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

View all Tag Fuses
Bulk discount available

Subtotal (1 pack of 5 units)*

£23.11

(exc. VAT)

£27.73

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • 115 unit(s) ready to ship
  • Plus 275 unit(s) shipping from 23 January 2026
  • Plus 275 unit(s) shipping from 20 February 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

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

Body Diameter

13.7mm

Tag Type

Bolted

Body Length

35mm

Tag Orientation

Offset

Body Height

35mm

Offset Distance

73mm

Series

AAO

Fuse Dimensions

13.7 x 35mm

RoHS Status: Exempt

COO (Country of Origin):
IN

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.

Related links