nVent HOFFMAN LHC521 Ronis half profile cylinder lock with 21323C cylinder reference designed for secure access control on industrial electrical enclosures.
SKU:LHC521MPN:LHC521
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The nVent HOFFMAN LHC521 Ronis Half Profile Cylinder Lock is a reliable enclosure locking accessory designed to provide secure access control for electrical cabinets, control panels and industrial enclosures. Featuring a Ronis 21323C half profile cylinder, this locking solution is designed for applications where controlled enclosure access and dependable mechanical security are required.
As part of the nVent HOFFMAN enclosure accessory range, the LHC521 provides a practical replacement or upgrade solution for compatible enclosure locking systems. Its compact half profile cylinder design allows integration into cabinet doors while maintaining a professional appearance and reliable operation.
With a height of 37 mm and a depth of 41 mm, the LHC521 is suitable for industrial enclosure applications requiring a secure and space-efficient locking mechanism. The Ronis cylinder design provides controlled access for authorised personnel while helping protect sensitive electrical equipment.
Key Advantages
Secure half profile cylinder locking solution for industrial enclosures.
Compatible with Ronis 21323C cylinder key systems.
Compact design for integration into enclosure doors and panels.
Helps protect electrical components from unauthorised access.
Designed for reliable operation in industrial environments.
Suitable for nVent HOFFMAN enclosure locking applications.
Key Features
nVent HOFFMAN enclosure locking accessory.
Model: LHC521.
Ronis half profile cylinder: 21323C.
Height: 37 mm.
Depth: 41 mm.
Designed for secure cabinet access control.
Compact cylinder format for enclosure applications.
Suitable for industrial control cabinets and electrical panels.
Reliable Locking for Industrial Enclosures
Industrial enclosure locking systems provide essential protection by restricting access to electrical equipment, automation components and control systems. A dependable cylinder lock helps maintain safety, security and operational integrity within industrial installations.
The nVent HOFFMAN LHC521 Ronis half profile cylinder is designed for professional enclosure applications where secure access and reliable mechanical performance are required. Its compact format makes it suitable for a wide range of cabinet and panel installations.
Typical Applications
Electrical control cabinets.
Industrial automation enclosures.
Machine building control panels.
Power distribution cabinets.
OEM electrical enclosure systems.
Industrial equipment access protection.
Technical Specifications
Country of Manufacture
Sweden
Manufacturer
nVent HOFFMAN
Series
Enclosure accessories
Model
LHC521
Product type
Half profile cylinder lock
Cylinder type
Ronis half profile cylinder
Cylinder reference
21323C
Height
37 mm
Depth
41 mm
Application
Electrical enclosure and cabinet locking
Frequently Asked Questions
What is the nVent HOFFMAN LHC521 used for?
The LHC521 is used as a half profile cylinder locking accessory for securing compatible electrical enclosures and industrial cabinets.
What type of cylinder does the LHC521 use?
The LHC521 uses a Ronis half profile cylinder 21323C.
What are the dimensions of the LHC521?
The LHC521 has a height of 37 mm and a depth of 41 mm.
Where is this cylinder lock typically installed?
The cylinder lock is typically installed on electrical cabinets, control panels and industrial enclosure doors requiring secure access control.
Why use a cylinder lock on an electrical enclosure?
A cylinder lock helps prevent unauthorised access to electrical components while allowing controlled access for authorised personnel.
Trusted by Industrial Enclosure Professionals
nVent HOFFMAN enclosure accessories are widely used by electrical engineers, panel builders and OEM manufacturers to create secure, reliable and professionally installed industrial control systems.
Country of Manufacture
Sweden
Manufacturer
nVent HOFFMAN
Series
Enclosure accessories
Model
LHC521
Product type
Half profile cylinder lock
Cylinder type
Ronis half profile cylinder
Cylinder reference
21323C
Height
37 mm
Depth
41 mm
Application
Electrical enclosure and cabinet locking
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
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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...