Why Choose the Wöhner 33620 NH In-Line Fuse Switch-Disconnector?
The Wöhner 33620 is a robust NH in-line fuse switch-disconnector designed to provide reliable switching, electrical isolation and fuse protection in industrial low-voltage power distribution systems. Part of the advanced Wöhner QUADRON® 185Power Speed series, this NH size 00 device is engineered for professional switchgear assemblies, distribution panels and busbar installations.
The device features an operator-independent snap-action mechanism that completes the switching operation consistently, regardless of how quickly the operating handle is moved. Integrated fuse monitoring helps operators identify fuse status and electrical faults, supporting faster maintenance and improved system availability.
With a rated current of 160 A and a rated operational voltage of 400 V AC, the Wöhner 33620 is suitable for demanding industrial power distribution applications. Its flat-format construction, bottom M8 connection and CrossLink interface enable efficient installation within compatible 185 mm busbar systems.
Cover can be locked with up to three padlocks when switched off.
Touchable components are voltage-free when the cover is open.
Monitored Fuse Protection and Safe Power Isolation
NH fuse switch-disconnectors combine high-capacity overcurrent protection with dependable circuit isolation. When fitted with compatible NH fuse links, the Wöhner 33620 helps protect electrical equipment, conductors and distribution circuits against overloads and short circuits.
The integrated fuse monitoring system enables the condition of installed fuse links to be monitored as part of a wider control or protection system. Its operator-independent switching mechanism, lockable cover and touch-safe design make the device particularly suitable for industrial installations where safe maintenance and reliable switching are essential.
Typical Applications
Industrial low-voltage switchboards.
185 mm busbar power distribution systems.
Main and sub-distribution panels.
Motor control centres.
Manufacturing and production facilities.
Commercial building power distribution.
Renewable energy and infrastructure installations.
Panel-building and industrial automation projects.
Technical Specifications
Manufacturer
Wöhner
Series
QUADRON® 185Power Speed
Model
33620
Full manufacturer SKU
33620000A
Type number
QS185-00
Product type
NH in-line fuse switch-disconnector
Fuse sizes
NH 000 and NH 00
Number of poles
3
Rated current
160 A
Rated operational voltage
400 V AC
Rated insulation voltage
400 V AC
Rated impulse withstand voltage
4 kV
Utilisation category
AC-23B
Conditional short-circuit current
up to 120 kA at 400 V AC
Permitted fuse-link power dissipation
12 W
Connection position
Bottom
Connection type
M8 CrossLink connection
Fuse monitoring
Integrated
Compatible busbars
30, 40, 60, 80, 100 and 120 × 10 mm
Mounting system
185Power busbar system
Dimensions (W × H × D)
approx. 50 × 859 × 222 mm
Weight
approx. 4.49 kg
Standards
IEC 60947-1 and IEC 60947-3
ETIM classification
EC001046
EAN
4021267336202
Pack size
1
Frequently Asked Questions
What is the Wöhner 33620 used for?
The Wöhner 33620 provides fused circuit protection, switching and electrical isolation within industrial 185 mm busbar power distribution systems.
Which fuse sizes are compatible with the Wöhner 33620?
The device is designed for use with suitable NH 000 and NH 00 fuse links manufactured in accordance with IEC or HD 60269-2.
Does the Wöhner 33620 include fuse monitoring?
Yes. This model includes integrated fuse monitoring to support fuse-status indication and faster identification of electrical faults.
What current and voltage ratings does the device provide?
The Wöhner 33620 has a rated current of 160 A and a rated operational voltage of 400 V AC.
Is the Wöhner 33620 compatible with CrossLink protection modules?
Yes. The device features a CrossLink connection and is specifically designed for systems using compatible CrossLink protection modules.
Trusted Industrial Power Distribution Technology
Wöhner QUADRON® fuse switch-disconnectors are widely used by panel builders, electrical engineers and industrial system integrators to provide dependable circuit protection, monitored fuse operation and safe power isolation.
Manufacturer
Wöhner
Series
QUADRON® 185Power Speed
Model
33620
Full manufacturer SKU
33620000A
Type number
QS185-00
Product type
NH in-line fuse switch-disconnector
Fuse sizes
NH 000 and NH 00
Number of poles
3
Rated current
160 A
Rated operational voltage
400 V AC
Rated insulation voltage
400 V AC
Rated impulse withstand voltage
4 kV
Utilisation category
AC-23B
Conditional short-circuit current
up to 120 kA at 400 V AC
Permitted fuse-link power dissipation
12 W
Connection position
Bottom
Connection type
M8 CrossLink connection
Fuse monitoring
Integrated
Compatible busbars
30, 40, 60, 80, 100 and 120 × 10 mm
Mounting system
185Power busbar system
Dimensions (W × H × D)
approx. 50 × 859 × 222 mm
Weight
approx. 4.49 kg
Standards
IEC 60947-1 and IEC 60947-3
ETIM classification
EC001046
EAN
4021267336202
Pack size
1
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
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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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...