 – 50A overload setting range. It’s installed as a plug-in device with a nominal continuous current Iu of 50A. Its main circuit connection method is atypical and its shutdown technology is thermomagnetic, offering an IP20 protection degree. This device is part of the Series NZM..-M circuit-breakers which is available in four compact sizes for the IEC market, possessing thermomagnetic releases for motor protection. They incorporate phase-failure sensitivity, a 10A tripping class, and meet all requirements of the switching category AC-3 as per IEC/EN 60947-4-1, IEC/EN 60947-2.
Specifications
Overload release current setting (A) : 40 A to 50 A
Adjustment range undelayed short-circuit release (A) : 400 A to 700 A
With thermal protection : Yes
Phase failure sensitive : Yes
Switch off technique : Thermomagnetic
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) : 201
Width (mm) : 95
Depth (mm) : 90
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