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China ARM3E Series electronic type adjustable type Molded Case Circuit Breaker 400V/690V 250A 3/4 poles Built in LSIG Trip Unit Manufacturer, Factory

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China ARM3E Series electronic type adjustable type Molded Case Circuit Breaker 400V/690V 250A 3/4 poles Built in LSIG Trip Unit Manufacturer, Factory

China ARM3E Series electronic type adjustable type Molded Case Circuit Breaker 400V/690V 250A 3/4 poles Built in LSIG Trip Unit Manufacturer, Factory

Rated Current : 63A、70A、75A、80A、90A、100A、125A、140A、150A、160A、180A、200A、225A、250A

Number Of Poles : 3P / 4P

Rated Working Voltage : 400V/690V

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Product Description

MCCB Highlights

Advantages and highlights of welding process equipment for MCCB Electronic type hardware parts

Strong Welding Core Competitiveness

Uses fully automatic equipment to flexibly accept parts welding processes from all walks of life.
Standardized Welding Processes

Standardized electrode processing, use, maintenance, and data management resolve process instability. Employs advanced techniques like indirect heating resistance brazing, induction brazing, and automatic welding after grinding.
Infrared Temperature Control

Precisely controls welding parameters, ensuring exceptional welding quality and extending product service life by 50%.

ARM3e

Main performance index of ARM3E series circuit breaker

Model		ARM3E-250
Rated current In (A)		63A, 70A, 75A, 80A, 90A, 100A, 125A, 140A, 150A, 160A, 180A, 200A, 225A, 250A
Rated current of frame size Inm (A)		250A
Usage category		Category A
Rated ultimate short-circuit breaking capacity level		M		H
Number of poles (P)		3P	3P	4P	4P
Rated working voltage Ue (V)		400V
Rated ultimate short-circuit breaking capacity Icu (kA)		50kA		85kA
Rated service short-circuit breaking capacity Ics (kA)		35KA		50kA
Rated short-time withstand current Icw (kA/1S)		3KA/1s
Rated working voltage Ue (V)		690V
Rated ultimate short-circuit breaking capacity Icu (kA)		20KA
Rated service short-circuit breaking capacity Ics (kA)		10KA
Rated insulation voltage Ui (V)		1000V
Rated impulse withstand voltage Uimp (V)		8kV
Mechanical life (time)		7000
Electrical life (time)		1000
Arcing distance (mm)		≯50
WLH (mm)	3P	10716592
	4P	14216592
	package 3p	130175130
	package 4p	180180145
	weight 3P	21019g
	weight 4P	2826g

Overall and installation dimensions of circuit breaker

Circuit breaker 250 frame size installation safety interval

■ Front panel wiring (3P, 4P)
X-X, Y-Y are the center of three-pole circuit breaker

Model	H0	H	H1	A	B	C	D
ARM3E-125(M/H)	28.5	2	106~110	16	22	28	42
ARM3ER-160(M/H)	28.5	92	106~110	16	22	26.5	42
ARM3L-125(M/H)	28.5	93	106~110	16	22	28	50
ARXM3R-160(S/L/M)	22.5	70	106~110	85	20	32.5	57

front panel wiring

■ Rear panel wiring (3P, 4P)
X-X, Y-Y are the center of three-pole circuit breaker

Rear panel wiring

■ Plug-in rear panel wiring (3P, 4P)
X-X, Y-Y are the centers of three-pole circuit breaker

Plug-in rear panel wiring

MCCB Production Line Real Showing

mccb molding office

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MCCB Molding Office

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mccb production team

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MCCB Production Team

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mccb moulding metal stamping production line

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Moulding Metal Stamping Production Line

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metal welding device

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Metal Welding Device

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mccb parts device copper

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MCCB Parts Device Copper

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mccb parts device

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MCCB Parts Device

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mccb automatic assembling device

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MCCB Automatic Assembling Device

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mccb moulding metal stamping warehouse

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Moulding Metal Stamping Warehouse

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Frequently Asked Questions (FAQ)

What are the main advantages of your MCCB hardware welding process?

Our welding process utilizes fully automatic equipment for high flexibility. We feature standardized electrode processing, usage, and maintenance to resolve process instability. Key technologies like indirect heating resistance brazing, induction brazing, and automatic welding after grinding are implemented to handle various materials.

How does infrared temperature control improve product life?

Infrared temperature control technology precisely monitors and adjusts the welding parameters during production. This guarantees consistent welding quality, prevents thermal damage to surrounding parts, and successfully improves the overall service life of the circuit breaker by up to 50%.

What is the difference between M and H capacity levels for the ARM3E-250?

The M and H levels represent different rated ultimate short-circuit breaking capacities (Icu) at 400V. The M class provides a breaking capacity of 50kA, whereas the H class delivers a higher breaking performance of 85kA to meet more demanding industrial requirements.

What wiring installation methods are supported by these circuit breakers?

The ARM3E series supports multiple wiring styles for both 3-pole (3P) and 4-pole (4P) configurations. These options include front panel wiring, rear panel wiring, and plug-in rear panel wiring, providing flexible integration for various electrical cabinet designs.

What are the mechanical and electrical lifespans of the ARM3E-250?

The ARM3E-250 model is designed for high durability, featuring a rated mechanical life of up to 7,000 operations and an electrical operation lifespan of up to 1,000 operations under standard usage conditions.

What are the dimensions and weight specifications for the 3P and 4P configurations?

For the 3P model, the physical dimensions are 107*165*92 mm with a package size of 130*175*130 mm and a weight of 21019g. For the 4P model, the dimensions are 142*165*92 mm with a package size of 180*180*145 mm and a weight of 2826g.

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