Mersen H097297 PS III three-pole salt spray-resistant non-load fuse disconnector with integrated +MC PS microswitch for compatible 20 × 127 mm semiconductor fuse-links.
SKU:H097297MPN:H097297
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Why Choose the Mersen H097297 PS III Fuse Disconnector?
The Mersen H097297, also identified as PS III 20.127 PRE BS +MC PS, is a heavy-duty three-pole non-load fuse disconnector designed for the secure installation and isolation of cylindrical semiconductor fuse-links. Part of the Mersen PS 20 × 127 mm modular fusegear range, it combines corrosion-resistant construction with integrated microswitch functionality for demanding industrial, renewable energy and transportation applications.
Designed for use with compatible 20 × 127 mm ferrule semiconductor fuse-links, the H097297 features a salt spray-resistant (BS) construction, making it ideal for marine, offshore, railway and outdoor electrical installations. The integrated +MC PS microswitch provides remote indication when a compatible striker-equipped fuse operates, allowing maintenance teams to identify faults quickly and minimise downtime.
Suitable for systems operating up to 1500 V AC/DC and compatible with fuse ratings up to 125 A, the H097297 delivers secure fuse mounting, dependable electrical performance and safe circuit isolation for converters, inverters, battery storage systems and other critical power electronic equipment.
Key Advantages
Heavy-duty three-pole fuse disconnector for industrial applications.
Compatible with 20 × 127 mm cylindrical semiconductor fuse-links.
125 A maximum current rating.
Suitable for electrical systems operating up to 1500 V AC/DC.
Salt spray-resistant construction for harsh environments.
Integrated +MC PS microswitch for remote fuse-status indication.
Key Features
Mersen PS modular fusegear series.
Product designation: PS III 20.127 PRE BS +MC PS.
Three-pole configuration.
Accepts 20 × 127 mm ferrule semiconductor fuse-links.
Salt spray-resistant (BS) version.
Integrated microswitch for operated-fuse indication.
Pre-isolating non-load disconnector.
Heavy-duty insulated construction for demanding industrial environments.
Reliable Protection for Harsh Industrial Environments
The Mersen H097297 provides secure mounting and isolation for semiconductor fuse-links protecting converters, rectifiers, drives and renewable energy equipment. Its corrosion-resistant construction makes it particularly suitable for installations exposed to moisture, salt spray and other demanding environmental conditions.
The integrated microswitch enables remote indication when a compatible striker-equipped fuse has operated, allowing maintenance engineers to identify faults quickly and reduce equipment downtime. This makes the H097297 an excellent choice for critical industrial and infrastructure applications.
Typical Applications
Solar photovoltaic systems.
Battery energy storage systems.
Industrial power converters.
Variable speed drives.
Marine and offshore electrical installations.
Railway and transportation power systems.
Technical Specifications
Manufacturer
Mersen
Series
PS 20 × 127 Modular Fusegear
Model
H097297
Product designation
PS III 20.127 PRE BS +MC PS
Product type
Non-load fuse disconnector / fuse holder
Number of poles
3
Rated current
Up to 125 A
Maximum voltage
1500 V AC/DC
Compatible fuse size
20 × 127 mm
Compatible fuse type
Cylindrical ferrule semiconductor fuse-link
Mounting type
Panel mounting
Connection type
Screw terminals
Construction
Salt spray-resistant (BS)
Fuse indication
Integrated +MC PS microswitch
Microswitch rating
3 A AC / 3 A DC
Minimum switching load
10 V, 10 mA
Operating category
Non-load disconnector
Frequently Asked Questions
What is the Mersen H097297 used for?
The H097297 is a three-pole non-load fuse disconnector designed for mounting and isolating compatible 20 × 127 mm semiconductor fuse-links in industrial electrical systems.
What makes the BS version different?
The BS version features a salt spray-resistant construction, making it suitable for marine, offshore, railway and other harsh industrial environments.
What is the purpose of the +MC PS microswitch?
The integrated microswitch provides remote indication when a compatible striker-equipped fuse operates, allowing quicker fault identification and maintenance.
What fuse size is compatible?
The H097297 accepts compatible 20 × 127 mm cylindrical ferrule semiconductor fuse-links.
Can this disconnector be opened under load?
No. The H097297 is a non-load disconnector and should only be operated after the circuit has been safely isolated.
Trusted by Industrial Power Professionals
Mersen PS modular fusegear is trusted worldwide by OEMs, panel builders and maintenance engineers for dependable semiconductor fuse protection, safe isolation and reliable operation in demanding industrial and renewable energy installations.
Manufacturer
Mersen
Series
PS 20 × 127 Modular Fusegear
Model
H097297
Product designation
PS III 20.127 PRE BS +MC PS
Product type
Non-load fuse disconnector / fuse holder
Number of poles
3
Rated current
Up to 125 A
Maximum voltage
1500 V AC/DC
Compatible fuse size
20 × 127 mm
Compatible fuse type
Cylindrical ferrule semiconductor fuse-link
Mounting type
Panel mounting
Connection type
Screw terminals
Construction
Salt spray-resistant (BS)
Fuse indication
Integrated +MC PS microswitch
Microswitch rating
3 A AC / 3 A DC
Minimum switching load
10 V, 10 mA
Operating category
Non-load disconnector
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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.
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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...