Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	ABB
	Current Rating	20A
	Number of Poles	4
	Trip Sensitivity	30mA
	Series	DS203NC
	Circuit Breaker Type	RCBO
	Tripping Characteristics	Type C
	Rated AC Voltage	400 → 415V
	Mounting Style	DIN Rail Mount
	Earth Leakage Protection Type	AC
	Overall Length	69mm
	Breaking Capacity at Maximum Voltage Rating	6 kA
	Overall Depth	85mm
	Special Features	Short Circuit Protection
	Overall Width	71mm
	Overall Dimensions	69 x 71 x 85mm
	Standards Met	CE
	Break Time	Instantaneous

	Select all
	Brand ABB
	Current Rating 20A
	Number of Poles 4
	Trip Sensitivity 30mA
	Series DS203NC
	Circuit Breaker Type RCBO
	Tripping Characteristics Type C
	Rated AC Voltage 400 → 415V
	Mounting Style DIN Rail Mount
	Earth Leakage Protection Type AC
	Overall Length 69mm
	Breaking Capacity at Maximum Voltage Rating 6 kA
	Overall Depth 85mm
	Special Features Short Circuit Protection
	Overall Width 71mm
	Overall Dimensions 69 x 71 x 85mm
	Standards Met CE
	Break Time Instantaneous

COO (Country of Origin):: IT

ABB DS203NC Series RCBO, 20A, 4 Poles - 2CSR256040R1204 DS203NC C20 AC30

This residential circuit breaker by the ABB with a current rating of 20A is a vital electrical safety device. It is designed to provide protection against short-circuit currents, overload, earth fault currents, and indirect contacts. With a trip sensitivity of 30mA, it ensures additional protection against direct contacts.

Features & Benefits

• DIN rail mount design for easy installation
• 4 pole configuration for enhanced safety
• RCBO type combining residual current and overcurrent protection
• Compliance with IEC and EN standards for reliable performance
• Rated current of 20A and rated voltage of 400 to 415 V AC
• Energy limiting class for efficient operation

Applications

• Suitable for residential buildings, commercial spaces, and industrial setups
• Ideal for protecting electrical circuits from various faults
• Used with modular DIN rail products for comprehensive protection

Can it protect against short-circuit currents?

Yes, the ABB RCBO is designed to provide protection against short-circuit currents along with other electrical faults.

Will it fit on a DIN Rail Mount?

Yes, it features a DIN Rail Mount design for easy and secure installation.

Is it suitable for industrial applications?

Yes, the ABB RCBO is ideal for industrial setups to safeguard electrical circuits effectively.

Can it protect against earth fault currents?

Yes, it is designed to protect against earth fault currents, ensuring enhanced electrical safety.

Can it be used in conjunction with other modular DIN rail products?

Yes, this RCBO is compatible with modular DIN rail products for comprehensive protection of electrical circuits.

ABB RCBO, 20A Current Rating, 4P Poles, 30mA Trip Sensitivity, Type C

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