ABB System Pro M Compact S301 Miniature Circuit Breaker, 1-Pole, 40 A, Type C, 415 V ac AC, 125 V DC, 25 kA Breaking

RS Stock No.:: 200-277
Mfr. Part No.:: 2CDS381001R0404
Manufacturer:: ABB

ABB System Pro M Compact S301 Miniature Circuit Breaker, 1-Pole, 40 A, Type C, 415 V ac AC, 125 V DC, 25 kA Breaking

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HK$970.51

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Shipping from 24 February 2026

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Units	Per unit
1 +	HK$970.51

*price indicative

RS Stock No.:: 200-277
Mfr. Part No.:: 2CDS381001R0404
Manufacturer:: ABB

Specifications

Product overview and Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	ABB
	Number of Poles	1
	Product Type	Miniature Circuit Breaker
	Current Rating	40 A
	Tripping Characteristics	Type C
	Rated AC Voltage	415 V ac
	Rated DC Voltage	125 V
	Mount Type	DIN Rail
	Breaking Capacity	25kA
	Range	System Pro M Compact
	Series	S301
	Terminal Type	Screw
	IP Rating	IP40, IP20
	Depth	69mm
	Standards/Approvals	IEC/EN 60947-2 IEC/EN 60898-1 UL 1077 CSA 22.2. No.235 GB/T 14048.2 GB/T 10963.1
	Width	17.5 mm
	Height	88mm

	Select all
	Brand ABB
	Number of Poles 1
	Product Type Miniature Circuit Breaker
	Current Rating 40 A
	Tripping Characteristics Type C
	Rated AC Voltage 415 V ac
	Rated DC Voltage 125 V
	Mount Type DIN Rail
	Breaking Capacity 25kA
	Range System Pro M Compact
	Series S301
	Terminal Type Screw
	IP Rating IP40, IP20
	Depth 69mm
	Standards/Approvals IEC/EN 60947-2 IEC/EN 60898-1 UL 1077 CSA 22.2. No.235 GB/T 14048.2 GB/T 10963.1
	Width 17.5 mm
	Height 88mm

COO (Country of Origin):: DE

ABB S301 Series MCB, 40A Current Rating, 1 Pole - 2CDS381001R0404

This MCB, a reliable 40A circuit breaker, offers exceptional protection for electrical installations. With a compact design measuring 67.6mm in length, 17.5mm in width, and a total depth of 67.6mm, it seamlessly mounts on a standard DIN rail, making installation straightforward and efficient. This device operates with a rated AC voltage of 415V and a rated DC voltage of 125V, ensuring versatility across various applications.

Features & Benefits

• Supports a breaking capacity of 25kA for high levels of protection

• Tripping characteristics comply with Type C standards for overload scenarios

• Single-pole design maximises space management in electrical panels

• Screw terminal connection ensures robust wire security

• Suitable for both commercial and industrial applications to enhance reliability

• Integrated trip indicator provides clear visual feedback on operational status

Applications

• Utilised in commercial buildings for electrical safety

• Employed in industrial machinery for circuit protection

• Effective in residential settings to safeguard against overloads

• Ideal for use in combination with various auxiliary elements

What is the maximum breaking capacity for this circuit breaker?

The circuit breaker features a maximum breaking capacity of 25kA, providing reliable protection against overcurrents and electrical faults.

How does the tripping characteristic of Type C influence operation?

The Type C characteristic allows the breaker to trip quickly in response to short-circuits while providing delayed tripping for temporary overloads, ensuring stability in electrical circuits.

What type of mounting method is required for installation?

This circuit breaker is designed for quick and easy installation on a standard DIN rail, simplifying the setup process in various electrical panels.

Is this device suitable for both AC and DC applications?

Yes, it operates effectively at a rated AC voltage of 415V and a rated DC voltage of 125V, making it versatile for different electrical systems.