RS PRO 20A British Standard Fuse, A1, 550V ac, 44.5mm

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Subtotal (1 pack of 5 units)*

£26.27

(exc. VAT)

£31.525

(inc. VAT)

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Temporarily out of stock
  • 115 unit(s) shipping from 05 December 2025
  • Plus 125 unit(s) shipping from 20 February 2026
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Units
Per unit
Per Pack*
5 - 20£5.254£26.27
25 - 120£4.434£22.17
125 - 245£3.86£19.30
250 - 495£3.472£17.36
500 +£3.336£16.68

*price indicative

RS Stock No.:
521-2551
Brand:
RS PRO
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Brand

RS PRO

Current Rating

20A

Fuse Size

A1

Voltage Rating

550V ac

Fuse Standard

BS 88, IEC 60269

Fixing Centres

44.5mm

Application Category

gM

Tag Width

11.1mm

High Rupture Capacity

Yes

Overall Length

55mm

Body Diameter

17.5mm

Tag Type

Slotted

Body Length

35.6mm

Tag Orientation

Offset

Body Height

35.6mm

Fuse Dimensions

13.7 x 55.2mm

Series

NITD

RoHS Status: Exempt

COO (Country of Origin):
IN

Eaton NITD Series British Standard Fuse, 20A Current Rating, 550V AC Voltage - NITD20M32RS


This British Standard fuse is designed for high reliability and safety in electrical applications. With a current rating of 20A, this fuse is a vital component for protecting circuits in various settings. The fuse measures 52.2mm in length and has a diameter of 13.7mm, making it compatible with numerous fixtures and systems.

Features & Benefits


• High rupture capacity for enhanced circuit protection
• Offset tag orientation for easy installation
• Rated for operation at 550V AC
• Slotted tag type allows flexible fitting options
• Efficient in the gM application category for reliability

Applications


• Utilised in industrial electrical systems for circuit protection
• Ideal for automation and electronics
• Suitable for use in commercial and domestic electrical installations
•Can be used in machinery to safeguard components

What is the significance of the high rupture capacity in this fuse?


The high rupture capacity ensures that the fuse can safely interrupt excessive current without causing explosive or hazardous failures, protecting both the circuit and components effectively.

How does the A1 fuse size benefit installation?


The A1 fuse size makes it a standard size for many electrical applications, allowing for simple replacement and ensuring compatibility with most fuse holders.

What are the primary standards adhered to by this fuse?


This product meets the BS 88 and IEC 60269 standards, ensuring compliance with safety and quality regulations recognised in the electrical industry.

Can this fuse handle surges in current effectively?


Yes, its design and high rupture capacity allow it to manage current surges efficiently, safeguarding connected devices from damage during unexpected overloads.

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