Schneider Electric Residual Current Circuit Breaker with Overload Protection, 20 A Current Rating, 4-Pole, 30 mA Trip

RS Stock No.:: 276-9126
Mfr. Part No.:: A9D57420
Manufacturer:: Schneider Electric

Schneider Electric Residual Current Circuit Breaker with Overload Protection, 20 A Current Rating, 4-Pole, 30 mA Trip

Subtotal (1 unit)*

SGD1,237.78

(exc. GST)

SGD1,349.18

(inc. GST)

FREE delivery for orders over $150, or create a business account to enjoy free delivery from just $28

In Stock

Plus 4 unit(s) shipping from 02 February 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 +	SGD1,237.78

*price indicative

RS Stock No.:: 276-9126
Mfr. Part No.:: A9D57420
Manufacturer:: Schneider Electric

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Schneider Electric
	Product Type	Residual Current Circuit Breaker with Overload Protection
	Current Rating	20 A
	Range	Acti9
	Number of Poles	4
	Trip Sensitivity	30mA
	Tripping Characteristics	Type AC
	Mount Type	DIN Rail
	Rated AC Voltage	415 V ac
	Terminal Type	Tunnel
	Earth Leakage Protection Type	AC
	Width	72 mm
	Height	86mm
	Depth	78mm
	Breaking Capacity	6000A
	Tripping Mechanism	Thermomagnetic
	Standards/Approvals	EN/IEC 61009-2-1, EN/IEC 60947-2
	Application	Distribution

	Select all
	Brand Schneider Electric
	Product Type Residual Current Circuit Breaker with Overload Protection
	Current Rating 20 A
	Range Acti9
	Number of Poles 4
	Trip Sensitivity 30mA
	Tripping Characteristics Type AC
	Mount Type DIN Rail
	Rated AC Voltage 415 V ac
	Terminal Type Tunnel
	Earth Leakage Protection Type AC
	Width 72 mm
	Height 86mm
	Depth 78mm
	Breaking Capacity 6000A
	Tripping Mechanism Thermomagnetic
	Standards/Approvals EN/IEC 61009-2-1, EN/IEC 60947-2
	Application Distribution

Datasheet - A9D57420

RoHS Status: Exempt

COO (Country of Origin):: PT

Schneider Electric Acti9 RCBO, 20A Current Rating, 30mA Trip Sensitivity - A9D57420

This RCBO is a residual current breaker designed for effective electrical safety. It operates with a current rating of 20A and provides protection with a trip sensitivity of 3mA. The device features a compact design, measuring 86mm in height, 72mm in width, and 78mm in depth.

Features & Benefits

• Combines overcurrent and earth leakage protection for safety

• Thermal-magnetic technology ensures reliable operation

• Breaking capacity of 6000A protects against overloading

• Easy installation with clip-on mounting for DIN rails

• Status indicators (ON, OFF, fault trip) for user awareness

Applications

• Used for protecting circuits in residential electrical systems

• Ideal for industrial with multi-pole configurations

• Suitable for commercial buildings requiring electrical safety devices

• Employed in automation and control systems for effective protection

What types of electrical circuits can be safely monitored with this device?

This device is suitable for monitoring AC networks, offering comprehensive protection in residential, commercial, and industrial circuits, effectively safeguarding against earth faults and overcurrents.

How does the thermal-magnetic technology enhance the safety features?

Thermal-magnetic technology allows the RCBO to respond quickly to overloads while providing thermal protection against prolonged current flows, effectively preventing fire risks and equipment damage.

What environmental conditions can this device withstand?

It operates effectively in ambient temperatures ranging from -25 to 40°C and is designed to endure high humidity levels of up to 95% at 55°C, making it suitable for diverse settings.