The Eaton Industries MCCB is a three-pole, NZM2 circuit-breaker with a rated uninterrupted current (In = Iu) of 300A and switching capacity of 1000V at 50/60 Hz. Its interrupt capacity (Ics) is 10kA. The breaker features an adjustable overload protection range of 120 – 300A and an un-delayed short circuit setting of 1500 – 12450A. The device is designed for fixed-installation and through a screw connection modeling. This device adheres to the IEC standard and provides system and cable protection.
Specifications
Rated permanent current Iu (A) : 300
Rated voltage (V) : 1000 V to 1000 V
Rated short-circuit breaking capacity lcu at 400 V, 50 Hz (kA) : 150
Overload release current setting (A) : 240 A to 300 A
Adjustment range short-term delayed short-circuit release (A) : 0 A to 0 A
Adjustment range undelayed short-circuit release (A) : 1500 A to 12450 A
Integrated earth fault protection : No
Type of electrical connection of main circuit : Screw connection
Device construction : Built-in device fixed built-in technique
Suitable for DIN rail (top hat rail) mounting : No
DIN rail (top hat rail) mounting optional : Yes
Number of auxiliary contacts as normally closed contact : 0
Number of auxiliary contacts as normally open contact : 0
Number of auxiliary contacts as change-over contact : 0
With switched-off indicator : No
With integrated under voltage release : No
Number of poles : 3
Position of connection for main current circuit : Front side
Type of control element : Rocker lever
Complete device with protection unit : Yes
Motor drive integrated : No
Motor drive optional : Yes
Degree of protection (IP) : IP20
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