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MERSEN FUSE SI 24/537 L209425
Mersen L209425 SI240V537 single-pole indoor fuse base for 537 mm DIN high voltage fuse-links, rated at 24 kV AC and suitable for fuse ratings up to 125 A.
£242.31
Why Choose the Mersen L209425 High Voltage Fuse Base?
The Mersen L209425 is a robust single-pole indoor fuse base designed for mounting DIN high voltage fuse-links within medium voltage switchgear and electrical distribution equipment. Also identified by the catalogue reference SI240V537, it provides a secure mechanical and electrical connection for compatible 537 mm fuse-links.
Engineered for demanding medium voltage installations, the L209425 supports fuse-links with a maximum rating of 125 A and is suitable for systems operating at up to 24 kV AC. Its durable construction helps maintain dependable contact pressure and mechanical stability throughout normal operation and fault interruption.
The fuse base can be used with fuse-links equipped with a striker or trip indicator. A compatible indicating device can actuate an opening mechanism or electrical indicator when the installed fuse operates, helping simplify fault identification and switchgear integration.
Key Advantages
- Purpose-built fuse base for DIN high voltage fuse-links.
- 24 kV AC rated voltage for medium voltage installations.
- Accepts compatible 537 mm fuse-links.
- Single-pole design for modular switchgear configurations.
- Supports fuse ratings up to 125 A.
- Suitable for fuse-links fitted with trip indicators or striker mechanisms.
- Robust construction for dependable indoor switchgear operation.
- Can support optional microswitch-based indication arrangements.
Key Features
- Mersen fuse base for DIN high voltage fuse-links.
- Catalogue number: SI240V537.
- 24 kV AC rated voltage.
- 537 mm compatible fuse-link size.
- Maximum fuse rating: 125 A.
- One-pole configuration.
- Designed for indoor medium voltage equipment.
- Compatible with fuse striker indication systems.
- Suitable for integration into switchgear and transformer protection assemblies.
Secure Mounting for High Voltage Fuse-Links
A high voltage fuse base provides the mechanical support and conductive contacts required to install a compatible fuse-link safely within switchgear. The Mersen L209425 is designed to hold a 537 mm DIN fuse-link securely while maintaining reliable electrical contact under normal load and fault conditions.
When used with a fuse-link equipped with a trip indicator, the assembly can support electrical or mechanical fault indication. This helps operators identify an operated fuse and enables integration with compatible switch-disconnector or signalling systems.
Typical Applications
- Medium voltage switchgear assemblies.
- Distribution transformer protection systems.
- Indoor electrical substations.
- Industrial power distribution equipment.
- Utility switchboards and control panels.
- Renewable energy distribution systems.
- OEM medium voltage equipment.
Technical Specifications
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| Phase | Single Phase | |
|---|---|---|
| Poles | 1-pole | |
| Device Type | Fuse base / holder | |
| Fuse Type | High voltage | |
| Voltage | 24000 V | |
| Manufacturer | Mersen | |
| Model | L209425 | |
| Catalogue number | SI240V537 | |
| Product type | DIN high voltage fuse base | |
| Product group | Fuse bases | |
| Rated voltage | 24 kV AC | |
| Voltage type | AC | |
| Number of poles | 1 | |
| Compatible fuse-link length | 537 mm | |
| Maximum fuse rating | 125 A | |
| Installation environment | Indoor | |
| Approximate width | 70 mm | |
| Approximate length | 670 mm | |
| Approximate height | 365 mm | |
| Approximate product weight | 7 kg | |
| EAN / UPC | 3605340219081 | |
| Sell pack quantity | 1 |
Frequently Asked Questions
What is the Mersen L209425 used for?
The Mersen L209425 is a single-pole indoor fuse base used to mount a compatible DIN high voltage fuse-link within medium voltage switchgear and transformer protection equipment.
Is the Mersen L209425 a fuse-link?
No. The L209425 is a fuse base. A compatible high voltage fuse-link must be selected and installed separately.
What voltage is the L209425 rated for?
The fuse base is rated for electrical systems operating at up to 24 kV AC.
What size fuse-link fits this fuse base?
The Mersen L209425 is designed for compatible DIN high voltage fuse-links with a nominal length of 537 mm.
What is the maximum supported fuse rating?
The fuse base supports compatible fuse-links with a maximum current rating of 125 A.
Can the fuse base support fault indication?
Yes. When fitted with a suitable fuse-link and associated indicating equipment, the assembly can actuate a signalling device or switchgear opening mechanism after the fuse operates.
Trusted for Medium Voltage Fuse Installation
Mersen high voltage fuse bases are used by switchgear manufacturers, utilities and industrial engineers to provide secure fuse mounting, dependable electrical contact and effective integration within medium voltage protection systems.
