TE Connectivity 0.25 to 20 A W28 Thermal Circuit Breaker - 1-Pole, Direct, 8A Current Rating, 1000 A, 240V ac, 32 V dc

RS Stock No.:: 164-8779
Mfr. Part No.:: W28-XQ1A-8
Brand:: TE Connectivity

TE Connectivity 0.25 to 20 A W28 Thermal Circuit Breaker - 1-Pole, Direct, 8A Current Rating, 1000 A, 240V ac, 32 V dc

Subtotal (1 bag of 100 units)*

£355.30

(exc. VAT)

£426.40

(inc. VAT)

FREE delivery for orders over £60.00

In Stock

Plus 200 unit(s) shipping from 13 April 2026
Plus 400 unit(s) shipping from 18 September 2026

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

Units	Per unit	Per Bag*
100 +	£3.553	£355.30

*price indicative

RS Stock No.:: 164-8779
Mfr. Part No.:: W28-XQ1A-8
Brand:: TE Connectivity

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	TE Connectivity
	Product Type	Thermal Circuit Breaker
	Current Rating	8A
	Series	W28
	Range	0.25 to 20 A
	Number of Poles	1
	Width	17.5mm
	Mount Type	Direct
	Terminal Type	Screw
	Mount Hole Size	3.33 mm
	Tripping Mechanism	Thermal Magnetic
	Reset Actuator Type	Toggle Switch
	Tripping Characteristics	May trip between 101% and 174%, must trip at 175% within 1 hour at +25°C, must trip at 135% within 1 hour at +25°C, May trip between 101% and 134%
	Rated AC Voltage	240V ac
	Standards/Approvals	CE, RoHS
	Rated DC Voltage	32V dc
	Breaking Capacity	1000A
	Break Time	Medium

	Select all
	Brand TE Connectivity
	Product Type Thermal Circuit Breaker
	Current Rating 8A
	Series W28
	Range 0.25 to 20 A
	Number of Poles 1
	Width 17.5mm
	Mount Type Direct
	Terminal Type Screw
	Mount Hole Size 3.33 mm
	Tripping Mechanism Thermal Magnetic
	Reset Actuator Type Toggle Switch
	Tripping Characteristics May trip between 101% and 174%, must trip at 175% within 1 hour at +25°C, must trip at 135% within 1 hour at +25°C, May trip between 101% and 134%
	Rated AC Voltage 240V ac
	Standards/Approvals CE, RoHS
	Rated DC Voltage 32V dc
	Breaking Capacity 1000A
	Break Time Medium

Datasheet

TE Connectivity RCBO

The TE connectivity RCBO's is a range of products with an electric rating of 250VAC, 32VDC, and 8A. It is a thermal-magnetic convertible. All CBEs have blade terminals and have an insulation resistance greater than 100Mohm. Suitable for most residential, commercial, and light industrial.

Features and Benefits

• Button extends for visual trip indication

• Flush mount circuit breaker models to protect apparatus

• Front panel mount and fuse holder type

• Labour saving snap in mounting

• Push to reset

• Replaces slow blow glass cartridge fuse

• Resettable

• Valued for their thermal protection of small electronic assemblies

Certifications

• VDE not available on 16A and 20A W28 only

• UL 1077 listed

• E 69543

• CSA

• LR 15734

• CS 2190N

W28 series thermal cut-outs

Flush-mount circuit breaker models to protect apparatus.

Valued for their thermal protection of small electronic assemblies.

Front panel mount.

Fuse holder type.

Resettable.

Thermal Magnetic Convertible

All CBEs have blade terminals and have an insulation resistance greater than 100MΩ (MegaOhms).

Approvals

UL 1077, E 69543, CSA,
LR 15734, CS 2190N