Wöhner 31303 CUSTO Panel single-pole D0 panel-mounted fuse base for D02 (E18) fuse links, rated at 63 A and 400 V AC with DIN rail mounting and touch-protected construction.
£4.40
The Wöhner 31303 is a high-quality single-pole D0 panel-mounted fuse base designed for D02 (E18) fuse links up to 63 A. Part of the dependable Wöhner CUSTO® Panel range, it provides reliable overcurrent protection for industrial control panels, switchgear and low-voltage power distribution systems. Its touch-protected construction improves operator safety while ensuring dependable long-term operation.
Designed for installation on a standard DIN mounting rail, the Wöhner 31303 features a generous cage clamp terminal, a wide conductor clamping range and an integrated holder for circuit identification labels. Its compact design makes it ideal where panel space is limited without compromising installation quality.
Rated at 63 A and 400 V AC, the Wöhner 31303 accepts D02 (E18) fuse links manufactured in accordance with IEC / HD 60269-3. The fuse base is approved by VDE and DNV GL, making it suitable for demanding industrial and commercial electrical installations.
The Wöhner 31303 provides dependable protection for industrial circuits using D02 fuse links up to 63 A. Its touch-safe construction, generous conductor capacity and compact DIN rail design make it ideal for control panels, machinery and low-voltage distribution systems where reliability and safety are essential.
The integrated label holder simplifies circuit identification during commissioning and maintenance, while the wide terminal capacity supports flexible panel wiring for OEMs and panel builders.
| Manufacturer | Wöhner |
|---|---|
| Series | CUSTO® Panel |
| Model | 31303 |
| Alternative SKU | 31303000 |
| Product type | D0 panel-mounted fuse base |
| Fuse size | D02 (E18) |
| Fuse standard | IEC / HD 60269-3 |
| Number of poles | 1 |
| Rated current | 63 A |
| Rated voltage | 400 V AC |
| Rated voltage (DC) | 250 V DC |
| Maximum voltage | 440 V AC / 262 V DC |
| Impulse withstand voltage | 6 kV |
| Approved fuse operating class | gG |
| Permitted fuse-link power dissipation | 5.5 W |
| Typical power dissipation (80% load) | 2.6 W |
| Power dissipation (full load) | 4.0 W |
| Short-circuit withstand | 50 kA (with suitable fuse) |
| Protection | Touch protected |
| Mounting type | DIN mounting rail |
| Terminal type | Cage clamp connection |
| Screw drive | PZ2 |
| Wire stripping length | 10 mm |
| Conductor capacity | 1.5–35 mm² copper |
| Tightening torque | 2.5–3.0 Nm |
| Dimensions (W × H × D) | 27 × 68 × 55 mm |
| Weight | approx. 76 g |
| Maximum operating temperature | 55 °C |
| Material | Halogen-free plastic |
| Approvals | VDE, DNV GL |
| EAN | 4021267313036 |
It is designed for D02 (E18) fuse links manufactured in accordance with IEC / HD 60269-3.
The Wöhner 31303 has a rated current of 63 A.
It mounts directly onto a standard 35 mm DIN mounting rail using a compact panel-mounted design.
Yes. The Wöhner 31303 incorporates a touch-protected design to improve operator safety during installation and servicing.
No. The Wöhner 31303 is designed for copper conductors only and is not suitable for aluminium cables.
Wöhner CUSTO® Panel fuse bases are trusted by panel builders, OEM manufacturers and industrial engineers for dependable circuit protection, efficient installation and reliable long-term performance in demanding electrical applications.
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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...