Wöhner 31514 Mersen A4J Class J fast-acting cylindrical fuse link rated at 50 A, 600 V AC and 300 V DC with a 200 kA AC interrupting capacity for industrial branch-circuit protection.
£56.17
The Wöhner 31514 is a premium Class J fast-acting cylindrical fuse link engineered for rapid overcurrent and short-circuit protection in industrial branch circuits. Manufactured using the proven Mersen A4J fuse series, it complies with UL 248-1 and UL 248-8 standards, making it ideal for industrial control panels, switchgear, motor control centres and OEM machinery.
Rated at 50 A, the Wöhner 31514 operates at 600 V AC and 300 V DC, providing fast fault interruption to protect conductors and sensitive electrical equipment from overloads and short circuits. Its fast-acting characteristic ensures rapid isolation of fault currents where immediate protection is essential.
Constructed with a durable porcelain body, this compact Class J 27 × 60 mm fuse delivers a 200 kA AC interrupting capacity and 100 kA DC SCCR, making it suitable for demanding industrial electrical installations with high prospective fault currents.
The Wöhner 31514 is designed to interrupt fault currents almost instantaneously, helping to minimise equipment damage, reduce downtime and improve electrical safety. Its fast-acting characteristic makes it particularly suitable for branch circuits protecting control equipment, automation systems and sensitive industrial electrical components.
With its compact Class J construction, high interrupting capacity and recognised UL and CSA approvals, the Wöhner 31514 is an excellent choice for industrial automation, electrical distribution equipment, OEM machinery and switchgear requiring dependable branch-circuit protection.
| Current | 50 A |
|---|---|
| Manufacturer | Wöhner |
| Model | 31514 |
| Part number | 31514 000A |
| Type number | A4J |
| Product type | Class J fast-acting fuse link |
| Rated current | 50 A |
| Rated voltage AC | 600 V AC |
| Rated voltage DC | 300 V DC |
| Rated frequency | 50 / 60 Hz |
| Fuse size | Class J, 27 × 60 mm |
| Operating characteristic | Fast acting |
| Interrupting capacity AC | 200 kA |
| Interrupting capacity DC | 100 kA |
| Standards | UL 248-1, UL 248-8 |
| Approvals | UL, CSA |
| UL file | E2137 |
| CSA file | 12636 |
| Body material | Porcelain |
| Halogen-free | Yes |
| Dimensions (W × H × D) | 27 × 60 × 27 mm |
| Weight | Approx. 8.5 g |
| Pack quantity | 10 |
| EAN | 4021267315146 |
The Wöhner 31514 provides fast-acting overcurrent and short-circuit protection for industrial branch circuits and electrical equipment.
The fuse has a rated current of 50 A.
The fuse is rated for 600 V AC and 300 V DC applications.
Fast-acting Class J fuses rapidly interrupt overloads and short circuits, helping protect conductors and sensitive industrial equipment before damage can occur.
The Wöhner 31514 is designed for installation in a compatible Class J 27 × 60 mm fuse holder.
Wöhner Class J fuse links are trusted by panel builders, OEM manufacturers and industrial maintenance professionals for delivering dependable branch-circuit protection, high fault-current performance and long-term operational reliability.
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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.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...