Mersen F210317 TBB23A insulated axial incoming power supply busbar for compatible modular fuse holders, suitable for two and three-phase installations with a maximum RMS current of 90 A.
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Why Choose the Mersen F210317 TBB23A Power Supply Accessory?
The Mersen F210317, catalogue reference TBB23A, is an insulated axial incoming power supply busbar designed for use with compatible Mersen modular fuse holders. It provides a simple, safe and efficient method of supplying power to multiple fuse holders from a single connection point, reducing installation time and panel wiring complexity.
Part of Mersen's range of accessories for modular fuse holders, the TBB23A is specifically intended for two and three-phase installations. Its insulated construction improves safety while maintaining reliable electrical distribution within industrial control panels, switchboards and power distribution assemblies.
Designed for a maximum continuous current of 90 A RMS, the TBB23A allows panel builders to create neat, compact and reliable power distribution arrangements while reducing the number of individual conductors required between adjacent fuse holders.
Key Advantages
Provides a single incoming power connection for compatible modular fuse holders.
Designed specifically for two and three-phase installations.
90 A RMS maximum current capability.
Reduces wiring time and simplifies panel assembly.
Insulated construction improves installation safety.
Produces a cleaner and more organised control panel layout.
Suitable for industrial control panels and switchboards.
Key Features
Mersen accessory for modular fuse holders.
Catalogue number: TBB23A.
Axial incoming power supply design.
Suitable for 2 and 3 phase applications.
Maximum RMS current: 90 A.
Insulated busbar construction.
Quick installation with compatible Mersen fuse holders.
Reduces panel wiring requirements.
Industrial-grade construction.
Efficient Power Distribution for Modular Fuse Holders
The Mersen TBB23A enables multiple compatible fuse holders to be supplied from a common incoming connection. This helps reduce installation time, minimises panel wiring and improves the overall appearance of electrical control panels and switchgear assemblies.
Its insulated construction and dedicated design ensure dependable electrical distribution while simplifying assembly for OEMs, panel builders and electrical contractors working on industrial power distribution systems.
Typical Applications
Industrial control panels.
Electrical switchboards.
Motor control centres.
Machine building.
OEM electrical equipment.
Power distribution assemblies.
Industrial automation systems.
Panel building and retrofit projects.
Technical Specifications
Current
23 A
Manufacturer
Mersen
Item number
F210317
Catalogue number
TBB23A
Product type
Fuse holder power supply accessory
Accessory type
Insulated axial incoming power supply busbar
Application
2 and 3 phase installations
Maximum RMS current
90 A
Compatible products
Selected Mersen modular fuse holders
Installation orientation
Axial incoming supply
Package quantity
50
Weight
Approximately 23.3 g
Frequently Asked Questions
What is the Mersen F210317 used for?
The Mersen F210317 is an insulated power supply busbar that distributes incoming power across compatible modular fuse holders.
Which applications is the TBB23A designed for?
It is designed for two and three-phase installations requiring a common axial incoming power connection.
What is the maximum current rating?
The TBB23A has a maximum continuous current rating of 90 A RMS.
Does this accessory replace a fuse holder?
No. The TBB23A is an accessory that supplies power to compatible Mersen modular fuse holders and does not provide fuse protection itself.
Why use a power supply busbar?
Using a dedicated busbar reduces wiring, speeds installation and creates a cleaner, more reliable electrical panel layout.
Trusted by Panel Builders Worldwide
Mersen modular fuse holder accessories are trusted by electrical engineers, switchboard manufacturers and OEM panel builders for reliable power distribution, simplified installation and professional electrical assemblies.
Current
23 A
Manufacturer
Mersen
Item number
F210317
Catalogue number
TBB23A
Product type
Fuse holder power supply accessory
Accessory type
Insulated axial incoming power supply busbar
Application
2 and 3 phase installations
Maximum RMS current
90 A
Compatible products
Selected Mersen modular fuse holders
Installation orientation
Axial incoming supply
Package quantity
50
Weight
Approximately 23.3 g
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
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Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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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...