The ABB OFAF0H20 is a dependable 20 A HRC DIN fuse link designed for full-range overcurrent protection in industrial and commercial electrical installations. Part of the ABB OFAF range, it features a gG utilisation category, providing protection against both overload and short-circuit currents.
With a rated current of 20 A and a rated voltage of 500 V AC, the OFAF0H20 is suitable for protecting cables, conductors, distribution circuits and general-purpose electrical equipment. Its high-rupturing-capacity construction provides reliable fault-current interruption for demanding low-voltage applications.
The NH0 / size 0 DIN format enables straightforward integration with compatible industrial fuse bases and switch-fuse equipment. The OFAF0H20 also incorporates dual indication, helping maintenance personnel identify fuse operation during inspection and fault-finding.
Key Advantages
Full-range gG protection against overload and short-circuit currents.
20 A rated current for general-purpose circuit protection.
500 V AC rated voltage for industrial low-voltage systems.
Standard NH0 / size 0 DIN-format construction.
Dual indication for convenient fuse status identification.
Suitable for protecting cables, conductors and general electrical equipment.
Key Features
ABB OFAF HRC DIN fuse link.
20 A rated current.
500 V AC rated voltage.
gG utilisation category.
NH0 / size 0 fuse format.
2.3 W power loss at rated current.
Dual fuse indication.
Blade-contact construction for compatible NH fusegear.
Reliable Full-Range Electrical Circuit Protection
gG fuse links provide full-range protection against both overload and short-circuit currents. This makes them suitable for general-purpose protection of cables, conductors and electrical equipment throughout industrial and commercial low-voltage distribution systems.
The ABB OFAF0H20 combines a 20 A current rating, 500 V AC capability and NH size 0 construction with dual indication for convenient maintenance. Its standard DIN format supports straightforward integration into compatible fusegear used in switchboards, machinery and electrical distribution equipment.
Typical Applications
Industrial power distribution systems.
Electrical switchboards and control panels.
Cable and conductor protection.
Industrial machinery and automation equipment.
General-purpose electrical equipment protection.
NH fuse bases and switch-fuse assemblies.
Technical Specifications
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Fuse Indication
Dual indicator
Series
OFAF
ABB order code
1SCA022627R2100
Product type
HRC DIN fuse link
Fuse system
DIN / NH
Utilisation category
gG
Rated current
20 A
Rated voltage
500 V AC
Fuse size
NH0 / size 0
Power loss
2.3 W
Indication
Dual indication
Net weight
0.21 kg
Protection function
Full-range overload and short-circuit protection
Frequently Asked Questions
What is the ABB OFAF0H20 used for?
The ABB OFAF0H20 is a gG HRC DIN fuse link designed to provide full-range overload and short-circuit protection for cables, conductors and general-purpose electrical circuits.
What is the current rating of the OFAF0H20?
The OFAF0H20 has a rated current of 20 A.
What voltage is the ABB OFAF0H20 rated for?
The OFAF0H20 has a rated voltage of 500 V AC.
What fuse size is the OFAF0H20?
The OFAF0H20 is an NH0 / size 0 DIN fuse link designed for use with compatible industrial fusegear.
What does the gG classification mean?
The gG classification identifies a general-purpose full-range fuse designed to provide protection against both overload and short-circuit currents.
Trusted Industrial Circuit Protection from ABB
ABB OFAF HRC fuse links provide dependable industrial circuit protection, with the OFAF0H20 combining a 20 A rating, 500 V AC capability, NH size 0 construction, dual indication and a gG characteristic for full-range overcurrent protection.
Fuse Indication
Dual indicator
Series
OFAF
ABB order code
1SCA022627R2100
Product type
HRC DIN fuse link
Fuse system
DIN / NH
Utilisation category
gG
Rated current
20 A
Rated voltage
500 V AC
Fuse size
NH0 / size 0
Power loss
2.3 W
Indication
Dual indication
Net weight
0.21 kg
Protection function
Full-range overload and short-circuit protection
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UK delivery
Delivery options
Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.
This productManufacturer Lead Time
Estimated Delivery 5 weeks
Standard delivery
£8 ex VAT · free over £200
UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
Collect from our showroom
Mon–Fri, 8am–5pm
Order and pay online, then collect from our showroom.
Please allow 15–30 minutes after ordering for us to prepare your order.
Northern Ireland, ROI & export
Priced at checkout
We deliver to Northern Ireland, the Republic of Ireland and overseas.
Delivery is calculated at checkout based on your destination.
Orders with mixed availability
Shipped complete
If part of your order is on a lead time, we hold it and send everything together.
Need the in-stock items sooner? Ask us and we can split the delivery.
Business customer returns
Returns & order support
Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.
Stocked items
Request within 30 days
Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.
Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.
Faulty or damaged items
Tell us as soon as possible
Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.
We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.
Made-to-order items
Manufacturer approval needed
Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.
This does not affect claims for faulty goods or items that do not meet the agreed specification.
Let’s get your return sorted.
Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.
The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.
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● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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