Why Choose the Wöhner 31557 D0 Switch Disconnector with LED?
The Wöhner 31557 is a robust 3-pole D0 switch disconnector with integrated LED indication, designed for D01 and D02 fuse links up to 63 A. Part of the renowned SECUR® Panel range, it combines safe load switching with visual blown-fuse indication, enabling rapid fault identification while providing dependable circuit isolation in industrial electrical installations.
Manufactured by Wöhner, a global leader in low-voltage power distribution technology, the 31557 features an operator-independent snap-action switching mechanism that guarantees reliable opening and closing regardless of handle speed. The integrated LED indication simplifies maintenance by immediately identifying an operated fuse, helping reduce downtime in industrial control systems.
Designed for DIN rail mounting, the Wöhner 31557 supports conductor sizes from 1.5 to 35 mm², is rated at 63 A, and provides a permanently IP20 touch-safe front. It is ideally suited to industrial switchboards, machine control panels and commercial power distribution systems requiring reliable three-phase protection.
Key Advantages
Designed for D01 and D02 fuse links up to 63 A.
3-pole switching for three-phase circuits.
Integrated LED blown-fuse indication.
Operator-independent snap-action mechanism.
DIN rail mounting for straightforward installation.
Touch-safe front protection improves operator safety.
Key Features
Wöhner SECUR® Panel switch disconnector.
Three-pole configuration.
63 A rated current.
Integrated LED fuse status indication.
Suitable for D01 and D02 fuse links.
DIN rail mounting.
IP20 front protection.
Industrial-grade construction.
Reliable Three-Phase Circuit Isolation
The Wöhner 31557 provides dependable switching and overcurrent protection for three-phase electrical systems. Its integrated LED indication allows maintenance engineers to identify blown fuse links quickly, while the snap-action mechanism ensures consistent switching performance and dependable isolation.
Its compact DIN rail design makes it suitable for industrial switchgear, distribution boards, motor control centres and OEM machinery where reliable three-phase protection and fast maintenance are essential.
Typical Applications
Industrial control panels.
Motor control centres.
Machine building.
Distribution boards.
OEM electrical equipment.
Commercial switchgear.
Technical Specifications
Current
63 A
Phase
Three Phase
Manufacturer
Wöhner
Model
31557
Part number
31557 000A
Product type
D0 switch disconnector with LED
Series
SECUR® Panel
Number of poles
3
Fuse compatibility
D01 / D02
Maximum fuse current
63 A
Rated operational voltage
400 V AC
Rated insulation voltage (Ui)
800 V
Connection capacity
1.5–35 mm² copper conductors
Mounting
DIN rail
Protection rating
IP20 (front)
Housing width
81 mm
Depth
70 mm
Standards
DIN EN 50274
Frequently Asked Questions
What is the Wöhner 31557 used for?
The Wöhner 31557 is a three-pole DIN rail mounted D0 switch disconnector with integrated LED indication for protecting and isolating three-phase electrical circuits.
What is the maximum current rating?
The switch disconnector has a maximum rated current of 63 A.
Which fuse links are compatible?
The Wöhner 31557 accepts D01 and D02 fuse links.
What does the integrated LED indicate?
The LED provides visual indication when a fitted fuse link has operated, allowing quicker fault diagnosis and maintenance.
Where is the Wöhner 31557 typically installed?
It is commonly installed in industrial switchgear, machine control panels, motor control centres and commercial power distribution systems.
Trusted for Industrial Circuit Protection
Wöhner SECUR® Panel switch disconnectors are trusted by panel builders, OEM manufacturers and industrial electricians for delivering dependable three-phase circuit isolation, rapid fuse indication and reliable long-term performance.
Current
63 A
Phase
Three Phase
Manufacturer
Wöhner
Model
31557
Part number
31557 000A
Product type
D0 switch disconnector with LED
Series
SECUR® Panel
Number of poles
3
Fuse compatibility
D01 / D02
Maximum fuse current
63 A
Rated operational voltage
400 V AC
Rated insulation voltage (Ui)
800 V
Connection capacity
1.5–35 mm² copper conductors
Mounting
DIN rail
Protection rating
IP20 (front)
Housing width
81 mm
Depth
70 mm
Standards
DIN EN 50274
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.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
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Customers supported
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Trusted Manfacturers
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Common questions about our products and support
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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...