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MERSEN FUSE PSI 20.127 BS + MCSBS PS201BS2MC
Mersen N221065 single-pole fuse holder for compatible 20 × 127 mm semiconductor fuse-links, rated up to 1500 V and 80 A, with open-fuse indicating microswitches and salt-spray-resistant construction.
£118.16
Why Choose the Mersen N221065 Single-Pole Fuse Holder with Microswitches?
The Mersen N221065 is a robust single-pole fuse holder assembly designed for compatible 20 × 127 mm cylindrical semiconductor fuse-links. Also identified by the catalogue reference PS201BS2MC, it provides secure fuse mounting and reliable blown-fuse signalling for demanding industrial electrical protection systems.
Part of the Mersen PS 20 × 127 fusegear range, the N221065 accommodates high-speed ferrule fuse-links used to protect sensitive power semiconductor equipment. Its single-pole configuration is suitable for individual circuit protection within converters, drives, rectifiers, traction equipment and high-voltage DC installations.
The fuse holder incorporates open-fuse indicating microswitches for remote status monitoring when a compatible striker-operated fuse-link is installed. Its salt-spray-resistant construction supports dependable service in corrosive atmospheres, transport applications and other challenging industrial environments.
Key Advantages
- Single-pole fuse holder for individual circuit protection.
- Designed for compatible 20 × 127 mm cylindrical fuse-links.
- Suitable for systems rated up to 1500 V.
- Supports fuse currents up to 80 A.
- Integrated open-fuse indicating microswitches.
- Enables remote monitoring of compatible striker fuse-links.
- Salt-spray-resistant construction for demanding environments.
- Strong thermal and mechanical withstand performance.
Key Features
- Mersen PS 20 × 127 fuse holder range.
- PS201BS2MC catalogue reference.
- PS I 20.127 BS + MCSBS product designation.
- Single-pole fuse holder assembly.
- Compatible with 20 × 127 mm ferrule fuse-links.
- Maximum rated voltage of 1500 V.
- Maximum fuse current rating of 80 A.
- Open-fuse indicating microswitches.
- Requires a compatible striker fuse for indication.
- Salt-spray-resistant housing.
- Designed for panel mounting.
- Suitable for 50 / 60 Hz electrical systems.
Reliable Fuse Monitoring for Industrial Power Systems
Semiconductor fuse holders provide secure electrical and mechanical connections for high-speed fuse-links protecting sensitive power electronic devices. A correctly selected fuse-link can rapidly limit fault energy before expensive semiconductor components are exposed to damaging thermal and electrical stresses.
The integrated microswitches allow compatible striker-operated fuse-links to be monitored remotely. This helps maintenance teams identify an operated fuse quickly, reduce fault-finding time and restore industrial equipment to service more efficiently.
Typical Applications
- Industrial power converters.
- Variable speed drive systems.
- Rectifiers and inverters.
- Semiconductor protection assemblies.
- Rail and traction equipment.
- Renewable energy installations.
- Battery energy storage systems.
- High-voltage industrial control cabinets.
Technical Specifications
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| Poles | 1-pole | |
|---|---|---|
| Device Type | Fuse base / holder | |
| Fuse Type | Semiconductor | |
| Fuse Size | 20x127 mm | |
| Voltage | 1500 V | |
| Manufacturer | Mersen | |
| Model | N221065 | |
| Catalogue reference | PS201BS2MC | |
| Product designation | PS I 20.127 BS + MCSBS | |
| Product type | Single-pole semiconductor fuse holder | |
| Number of poles | 1 | |
| Compatible fuse size | 20 × 127 mm | |
| Compatible fuse type | Cylindrical ferrule semiconductor fuse-link | |
| Maximum rated voltage | 1500 V | |
| Maximum fuse current | 80 A | |
| Frequency | 50 / 60 Hz | |
| Fuse indication | Open-fuse indicating microswitches | |
| Striker fuse required for indication | Yes | |
| Environmental design | Salt-spray-resistant | |
| Mounting type | Panel mounting | |
| GTIN / EAN | 3605340249996 |
Frequently Asked Questions
What is the Mersen N221065 used for?
The N221065 is used to hold a compatible 20 × 127 mm semiconductor fuse-link and provide remote open-fuse indication in industrial electrical protection systems.
How many poles does the N221065 have?
The Mersen N221065 is a single-pole fuse holder assembly.
What fuse size is compatible with this holder?
It is designed for compatible 20 × 127 mm cylindrical ferrule fuse-links.
Does the N221065 include blown-fuse indication?
Yes. It incorporates open-fuse indicating microswitches that operate when a compatible striker-equipped fuse-link is installed.
Is the N221065 suitable for corrosive environments?
Yes. Its salt-spray-resistant construction makes it suitable for demanding industrial, transport and corrosive environments.
Trusted by Industrial Power Engineers Worldwide
Mersen semiconductor fuse holders are widely used in industrial power conversion, transportation and renewable energy systems where secure fuse installation, dependable status indication and reliable circuit protection are essential.
