AC MCCB Breaker 1140V 100kA High Voltage Protection

Name: AC MCCB Breaker 100kA 1140V 3P 630A - ETEK Electri
SKU: EKM7_AC_MCCB

Securing robust high-voltage AC distribution networks, the AC MCCB Breaker delivers reliable electro-magnetic fault isolation. The EKM7_AC_MCCB molded circuit breaker manages continuous loads up to 630A, guaranteeing 100kA short-circuit stability for industrial infrastructures.

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ModelEKM7_AC_MCCB

CategoryMolded Case Circuit Breakers, Circuit Breakers

AvailabilityIn stock

CE & TUV certified
Worldwide shipping
OEM & ODM support

Product Features of the AC MCCB Breaker

Engineered to instantaneously interrupt severe alternating current faults, this AC MCCB Breaker ensures rigorous equipment safety through advanced arc elimination technologies.

Arc Suppression Technology: Features a short 50mm arcing distance with a standard arc suppression cover and three-layer free metal partition to prevent secondary system failures.
High Insulation Endurance: Delivers exceptional insulation performance with a rated impulse withstand voltage (Uimp) of 12kV and an insulation voltage of 1200V.
Core Patented Mechanics: Utilizes repulsion opening anti-drop technology and a new single breakpoint structure, providing more reliability than traditional double breakpoint designs.
Extreme Environment Resistance: Demonstrates robust anti-humidity, heat, salt spray, and mold resistance, supporting reverse inlet lines without capacity reduction.

Industrial Applications for the AC MCCB Breaker

Integrating the EKM7_AC_MCCB model minimizes critical downtime across specialized commercial and heavy-duty AC infrastructures.

Power Distribution Networks: Protects robust AC circuits operating between 690V and 1140V against overloads, short circuits, overvoltage, and undervoltage anomalies.
Heavy Machinery Operation: Functions as a highly dependable mccb ac device for the infrequent switching of industrial circuits and occasional heavy motor starting.
High-Altitude Substations: Maintains uncompromised power line stability in elevated installations, supporting altitudes up to 5000m with calculated derating.

Technical Specifications of the AC MCCB Breaker

Evaluate the comprehensive electro-magnetic parameters below to ensure this AC MCCB Breaker aligns precisely with your specific AC switchgear load calculations.

Certifications & Operating Conditions:

The EKM7_AC_MCCB strictly complies with the IEC60947-2 standard. It operates reliably in ambient temperatures ranging from -40°C to +70°C, requiring no thermal derating at +50°C.

Model Fast Selection Guide:

EKM7 Series MCCB Configuration
Product code	Frame size	Breaking capacity level	Poles	Product Accessories	Color code
EKM7	320, 630	M: ordinary type H: high breaking type	3P	See accessory table	None: off-white cover, black handle D: dark gray cover, red handle

Technical Parameters:

Model		EKM7-320	EKM7-630
Rated Frame Current Inm (A)		320	630
Rated current In (A)		16, 20, 25, 32, 40, 50, 63, 75, 80, 100, 125, 140, 160, 180, 200, 225, 250, 320A	225, 250, 320, 350, 400, 500, 630A
Pole		3P
Rated working voltage Ue (V)		380/415V, 690V, 800V, 1000V, 1140V
Rated insulation voltage Ui (V)		1200V
Rated impulse withstand voltage Uimp (kV)		12kV
Power frequency withstand voltage (1min) (V)		3500V
Rated ultimate short-circuit breaking capacity Icu (kA)
M Level	AC380/415V, AC690V, AC800V, AC1000V	50, 20, 20, 12	60, 20, 20, 12
M Level	AC1140V	12	12
H Level	AC380/415V, AC690V, AC800V, AC1000V	100, 50, 30, 20	100, 65, 50, 32
H Level	AC1140V	20	20
Rated operating short-circuit breaking capacity Ics (kA)
M Level	All Voltages	50, 20, 20, 12, /	60, 20, 20, 12, 12
H Level	All Voltages	100, 50, 30, 20, 12	100, 65, 50, 32, 20
Mechanical life (cycles)		15000
Electrical life (cycles)		5000, 3000, 3000, 1000, 1000	5000, 3000, 3000, 1000, 1000
Arc distance (mm)		50
Dimension W x L x H (mm)		120 x 200 x 103	158 x 325 x 177
Instantaneous release		5In or 10In

Temperature & Altitude Derating Characteristics:

Applicable Working Environment and Compensation Coefficient
Ambient temperature	10°C	20°C	25°C	30°C	40°C	50°C	60°C	70°C
Compensation coefficient	1.17	1.14	1.12	1.06	1	0.96	0.87	0.76

Derating Coefficient Based On Altitude
Altitude (m)	2000	2500	3000	3500	4000	4500	5000
Rated current	1In	0.99In	0.98In	0.97In	0.96In	0.95In	0.94In
Rated voltage	1Ue	0.95Ue	0.88Ue	0.85Ue	0.82Ue	0.8Ue	0.75Ue
Rated power frequency withstand voltage	1U	0.95U	0.88U	0.85U	0.82U	0.8U	0.75U

Accessory Configuration Table:

AC MCCB Breaker

Dimensions and Wiring with the AC MCCB Breaker

Verify exact enclosure compatibility for this ac mccb device by referencing the structural footprints, required clearance spaces, and mounting hole configurations illustrated below.