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China Solar type Molded Case Circuit Breaker (MCCB) OEM 800VAC/1000VAC/1140VAC 320A 3 Poles Suppliers, Factory

China Solar type Molded Case Circuit Breaker (MCCB) OEM 800VAC/1000VAC/1140VAC 320A 3 Poles Suppliers, Factory

China Solar type Molded Case Circuit Breaker (MCCB) OEM 800VAC/1000VAC/1140VAC 320A 3 Poles Suppliers, Factory

China Solar type Molded Case Circuit Breaker (MCCB) OEM 800VAC/1000VAC/1140VAC 320A 3 Poles Suppliers, Factory

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China Solar type Molded Case Circuit Breaker (MCCB) OEM 800VAC/1000VAC/1140VAC 320A 3 Poles Suppliers, Factory

China Solar type Molded Case Circuit Breaker (MCCB) OEM 800VAC/1000VAC/1140VAC 320A 3 Poles Suppliers, Factory

China Solar type Molded Case Circuit Breaker (MCCB) OEM 800VAC/1000VAC/1140VAC 320A 3 Poles Suppliers, Factory

China Solar type Molded Case Circuit Breaker (MCCB) OEM 800VAC/1000VAC/1140VAC 320A 3 Poles Suppliers, Factory

China Solar type Molded Case Circuit Breaker (MCCB) OEM 800VAC/1000VAC/1140VAC 320A 3 Poles Suppliers, Factory

Rated Current: 225A、250A、315A、350A、400A

Number Of Poles: 3P/4P

Rated Working Voltage: AC800V/1000V

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Product Description

ARM6HU Highlights

Insulation: Pole to pole connection and complete isolation of main circuit.
New Energy Applications: Specifically engineered for grid-connected operations. AC MCCB: series inverter applications (power station type) where the PV string is inverted by the inverter DC/AC.
Grid Connection & Combiner Box: Designed for AC combiner boxes and low-voltage side of box substations equipped with AC circuit breakers.
Working Voltage: Optimized for high operating parameters of AC500V up to AC800V. The direct grid connection mode operates under AC400V.

Main Performance Index of ARM6HU Series Circuit Breaker

Model		ARM6HU-320A
Rated current In (A)		100A/125A/140A/160A/180A/200A/225A/250A/300A/320A
Number of poles (P)		3P
Breaking capacity level		M
Rated working voltage Ue (V)		800V
Ultimate short-circuit breaking capacity Icu (kA)		50
Service short-circuit breaking capacity Ics (kA)		50
Rated working voltage Ue (V)		1140V
Ultimate short-circuit breaking capacity Icu (kA)		20
Service short-circuit breaking capacity Ics (kA)		20
Rated insulation voltage Ui (V)		1140V
Impulse withstand voltage Uimp (V)		8kV
Mechanical life (time)		7000
Electrical life (time)		1500
Arcing distance (mm)		(Up/Below)(mm): 100mm (Left/Right)(mm): 100mm (Front/Back)(mm): 0mm
Overall dimensions (mm)	W	139
	L	200
	H	115.5

Overall and Installation Dimensions of Circuit Breaker

ARM6HU-320-3300 (BMC)

ARM6HU-320-3300 (BMC)

MCCB Production Line Real Showing

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Step 01

MCCB Parts Device

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Step 02

MCCB Parts Device Copper

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Step 03

Moulding Metal Stamping Line

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Step 04

MCCB Parts Processing Device

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Step 05

Automatic Assembling Device

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Step 06

Molding Office

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Step 07

MCCB Production Team

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Step 08

Metal Stamping Warehouse

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Frequently Asked Questions

What is the primary application of the ARM6HU series circuit breaker?

The ARM6HU series circuit breaker is widely used in the field of new energy. It is specifically designed for series inverter applications (power station type) in AC combiner boxes and on the low-voltage side of box substations.

What working voltages are supported by the ARM6HU-320A MCCB?

The rated working voltage (Ue) parameters include AC800V and AC1140V, while direct grid connection mode operates at lower voltages, typically under AC400V.

What is the breaking capacity of the ARM6HU-320A?

At a working voltage of 800V, the ultimate short-circuit breaking capacity (Icu) and service short-circuit breaking capacity (Ics) are both 50kA. At 1140V, the Icu and Ics are both 20kA.

What are the mechanical and electrical lifespans of the circuit breaker?

The ARM6HU-320A circuit breaker has a mechanical lifetime expectancy of up to 7,000 operations, and an electrical lifespan of 1,500 operations.

Does the ARM6HU support complete isolation?

Yes, the device features comprehensive insulation designed for pole-to-pole connection and complete isolation of the main circuit.

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