The Wöhner 33742 is a genuine current transformer rated at 150 A / 5 A, designed specifically for compatible QUADRON® 185Power NH size 1–3 fuse switch-disconnectors. It enables accurate current measurement for energy monitoring, metering and protection applications within industrial low-voltage power distribution systems.
As part of the Wöhner 185Power measuring accessory range, the transformer integrates directly into compatible NH fuse switch-disconnectors without increasing panel footprint. It provides a reliable secondary output for monitoring equipment, power meters and protection relays while maintaining the modular design of the 185Power busbar system.
Designed for professional switchgear manufacturers and panel builders, the Wöhner 33742 offers dependable measurement performance in industrial environments and is supplied as a single unit for straightforward installation.
Key Advantages
Genuine Wöhner current transformer.
Rated 150 A / 5 A.
Designed for QUADRON® 185Power NH size 1–3 devices.
Supports energy monitoring and electrical metering.
Simple installation with compatible Wöhner equipment.
Reliable current measurement for monitoring applications.
Key Features
Current transformer.
Primary current: 150 A.
Secondary current: 5 A.
Designed for NH size 1–3 QUADRON® 185Power devices.
Suitable for metering and monitoring.
Compact integrated design.
Pack quantity: 1.
Genuine Wöhner measuring accessory.
Accurate Current Measurement for Modern Switchgear
The Wöhner 33742 enables accurate current monitoring without requiring additional panel space. Installed directly within compatible QUADRON® 185Power switch-disconnectors, it provides a standard 5 A secondary output suitable for power monitoring equipment, energy management systems and protection relays.
Its integrated design helps simplify panel construction while supporting the modular philosophy of the Wöhner 185Power system, making it ideal for commercial and industrial low-voltage distribution equipment.
Typical Applications
Industrial switchboards.
Energy monitoring systems.
Power metering.
Motor control centres.
Building energy management.
OEM machinery panels.
Low-voltage distribution equipment.
185Power busbar systems.
Technical Specifications
Current
150 A
Manufacturer
Wöhner
Part Number
33742
Product type
Current transformer
System
185Power
Primary current
150 A
Secondary current
5 A
Compatible devices
QUADRON® 185Power NH size 1–3
Application
Current measurement and monitoring
Pack quantity
1
Frequently Asked Questions
What is the Wöhner 33742 used for?
The Wöhner 33742 is a current transformer used for measuring current in compatible QUADRON® 185Power NH size 1–3 switch-disconnectors.
What is the transformer ratio?
The Wöhner 33742 has a primary rating of 150 A and a secondary output of 5 A.
Which Wöhner system is it compatible with?
It is designed for the Wöhner 185Power system and compatible NH size 1–3 QUADRON® devices.
What is the transformer used for?
It is intended for energy monitoring, electrical metering and protection applications requiring a 5 A current transformer output.
How is the Wöhner 33742 supplied?
The product is supplied as a single current transformer.
Trusted Measurement Technology for Industrial Power Distribution
Wöhner current transformers are trusted by switchgear manufacturers and panel builders for delivering reliable current measurement, seamless system integration and dependable long-term performance in industrial electrical installations.
Current
150 A
Manufacturer
Wöhner
Part Number
33742
Product type
Current transformer
System
185Power
Primary current
150 A
Secondary current
5 A
Compatible devices
QUADRON® 185Power NH size 1–3
Application
Current measurement and monitoring
Pack quantity
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
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Support for engineering, maintenance, and operations
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Customers supported
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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...