Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	ABB
	Product Type	Miniature Circuit Breaker
	Number of Poles	4
	Current Rating	40A
	Tripping Characteristics	UC-K
	Rated DC Voltage	1000V dc
	Breaking Capacity	50kA
	Series	S804S
	Terminal Type	Screw
	IP Rating	IP20
	Standards/Approvals	IEC/EN 60947-2
	Width	106mm
	Depth	82.5mm
	Height	95mm
	Reset Actuator Type	I/O Actuator

	Select all
	Brand ABB
	Product Type Miniature Circuit Breaker
	Number of Poles 4
	Current Rating 40A
	Tripping Characteristics UC-K
	Rated DC Voltage 1000V dc
	Breaking Capacity 50kA
	Series S804S
	Terminal Type Screw
	IP Rating IP20
	Standards/Approvals IEC/EN 60947-2
	Width 106mm
	Depth 82.5mm
	Height 95mm
	Reset Actuator Type I/O Actuator

COO (Country of Origin):: CH

ABB S800S-UC Series Miniature Circuit Breaker, 40A Current, 1000V rated DC voltage - 2CCS864001R1557

This miniature circuit-breaker is designed to protect DC electrical circuits by interrupting fault currents in industrial installations. It operates with a four-pole configuration and a specific tripping characteristic suited to DC applications, providing controlled disconnection where high DC voltages are present. The device is built for panel or system integration in controlled-environment switchgear where finger-safe protection is required.

Features and Benefits:

• 50kA breaking capacity limits fault energy and protects upstream equipment
• UC-K tripping characteristic provides predictable DC fault response
• Screw terminals enable straightforward secure conductor connections
• Reset I/O actuator allows visible manual switching and resetting
• IP20 enclosure rating ensures Basic finger protection in cabinets

Applications

• Suitable for DC solar array string protection up to 1000V
• Used with industrial control gear requiring four-pole isolation
• Ideal for battery-bank distribution systems
• Can be used for protecting motor-drive DC supply rails
• Used for sectionalising DC busbars in commercial installations

What pole configuration does it provide for isolation?

It provides four poles to isolate all conductors simultaneously for complete circuit disconnection.

How does the device perform under high fault currents?

It interrupts fault currents up to 50kA breaking capacity to reduce thermal and mechanical stress on installations.

What Terminal type is used for conductor attachment?

Screw terminals are provided to secure conductors using standard screw-tightening methods.

What operating control is available for manual intervention?

A reset I/O actuator is fitted to permit manual switching and Visual indication of state.

Which standard governs its design for switching applications?

It is designed to meet the requirements of IEC/EN 60947-2 for low-voltage switching devices.

ABB S804S Miniature Circuit Breaker, 4-Pole, 40A, UC-K, 1000 V dc DC, 50 kA Breaking Capacity

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