Why Choose the Wöhner 31555 Cylindrical Fuse Holder?
The Wöhner 31555 is a robust 1-pole cylindrical fuse holder designed for 10 × 85 mm photovoltaic fuse links. Rated at 32 A and 1500 V DC, it provides safe, reliable protection for modern high-voltage DC photovoltaic systems. Designed for DIN rail mounting, it offers quick installation and straightforward fuse replacement while maintaining a permanently touch-safe front.
Manufactured by Wöhner, a world-leading specialist in electrical power distribution technology, the 31555 forms part of the SECUR® Panel range. It is engineered specifically for photovoltaic applications using cylindrical fuse links compliant with IEC/EN 60269-6, making it ideal for solar combiner boxes, inverter protection and DC distribution systems.
Its compact design, IP20 front protection, cage clamp terminals and support for conductors up to 25 mm² make the Wöhner 31555 an excellent choice for professional PV installations where safety, reliability and ease of maintenance are essential.
Key Advantages
Designed for 10 × 85 mm photovoltaic fuse links.
32 A rated current.
1500 V DC rated voltage for modern solar installations.
DIN rail mounting for fast installation.
IP20 touch-safe front protection at all times.
Simple and rapid fuse replacement.
Key Features
Wöhner SECUR® Panel fuse holder.
For 10 × 85 mm cylindrical fuse links.
Single-pole design.
32 A IEC rating.
1500 V DC rated voltage.
DIN rail mounting.
Cage clamp terminals.
Suitable for photovoltaic DC protection.
Designed for High-Voltage Photovoltaic Protection
The Wöhner 31555 has been developed specifically for photovoltaic installations operating at up to 1500 V DC. Its touch-safe construction improves operator safety, while DIN rail mounting and front-access fuse carriers allow quick maintenance and minimal system downtime.
Suitable for commercial, industrial and utility-scale solar installations, the holder provides dependable protection for PV strings, combiner boxes and DC distribution equipment using compatible cylindrical fuse links.
Typical Applications
Photovoltaic combiner boxes.
Solar string protection.
PV inverter installations.
Industrial DC distribution.
Renewable energy systems.
Utility-scale solar farms.
Technical Specifications
Current
30 A
Phase
Single Phase
Manufacturer
Wöhner
Model
31555
Part number
31555 000
Product type
Cylindrical fuse holder
Series
SECUR® Panel
Fuse size
10 × 85 mm
Number of poles
1
Rated current (IEC)
32 A
Rated voltage
1500 V DC
Rated impulse withstand voltage
8 kV
Mounting
DIN rail
Protection rating
IP20 (front)
Connection type
Cage clamp terminal
Conductor size
0.75–25 mm² copper
Torque
2.0–2.5 Nm
Dimensions (W × H × D)
22.5 × 130 × 65 mm
Standards
IEC 60269-1, IEC 60269-2, UL 4248-1, UL 4248-19
Frequently Asked Questions
What is the Wöhner 31555 used for?
The Wöhner 31555 is a DIN rail mounted fuse holder designed for 10 × 85 mm cylindrical photovoltaic fuse links.
What voltage is the fuse holder rated for?
The holder is rated for applications up to 1500 V DC.
What size fuse does it accept?
It is designed for 10 × 85 mm cylindrical fuse links.
Is the front of the fuse holder touch safe?
Yes. The Wöhner 31555 provides a permanent IP20 front degree of protection.
Where is the Wöhner 31555 typically installed?
It is commonly installed in photovoltaic combiner boxes, inverter systems and high-voltage DC distribution panels.
Trusted for Professional Photovoltaic Installations
Wöhner SECUR® Panel fuse holders are trusted by solar installers, panel builders and renewable energy engineers for delivering safe, dependable protection in high-voltage photovoltaic systems.
Current
30 A
Phase
Single Phase
Manufacturer
Wöhner
Model
31555
Part number
31555 000
Product type
Cylindrical fuse holder
Series
SECUR® Panel
Fuse size
10 × 85 mm
Number of poles
1
Rated current (IEC)
32 A
Rated voltage
1500 V DC
Rated impulse withstand voltage
8 kV
Mounting
DIN rail
Protection rating
IP20 (front)
Connection type
Cage clamp terminal
Conductor size
0.75–25 mm² copper
Torque
2.0–2.5 Nm
Dimensions (W × H × D)
22.5 × 130 × 65 mm
Standards
IEC 60269-1, IEC 60269-2, UL 4248-1, UL 4248-19
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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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...