MPN

RS PRO 20A British Standard Fuse, A2, 550V ac, 73mm

RS Stock No.:: 521-2595
Brand:: RS PRO

RS PRO 20A British Standard Fuse, A2, 550V ac, 73mm

Save 34% when you buy 500 units

Subtotal (1 pack of 5 units)*

£23.11

(exc. VAT)

£27.73

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

175 unit(s) ready to ship
Plus 275 unit(s) shipping from 23 January 2026

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

Units	Per unit	Per Pack*
5 - 20	£4.622	£23.11
25 - 120	£3.994	£19.97
125 - 245	£3.634	£18.17
250 - 495	£3.54	£17.70
500 +	£3.05	£15.25

*price indicative

RS Stock No.:: 521-2595
Brand:: RS PRO

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	RS PRO
	Current Rating	20A
	Fuse Size	A2
	Voltage Rating	550V ac
	Fuse Standard	BS 88, IEC 269
	Fixing Centres	73mm
	Application Category	gG
	Tag Width	8.7mm
	High Rupture Capacity	Yes
	Overall Length	85mm
	Tag Type	Bolted
	Body Diameter	13.7mm
	Tag Orientation	Offset
	Body Length	35mm
	Body Height	35mm
	Offset Distance	73mm
	Fuse Dimensions	13.7 x 35mm
	Series	AAO

	Select all
	Brand RS PRO
	Current Rating 20A
	Fuse Size A2
	Voltage Rating 550V ac
	Fuse Standard BS 88, IEC 269
	Fixing Centres 73mm
	Application Category gG
	Tag Width 8.7mm
	High Rupture Capacity Yes
	Overall Length 85mm
	Tag Type Bolted
	Body Diameter 13.7mm
	Tag Orientation Offset
	Body Length 35mm
	Body Height 35mm
	Offset Distance 73mm
	Fuse Dimensions 13.7 x 35mm
	Series AAO

RS PRO British Standard Fuse, 20A Current Rating, 550V AC Voltage Rating

This British Standard fuse is designed for use in critical electrical applications, ensuring enhanced safety and reliability. With a current rating of 20A and accommodating voltages up to 550V AC, this high rupture capacity fuse is tailored for both industrial and commercial use. Measuring 13.7 x 35 mm, it adheres to the BS 88 and IEC 269 standards, making it a dependable choice for professionals in the electrical field.

Features & Benefits

• High rupture capacity allows for effective handling of fault currents
• Rated at 20A, suitable for standard electrical applications
• Bolted tag design enhances secure connections in electrical installations
• Offset tag orientation facilitates straightforward mounting and installation
• Application category gG improves operational efficiency in various circuits

Applications

• Ideal for protecting electrical circuits in industrial machinery
• Suitable for use in motor control and automation systems
• Utilised in power distribution networks to prevent overloads
• Effective in electrical panels to enhance circuit safety

What voltage ratings can be expected from this fuse?

This fuse is rated for 550V AC, making it suitable for diverse electrical applications where higher voltage ratings are necessary to ensure safety.

How does the high rupture capacity of this fuse benefit circuit protection?

The high rupture capacity ensures that in the event of a fault, the fuse can safely interrupt high fault currents without risk of explosion or damage to the surrounding components.

Can this fuse be used in conjunction with various types of electrical equipment?

Yes, its compliance with BS 88 and IEC 269 standards means it can be effectively used with a wide range of electrical equipment and installations across various sectors.

What is the significance of the gG application category for this fuse?

The gG application category indicates that this fuse is designed for general-purpose applications, providing reliable overcurrent protection in non-specific circuit environments.

How does the bolted tag design improve the performance of this fuse?

The bolted tag design allows for a secure and stable connection to the circuit, reducing the risk of accidental disconnection and improving the overall safety and performance of the installation.

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