RS PRO 100A British Standard Fuse, A3, 550V ac, 73.5mm

Bulk discount available

Subtotal (1 unit)*

£16.94

(exc. VAT)

£20.33

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • 39 unit(s) ready to ship
  • Plus 80 unit(s) shipping from 20 February 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 - 4£16.94
5 - 24£15.13
25 - 49£14.10
50 - 99£13.22
100 +£10.61

*price indicative

RS Stock No.:
521-2674
Distrelec Article No.:
304-04-702
Brand:
RS PRO
Find similar products by selecting one or more attributes.
Select all

Brand

RS PRO

Current Rating

100A

Fuse Size

A3

Voltage Rating

550V ac

Fuse Standard

BS 88, IEC 269

Fixing Centres

73.5mm

Application Category

gG

Tag Width

12.7mm

High Rupture Capacity

Yes

Overall Length

95mm

Tag Type

Bolted

Body Diameter

21mm

Tag Orientation

Offset

Body Length

54.5mm

Body Height

22.3mm

Series

OSD

Fuse Dimensions

21 x 54.5mm

Offset Distance

73mm

RoHS Status: Exempt

COO (Country of Origin):
IN

Eaton OSD Series British Standard Fuse, 100A Current Rating, 550V AC Voltage Rating - OSD100RS


This Fuse is designed for superior performance in general industrial applications, including power distribution and cable protection. It features an overall length of 95mm and a body diameter of 21mm, ensuring compatibility with standard fittings. The high rupture capacity ensures robust operation under challenging conditions, making it a reliable choice for professional use.

Features & Benefits


• Good peak let-through current limitation enhances system safety
• Designed for a selective coordination ratio of 1:1:6
• Suitable for use in RoHS compliant applications
• Bolted tag design simplifies installation and maintenance

Applications


• Used for safeguarding electrical machinery and installations
• Effective in power distribution systems for enhanced safety
• Ideal for cable protection in industrial environments
• Can be used with a wide range of fuse holders for flexibility

What is the significance of the high rupture capacity?


The high rupture capacity allows the fuse to manage short-circuit currents effectively, protecting the downstream equipment from damage during fault conditions. This feature enhances overall system reliability and safety.

How does the gG characteristic benefit cable protection?


The gG characteristic is specifically designed to protect cables by providing a delayed response to overload conditions, preventing nuisance tripping while still offering protection against harmful fault currents.

What requirements should the fuse holder fulfil?


The selected fuse holder must be compatible with bolted tag designs, ensuring a secure connection. Ordering separately, holders like the CM100F (Camaster) are recommended for optimal performance.

What breaking capacity should I consider when using this fuse?


This fuse's breaking capacity is rated at 80kA, making it suitable for high fault current scenarios. Ensure that the chosen application environment can accommodate this specification for safety and compliance.

Related links