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MERSEN FUSE MS 3V 1-9 BS MS3V1-9BS
Why Choose the MERSEN FUSE MS 3V 1-9 BS MS3V1-9BS?
£23.65
Why Choose the Mersen T310011 Fuse Microswitch Accessory?
The Mersen T310011 is a genuine Protistor® fuse microswitch accessory designed for use with Mersen square body semiconductor fuse-links. Identified as the MS3V1-9BS, this accessory provides double-pole, low-level NO/NC indication and is intended for fuse sizes 30 to 33. It enables remote signalling of fuse operation, allowing maintenance personnel and control systems to detect when a protected fuse has operated.
The T310011 mounts alongside compatible Protistor® fuse-links fitted with a striker and converts the mechanical movement of the striker into electrical switching contacts. This makes it suitable for industrial automation, drive systems, power conversion equipment and critical electrical installations requiring remote monitoring of fuse status.
Designed for demanding industrial environments, the Mersen T310011 offers dependable operation and simplifies maintenance by allowing fault indication to be integrated into PLCs, alarms, SCADA systems and other monitoring equipment.
Key Advantages
- Genuine Mersen Protistor® accessory.
- Provides remote indication of fuse operation.
- Double-pole low-level NO/NC contact arrangement.
- Suitable for fuse sizes 30, 31, 32 and 33.
- Designed for use with striker-equipped semiconductor fuse-links.
- Supports preventative maintenance and fault monitoring.
Key Features
- Manufacturer: Mersen
- Part number: T310011
- Product designation: MS3V1-9BS
- Microswitch accessory for Protistor® fuse-links.
- Double-pole low-level NO/NC contacts.
- Designed for fuse sizes 30–33.
- Compatible with striker-operated fuse-links.
- Suitable for industrial automation systems.
- Enables remote fuse status indication.
- Industrial-grade construction.
Reliable Remote Fuse Monitoring
When a compatible Protistor® semiconductor fuse operates, its striker mechanically actuates the T310011 microswitch. The change of state can then be monitored by PLCs, alarm circuits, building management systems or industrial control equipment, enabling maintenance personnel to identify fuse operation quickly and minimise equipment downtime.
This accessory is particularly useful in installations where fuse condition cannot easily be inspected visually or where remote fault indication forms part of the equipment's safety or maintenance strategy.
Typical Applications
- Variable speed drives.
- Industrial inverters.
- Power converters.
- UPS systems.
- Motor control centres.
- Industrial automation panels.
- Renewable energy converters.
- Remote alarm and monitoring systems.
Technical Specifications
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| Device Type | Accessory | |
|---|---|---|
| Current | 3 A | |
| Voltage | 1000 V | |
| Manufacturer | Mersen | |
| Model | T310011 | |
| Catalogue designation | MS3V1-9BS | |
| Product type | Fuse microswitch accessory | |
| Compatible fuse sizes | 30, 31, 32 and 33 | |
| Contact arrangement | Double pole NO/NC (low-level) | |
| Rated voltage | 1000 V AC | |
| Rated current | 3 A | |
| Minimum switching level | 10 V / 10 mA | |
| Indication method | Mechanical striker operation | |
| Weight | Approximately 44 g | |
| Application | Remote fuse indication and monitoring |
Frequently Asked Questions
What is the Mersen T310011?
The T310011 is a Protistor® fuse microswitch accessory (MS3V1-9BS) used to provide remote indication when a compatible semiconductor fuse operates.
Which fuse sizes is the T310011 compatible with?
It is designed for use with Mersen Protistor® square body fuse sizes 30, 31, 32 and 33 that incorporate a striker mechanism.
What type of contacts does the T310011 provide?
The accessory provides double-pole low-level normally open and normally closed (NO/NC) contacts suitable for signalling and monitoring applications.
Does the T310011 protect electrical circuits?
No. The T310011 is not a fuse. It is an accessory that provides electrical indication after a compatible fuse has operated.
Where is the T310011 commonly installed?
It is commonly fitted to semiconductor fuse installations in industrial drives, converters, UPS systems, power electronics and automation equipment requiring remote fuse status indication.
Trusted Industrial Monitoring Accessory
Mersen Protistor® fuse accessories are trusted worldwide by OEMs, panel builders and maintenance engineers to provide dependable remote indication and monitoring of semiconductor fuse operation in critical industrial applications.
