The nVent HOFFMAN LI528 is a reliable slotted lock insert designed to provide a flexible locking solution for electrical enclosures. As part of the nVent HOFFMAN LI lock insert range, it allows enclosure users to replace standard locking inserts with alternative key options to help control access to industrial cabinets and panels.
Manufactured from durable Zamak material, the LI528 lock insert provides dependable mechanical performance and easy installation in compatible enclosure locking systems. It is designed as a replacement for the standard double-bit 3 mm insert in standard lock covers, helping improve enclosure security and access management.
Featuring a slotted 2x4 mm key type with a compact 16 × 16 × 20 mm design, the LI528 is suitable for use with nVent HOFFMAN free-standing enclosure applications where a specific locking interface is required.
Key Advantages
Flexible lock insert solution for nVent HOFFMAN enclosures.
Slotted 2x4 mm key type provides alternative access control options.
Manufactured from durable Zamak material for reliable mechanical strength.
Designed to replace standard double-bit 3 mm lock inserts.
Helps limit unauthorised access to electrical enclosure systems.
Compact design enables straightforward installation into compatible lock covers.
Key Features
nVent HOFFMAN LI lock insert series.
Model: LI528.
Slotted 2x4 mm key interface.
Zamak construction for durability.
Suitable for free-standing enclosure applications.
Replaces standard double-bit 3 mm insert in lock covers.
Mill finish design.
Single-piece packaging quantity.
Reliable Enclosure Access Security
Lock inserts such as the nVent HOFFMAN LI528 provide a simple and effective method for adapting enclosure locking systems to different access requirements. By replacing the standard lock insert, users can select a suitable key style to match operational and security needs.
The LI528 is engineered for industrial enclosure applications where controlled access, reliable operation and compatibility with nVent HOFFMAN locking systems are required.
Typical Applications
Industrial electrical enclosures.
Free-standing control cabinets.
Automation and machine control panels.
Electrical distribution cabinets.
Industrial equipment access management.
Control system enclosure upgrades.
Technical Specifications
Country of Manufacture
Sweden
Manufacturer
nVent HOFFMAN
Series
LI Lock Inserts
Model
LI528
Product type
Lock insert
Key type
Slotted 2x4 mm
Material
Zamak
Finish
Mill
Height
16 mm
Width
16 mm
Depth
20 mm
Product family
Free-standing enclosures
Package quantity
1 piece
Frequently Asked Questions
What is the nVent HOFFMAN LI528 used for?
The LI528 is a lock insert used to replace standard enclosure lock inserts and provide an alternative slotted 2x4 mm access option.
What material is the LI528 lock insert made from?
The LI528 is manufactured from Zamak for durable mechanical performance.
What key type does the LI528 use?
The LI528 uses a slotted 2x4 mm key type.
What are the dimensions of the LI528?
The LI528 has dimensions of approximately 16 mm height, 16 mm width and 20 mm depth.
Where is the LI528 typically installed?
The LI528 is typically installed in compatible nVent HOFFMAN enclosure locking systems for industrial cabinet access control.
Trusted by Industrial Enclosure Professionals
nVent HOFFMAN lock inserts are widely used by electrical engineers and enclosure manufacturers to provide dependable access control solutions for industrial control cabinets and electrical systems.
Country of Manufacture
Sweden
Manufacturer
nVent HOFFMAN
Series
LI Lock Inserts
Model
LI528
Product type
Lock insert
Key type
Slotted 2x4 mm
Material
Zamak
Finish
Mill
Height
16 mm
Width
16 mm
Depth
20 mm
Product family
Free-standing enclosures
Package quantity
1 piece
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...