The Mersen H1046346 is a genuine side contact accessory designed for use with MULTIVERT® 250 A, 400 A and 630 A NH fuse switch disconnectors. Also known by the alternative designation MZKS03, this accessory provides a reliable auxiliary side contact for signalling and control functions within low-voltage power distribution systems.
Manufactured as an original Mersen accessory, the H1046346 integrates directly with compatible MULTIVERT® switch disconnectors without modification. It is commonly used to provide remote indication of switch position, allowing connection to monitoring systems, PLCs, alarms or building management systems.
Its compact design, dependable operation and simple installation make the H1046346 an ideal accessory for industrial switchboards, motor control centres and commercial electrical distribution panels requiring auxiliary signalling.
Key Advantages
Genuine Mersen auxiliary side contact.
Compatible with MULTIVERT® 250 A, 400 A and 630 A fuse switch disconnectors.
Provides reliable switch position signalling.
Supports remote monitoring and control systems.
Simple direct-fit installation.
Compact, durable construction.
Suitable for OEM and industrial switchboards.
Designed for long service life.
Key Features
Manufacturer Part Number: H1046346.
Alternative designation: MZKS03.
Product type: Side contact.
Suitable for MULTIVERT® 250 A, 400 A and 630 A.
Provides auxiliary switching indication.
Direct mounting to compatible Mersen equipment.
Compact accessory design.
Supplied as an individual component.
Reliable Auxiliary Signalling for Industrial Installations
The Mersen H1046346 provides dependable auxiliary signalling from compatible MULTIVERT® fuse switch disconnectors, enabling switch position feedback for supervisory control, automation systems and remote monitoring applications. As an original Mersen accessory, it offers straightforward installation and dependable operation throughout the life of the installation.
Its compact construction makes it suitable for new installations and retrofit projects where reliable indication contacts are required without increasing switchboard complexity.
Typical Applications
Industrial switchboards.
Motor control centres.
Main and sub-distribution panels.
Power monitoring systems.
Building management systems.
PLC and automation installations.
OEM electrical equipment.
Commercial power distribution systems.
Technical Specifications
Current
600 A
Manufacturer
Mersen
Model
H1046346
Alternative SKU
MZKS03
EAN
3605340569247
Product type
Auxiliary side contact
Compatible equipment
MULTIVERT® 250 A, 400 A and 630 A fuse switch disconnectors
Function
Switch position signalling
Installation
Direct fit accessory
Application
Monitoring and control circuits
Package quantity
1 piece
Frequently Asked Questions
What is the Mersen H1046346?
The H1046346 is a genuine Mersen auxiliary side contact designed for compatible MULTIVERT® 250 A, 400 A and 630 A fuse switch disconnectors.
What does the side contact do?
It provides auxiliary switch position signalling for monitoring, automation and control circuits.
Which MULTIVERT® units is it compatible with?
The accessory is designed for compatible MULTIVERT® 250 A, 400 A and 630 A fuse switch disconnectors.
Is H1046346 the same as MZKS03?
Yes. MZKS03 is the alternative product designation for Mersen part number H1046346.
Where is the H1046346 typically installed?
It is commonly installed in industrial switchboards, motor control centres and electrical distribution systems requiring remote switch status indication.
Trusted for Industrial Control and Monitoring
Mersen auxiliary accessories are trusted by panel builders, OEM manufacturers and electrical engineers for dependable signalling, straightforward installation and reliable operation in industrial low-voltage power distribution systems.
Current
600 A
Manufacturer
Mersen
Model
H1046346
Alternative SKU
MZKS03
EAN
3605340569247
Product type
Auxiliary side contact
Compatible equipment
MULTIVERT® 250 A, 400 A and 630 A fuse switch disconnectors
Function
Switch position signalling
Installation
Direct fit accessory
Application
Monitoring and control circuits
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
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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...