The ABB OFAF000H20 is a reliable DIN-type HRC fuse link designed to provide general-purpose overcurrent and short-circuit protection in low-voltage electrical distribution and industrial installations. As part of the ABB OFAF fuse range, it features a gG utilisation category for full-range protection of cables, conductors and electrical equipment.
Manufactured in accordance with the DIN 43620 form factor, the OFAF000H20 uses the compact DIN size 000 / NH000 format for installation in compatible fuse bases and switch-fuse equipment. The OFAF range is designed for dependable circuit protection and incorporates dual indication to assist maintenance personnel in identifying an operated fuse link.
With a rated current of 20 A and a rated voltage of 500 V AC, the OFAF000H20 is suitable for a wide range of low-voltage distribution and industrial circuits. ABB order code 1SCA022627R0740 identifies this specific 20 A DIN size 000 fuse within the OFAF range.
Key Advantages
Reliable gG general-purpose overcurrent and short-circuit protection.
20 A rated current for low-voltage electrical circuits.
500 V AC rated voltage for industrial and distribution applications.
Compact DIN 43620 size 000 / NH000 construction.
Dual indication assists with identification of fuse operation.
Designed for use with compatible DIN-type fuse bases and switch-fuse equipment.
Key Features
ABB OFAF DIN-type HRC fuse link.
20 A rated current.
500 V AC rated voltage.
gG utilisation category for general-purpose protection.
DIN 43620 size 000 / NH000.
Dual indication for convenient status identification.
Approximately 2.4 W power loss at rated current.
Compact 21 mm width.
ABB order code 1SCA022627R0740.
Reliable Protection for Low-Voltage Electrical Circuits
DIN-type gG fuse links provide full-range overcurrent protection against both overload and short-circuit conditions. When excessive current passes through the circuit, the fuse element operates to interrupt the current, helping protect cables, conductors and associated electrical equipment from potentially damaging fault conditions.
The ABB OFAF range is designed for low-voltage electrical distribution and industrial installations. The OFAF000H20 combines a standardised DIN 43620 size 000 format with a 20 A rating and gG characteristics, making it suitable for dependable protection in switchboards, control panels and other electrical distribution equipment.
Typical Applications
Low-voltage electrical distribution systems.
Industrial control panels and switchboards.
Cable and conductor overcurrent protection.
Electrical machinery and automation equipment.
Fuse switches and fuse bases using compatible size 000 fuse links.
Commercial and industrial electrical installations.
Technical Specifications
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Fuse Indication
Dual indicator
Series
OFAF
ABB order code
1SCA022627R0740
Product group
311002-Fuses And Fusebases
Product type
DIN-type HRC fuse link
Fuse utilisation category
gG
Rated current
20 A
Rated voltage
500 V AC
DIN standard / format
DIN 43620
DIN / NH size
000 / NH000
Indication
Dual indication
Power loss
approx. 2.4 W
Width
approx. 21 mm
Weight
approx. 0.12 kg
Application
General-purpose low-voltage circuit protection
Frequently Asked Questions
What is the ABB OFAF000H20 used for?
The ABB OFAF000H20 is a gG DIN-type HRC fuse link used for general-purpose overcurrent and short-circuit protection in low-voltage electrical circuits.
What is the current rating of the ABB OFAF000H20?
The OFAF000H20 has a rated current of 20 A.
What voltage is the ABB OFAF000H20 rated for?
The OFAF000H20 is rated for operation at up to 500 V AC.
What size is the ABB OFAF000H20 fuse?
The OFAF000H20 is a DIN 43620 size 000 / NH000 fuse link designed for compatible fuse bases and switch-fuse equipment.
What does the gG rating of the OFAF000H20 mean?
The gG utilisation category identifies the OFAF000H20 as a general-purpose full-range fuse intended to provide protection against both overload and short-circuit currents.
Trusted ABB Circuit Protection
ABB OFAF DIN-type fuse links provide dependable overcurrent and short-circuit protection for low-voltage electrical systems, combining established gG fuse technology with a standardised DIN format for industrial and electrical distribution applications.
Fuse Indication
Dual indicator
Series
OFAF
ABB order code
1SCA022627R0740
Product group
311002-Fuses And Fusebases
Product type
DIN-type HRC fuse link
Fuse utilisation category
gG
Rated current
20 A
Rated voltage
500 V AC
DIN standard / format
DIN 43620
DIN / NH size
000 / NH000
Indication
Dual indication
Power loss
approx. 2.4 W
Width
approx. 21 mm
Weight
approx. 0.12 kg
Application
General-purpose low-voltage circuit protection
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