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選取全部	屬性	值
	品牌	ABB
	Number of Poles	3
	Product Type	Miniature Circuit Breaker
	Current Rating	20 A
	Tripping Characteristics	Type D
	Rated AC Voltage	12 V ac
	Rated DC Voltage	400 V dc
	Breaking Capacity	10kA
	Mount Type	DIN Rail
	Series	S403M
	Terminal Type	Screw
	IP Rating	IP20
	Depth	75mm
	Standards/Approvals	RoHS, REACH, IEC/EN 60898-1, CMRT
	Width	54 mm
	Height	91mm
	Tripping Mechanism	Thermal, Electromechanic

	選取全部
	品牌 ABB
	Number of Poles 3
	Product Type Miniature Circuit Breaker
	Current Rating 20 A
	Tripping Characteristics Type D
	Rated AC Voltage 12 V ac
	Rated DC Voltage 400 V dc
	Breaking Capacity 10kA
	Mount Type DIN Rail
	Series S403M
	Terminal Type Screw
	IP Rating IP20
	Depth 75mm
	Standards/Approvals RoHS, REACH, IEC/EN 60898-1, CMRT
	Width 54 mm
	Height 91mm
	Tripping Mechanism Thermal, Electromechanic

Datasheet - 2CCS573001R0201

COO (Country of Origin):: CH

ABB S403M Series MCB, 20A Current Rating, 3 Poles - 2CCS573001R0201

This is an MCB designed to provide reliable overcurrent protection in commercial and industrial settings. The S403M-D20 operates with a current rating of 20A and features a 3-pole configuration. Its thermal electromechanical tripping mechanism ensures effective overload and short circuit protection. This DIN Rail Circuit Breaker measures 54mm in width and 75mm in length, making it suitable for various circuit setups.

Features & Benefits

• Trip characteristics are compliant with Type D standards for high inrush currents

• Offers a breaking capacity of up to 10 kA, suitable for industrial applications

• Thermal and electromechanical mechanisms enhance reliability in diverse conditions

• Compact design allows easy installation on standard DIN rails

• Accommodates flexible and rigid connecting capacities for versatile wiring

• Indicator lights provide clear visibility of the circuit's status

Applications

• Utilised for overload protection in commercial installations

• Effective in safeguarding industrial machines and equipment

• Used in critical power requiring dependable circuit protection

• Ideal for managing electrical systems in automated environments

How does the tripping mechanism function in this device?

The tripping mechanism utilises a combination of thermal and electromechanical methods. The thermal component provides delayed tripping for overloads, whereas the electromechanical aspect responds rapidly to short circuits, ensuring comprehensive protection.

What do the rated operational voltages mean for usage scenarios?

The rated operational voltages indicate that the device can function effectively between 12V and 440V AC. This range ensures its compatibility with various electrical systems, from low-voltage applications to standard industrial mains.

How can I confirm the breaking capacity for my specific application?

The breaking capacity of this circuit breaker is rated at 10 kA at both 230V and 400 V. This high capacity is suitable for demanding environments where short circuit conditions may occur, ensuring the safety of connected circuits.

What wiring specifications should be considered during installation?

Wiring should use screw terminals capable of accommodating flexible conductors of 0.75 to 25 mm² and rigid conductors of 0.75 to 35 mm². Adhering to these specifications will ensure secure connections and optimal electrical performance.

ABB S403M Miniature Circuit Breaker, 3-Pole, 20 A, Type D, 12 V ac AC, 400 V dc DC, 10 kA Breaking Capacity

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