The Eaton Industries MCCB motor protection switch is a built-in device with a dimension of 105x149x195mm. It has a rated continuous current Iu of 250A and uses a screw connection for the main circuit. The switch-off technology is magnetic with a protection degree of IP20. The operating voltage is 440V. The NZM..-S..CNA circuit-breakers cover all application cases with just four compact sizes and offer flexible mounting due to modular function groups. Other features include magnetic short-circuit release in connection with an overload relay, and short-circuit release lacking overload trip. The switches conform to UL/CSA and IEC regulations, with IEC switch performance values provided on the rating plate.
Specifications
Overload release current setting (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 8 A to 10 A
With thermal protection : No
Phase failure sensitive : No
Switch off technique : Magnetic
Rated operating voltage (V) : 440 V to 440 V
Rated permanent current Iu (A) : 250
Rated operation power at AC-3, 230 V (kW) : 75
Rated operation power at AC-3, 400 V (kW) : 132
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) : 18.5
Degree of protection (IP) : IP20
Height (mm) : 195
Width (mm) : 105
Depth (mm) : 149
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