Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	ABB
	Product Type	Miniature Circuit Breaker
	Number of Poles	1
	Current Rating	20A
	Tripping Characteristics	Type B
	Rated AC Voltage	230V ac
	Breaking Capacity	10kA
	Mount Type	DIN Rail
	Range	SMISSLINE TP
	Series	S401M-B20
	Terminal Type	0.75 to 25 mm² Rigid
	Width	18mm
	Height	91mm
	Standards/Approvals	IEC/EN 60898-1
	Depth	82mm

	Select all
	Brand ABB
	Product Type Miniature Circuit Breaker
	Number of Poles 1
	Current Rating 20A
	Tripping Characteristics Type B
	Rated AC Voltage 230V ac
	Breaking Capacity 10kA
	Mount Type DIN Rail
	Range SMISSLINE TP
	Series S401M-B20
	Terminal Type 0.75 to 25 mm² Rigid
	Width 18mm
	Height 91mm
	Standards/Approvals IEC/EN 60898-1
	Depth 82mm

Datasheet - 2CCS571001R0205

COO (Country of Origin):: CH

ABB S400M Series Miniature Circuit Breaker, 20A Current, 230V Rated AC Voltage - 2CCS571001R0205 S401M-B20

This miniature circuit breaker is designed to provide overcurrent protection for single-phase electrical installations. It operates on a 230V AC supply and disconnects circuits when currents exceed its rated capacity, offering a Compact protective device that mounts on a DIN rail and interfaces with conventional wiring practices.

Features and Benefits:

• Type B tripping offers protection for resistive and small inductive loads
• 10kA breaking capacity limits fault energy during short circuits
• Single-pole configuration enables simple circuit isolation
• Screw Terminal provides secure conductor clamping and easy installation
• Compact 91mm height allows dense panel population

Applications

• Suitable for protecting lighting circuits in residential properties
• Ideal for small commercial socket circuit protection
• Used with distribution boards requiring DIN-rail components
• Can be used for single-phase motor control protection
• Suitable for retrofitting Compact consumer units

What is the configuration for connecting this protective device?

It uses a single-pole arrangement with screw-type terminals for the live conductor connection.

How does its breaking capacity influence panel selection?

The 10kA interrupting rating determines the maximum prospective fault current it can safely clear when sizing alongside upstream protective devices.

What tripping behaviour can installers expect?

It follows a Type B characteristic, tripping at lower multiples of rated current suitable for mainly resistive loads.

Which standard governs its general functional requirements?

The device is manufactured to meet the IEC/EN 60898-1 standard for circuit breakers in household and similar installations.

How does the physical width affect distribution design?

With an 18mm module width, it allows multiple units to be installed across standard DIN rail enclosures without excessive space use.

ABB SMISSLINE TP S401M-B20 Miniature Circuit Breaker, 1-Pole, 20A, Type B, 230V ac AC, 10 kA Breaking Capacity

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