Free Delivery on all orders over £99*

Mercury 6 x 32mm F6A Quick Blow Fuses - 250V IEC Certified

£149
The RRP is the manufacturer's recommended retail price of the item.
Limited Stock
We are an Independent UK Company
Price match. Found it cheaper? Contact us
Trade Discount Available
Description

The Mercury F6A is a 6 x 32mm quick blow fuse rated at 6A and 250V, designed to provide fast-acting overcurrent protection in electrical circuits. The fuse consists of a glass tube with metal end caps and an internal fuse wire that melts rapidly when current exceeds the 6A rating, breaking the circuit within milliseconds to protect connected equipment from damage.

Quick blow fuses are used where sensitive electronics or low-tolerance circuits require immediate fault clearing rather than gradual protection. Common applications include power supplies for audio equipment, lighting control circuits, small domestic appliances, and protective circuits in distribution boards. The 6 x 32mm size is a standard IEC format that fits most European and international fuse holders, panel mounts and inline fuse carriers.

The glass tube construction allows visual inspection of the fuse wire to confirm whether the fuse has blown without needing a multimeter. The 250V rating covers both UK 230V mains circuits and lower-voltage DC applications down to 12V, making the fuse suitable for a range of AC and DC installations. IEC certification confirms compliance with international safety standards for fuse construction and performance characteristics.

Frequently Asked

What's the difference between quick blow and slow blow fuses?

Quick blow fuses like the Mercury F6A respond immediately to overcurrent, breaking the circuit within milliseconds. Slow blow fuses tolerate brief current surges (such as motor start-up) before blowing. Use quick blow fuses where sensitive electronics need immediate protection from overcurrent events.

Can this fuse be used in 12V DC circuits?

Yes. The 250V rating is the maximum voltage the fuse can safely interrupt. Lower-voltage circuits including 12V, 24V and 48V DC are well within the fuse's capability, provided the current does not exceed 6A.

How do I know if the fuse has blown?

The glass tube allows you to see the internal fuse wire. If the wire is intact and continuous, the fuse is good. If the wire is broken or the glass interior is blackened, the fuse has blown and needs replacing.

Are these fuses sold individually or in packs?

Mercury fuses are typically supplied in packs. Check the quantity field on the product page to confirm how many fuses are included in the listed price.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

See it lit, in person

Lighting looks different in a real room. Come and see our range at our showrooms in Birmingham, Hong Kong and Dubai, or talk to our design team wherever you are.

Niori lighting showroom trailer video with closeups of alabaster lighting

Why Niori

Over 20 years lighting homes worldwide

We are a specialist lighting and mirror retailer with showrooms in Birmingham, Hong Kong and Dubai, shipping to customers around the world. Our own design team is here to help, from first idea to final fitting.

Genuine products

An authorised stockist

Every product arrives brand new with the full manufacturer warranty. Found it cheaper elsewhere? Ask us about a price match.

Ordering with us

Free delivery over £99

Free delivery on orders over £99, in the UK and worldwide. Easy returns within 14 days, subject to our returns policy. Full manufacturer warranty included.

Design help

Not sure what you need?

Our design team can help you plan your lighting, share photos and videos of stock, and send samples worldwide. Book a showroom visit in Birmingham, Hong Kong or Dubai, or ask about our lighting design service.

Our Reviews

From first click to final installation, our customers share how Niori lights up their spaces. Read their words and envision what’s possible for yours.

Featured Projects

Step into our portfolio and see how we transform homes, restaurants, and commercial spaces and more, worldwide. Click here for a closer look at our latest projects.

Description

The Mercury F6A is a 6 x 32mm quick blow fuse rated at 6A and 250V, designed to provide fast-acting overcurrent protection in electrical circuits. The fuse consists of a glass tube with metal end caps and an internal fuse wire that melts rapidly when current exceeds the 6A rating, breaking the circuit within milliseconds to protect connected equipment from damage.

Quick blow fuses are used where sensitive electronics or low-tolerance circuits require immediate fault clearing rather than gradual protection. Common applications include power supplies for audio equipment, lighting control circuits, small domestic appliances, and protective circuits in distribution boards. The 6 x 32mm size is a standard IEC format that fits most European and international fuse holders, panel mounts and inline fuse carriers.

The glass tube construction allows visual inspection of the fuse wire to confirm whether the fuse has blown without needing a multimeter. The 250V rating covers both UK 230V mains circuits and lower-voltage DC applications down to 12V, making the fuse suitable for a range of AC and DC installations. IEC certification confirms compliance with international safety standards for fuse construction and performance characteristics.

Frequently Asked

What's the difference between quick blow and slow blow fuses?

Quick blow fuses like the Mercury F6A respond immediately to overcurrent, breaking the circuit within milliseconds. Slow blow fuses tolerate brief current surges (such as motor start-up) before blowing. Use quick blow fuses where sensitive electronics need immediate protection from overcurrent events.

Can this fuse be used in 12V DC circuits?

Yes. The 250V rating is the maximum voltage the fuse can safely interrupt. Lower-voltage circuits including 12V, 24V and 48V DC are well within the fuse's capability, provided the current does not exceed 6A.

How do I know if the fuse has blown?

The glass tube allows you to see the internal fuse wire. If the wire is intact and continuous, the fuse is good. If the wire is broken or the glass interior is blackened, the fuse has blown and needs replacing.

Are these fuses sold individually or in packs?

Mercury fuses are typically supplied in packs. Check the quantity field on the product page to confirm how many fuses are included in the listed price.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.