MPN

RS PRO 125A British Standard Fuse, A4, 415V ac, 93.7mm

RS Stock No.:: 521-2719
Brand:: RS PRO

RS PRO 125A British Standard Fuse, A4, 415V ac, 93.7mm

Bulk discount available

Subtotal (1 unit)*

£33.70

(exc. VAT)

£40.44

(inc. VAT)

FREE delivery for orders over £50.00

In Stock

21 unit(s) ready to ship
Plus 32 unit(s) shipping from 21 November 2025
Plus 45 unit(s) shipping from 16 January 2026

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

Units	Per unit
1 - 4	£33.70
5 - 24	£28.48
25 - 49	£24.77
50 - 99	£22.34
100 +	£21.37

*price indicative

Alternative

This product is not currently available. Here is our alternative recommendation.

Eaton 125A British Standard Fuse, A4, 415V ac, 94mm

RS Stock No.: 139-956

Each

£24.90

(exc. VAT)

£29.88

(inc. VAT)

RS Stock No.:: 521-2719
Brand:: RS PRO

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	RS PRO
	Current Rating	125A
	Fuse Size	A4
	Voltage Rating	415V ac
	Fuse Standard	BS 88, IEC 269
	Fixing Centres	93.7mm
	Application Category	gG
	Tag Width	19mm
	High Rupture Capacity	Yes
	Overall Length	110mm
	Tag Type	Bolted
	Body Diameter	31mm
	Body Length	47mm
	Tag Orientation	Offset
	Body Width	31mm
	Body Height	31mm
	Fuse Dimensions	31 x 110mm
	Series	DEO
	Offset Distance	94mm

	Select all
	Brand RS PRO
	Current Rating 125A
	Fuse Size A4
	Voltage Rating 415V ac
	Fuse Standard BS 88, IEC 269
	Fixing Centres 93.7mm
	Application Category gG
	Tag Width 19mm
	High Rupture Capacity Yes
	Overall Length 110mm
	Tag Type Bolted
	Body Diameter 31mm
	Body Length 47mm
	Tag Orientation Offset
	Body Width 31mm
	Body Height 31mm
	Fuse Dimensions 31 x 110mm
	Series DEO
	Offset Distance 94mm

Eaton DEO Series British Standard Fuse, 125A Current Rating, 415V AC Voltage Rating - DEO125RS

This British standard fuse is designed for high-capacity applications requiring reliable circuit protection. With a current rating of 125A and a voltage rating of 415V AC, it effectively safeguards electrical systems while conforming to BS 88 and IEC 269 standards. The fuse features dimensions of 31 x 110mm, facilitating seamless integration into existing setups. Its A4 size allows for straightforward installation with bolted tag connections.

Features & Benefits

• High rupture capacity ensures reliability in fault conditions
• gG classification for versatile protection in diverse applications
• Bolted tag type facilitates secure and easy mounting
• Fixed dimensions simplify compatibility with existing installations
• Offset tag orientation enhances fit in confined spaces
• Robust design supports operational integrity in challenging environments

Applications

• Utilised in industrial settings for equipment overload protection
• Suitable for use in motor control circuits and machinery
• Essential for safeguarding power distribution systems
• Employed in commercial installations where high currents are present

What are the operational advantages of a high rupture capacity fuse?

High rupture capacity fuses ensure minimal damage during overloads by effectively interrupting excessive currents, protecting connected components from potential harm and reducing downtime.

How does the gG classification enhance the fuse's application versatility?

The gG classification allows this fuse to be used in both non-inductive and inductive loads, making it suitable for a wide range of electrical systems.

What installation considerations should be made for the bolted tag type?

The bolted tag type requires secure mounting to ensure proper contact without risk of loosening, which guarantees continued effectiveness in circuit protection.

Can this fuse be integrated into existing electrical systems without modifications?

Yes, its standard dimensions and compatibility with bolted tag fittings enable seamless integration into most existing electrical systems without the need for modifications.

What is the significance of the offset tag orientation in installations?

The offset tag orientation allows for flexibility in installation even in limited space scenarios, providing ease of access for maintenance while ensuring a secure fit.

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