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MERSEN FUSE BASE MOD. CMS.14 2P R331031
Mersen CMS142 Modulostar two-pole DIN rail fuse holder for 14 x 51 mm cylindrical fuse links, rated 50 A and 690 V AC/DC with IP20 finger-safe protection.
£17.74
Why Choose the Mersen CMS142 Modulostar® Fuse Holder?
The Mersen CMS142, manufacturer reference R331031, is a dependable two-pole modular fuse holder designed for 14 × 51 mm cylindrical fuse links. As part of the trusted Mersen Modulostar® CMS14 series, it provides reliable overcurrent protection and safe circuit isolation for industrial control panels, switchboards and electrical distribution systems.
Designed with operator safety in mind, the CMS142 features a finger-safe IP20 enclosure, including during fuse replacement. Its durable thermoplastic construction, robust terminal design and DIN rail mounting make it ideal for OEM machinery, automation equipment and industrial electrical installations.
Rated at 50 A and suitable for systems up to 690 V AC or 690 V DC, the CMS142 delivers dependable protection for motors, transformers, drives and general low-voltage power distribution. Its compact two-pole configuration allows efficient use of panel space while maintaining excellent accessibility for installation and maintenance.
Key Advantages
- Reliable two-pole modular fuse holder.
- Designed for 14 × 51 mm cylindrical fuse links.
- 50 A thermal current rating.
- Suitable for 690 V AC and 690 V DC IEC systems.
- Finger-safe IP20 protection, including during fuse replacement.
- 100 kA short-circuit current rating when used with suitable fuse links.
- DIN rail mounting for quick installation.
- Compact modular design for industrial control panels.
Key Features
- Mersen Modulostar® CMS14 series.
- Two-pole configuration.
- Compatible with 14 × 51 mm cylindrical fuse links.
- 50 A rated current.
- 690 V AC / 690 V DC IEC ratings.
- Finger-safe IP20 enclosure.
- High-strength thermoplastic construction.
- DIN rail mounting to EN 60715.
- Standard version without visual fuse indication.
- Suitable for industrial AC and DC applications.
Reliable Two-Pole Protection for Industrial Electrical Systems
The Mersen CMS142 securely houses two 14 × 51 mm cylindrical fuse links, providing dependable protection against overloads and short circuits when used with correctly selected fuse links. Its compact modular design enables efficient installation in industrial switchboards, machinery and automation equipment.
Its finger-safe construction enhances operator safety during maintenance, while the DIN rail mounting system allows rapid installation and replacement. The CMS142 is a dependable solution for electrical engineers and panel builders requiring reliable low-voltage circuit protection.
Typical Applications
- Industrial control panels.
- Motor protection circuits.
- Transformer protection.
- Power distribution systems.
- Variable speed drive protection.
- OEM machinery.
- Automation equipment.
- Electrical switchboards.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | None | |
|---|---|---|
| Poles | 2-pole | |
| Device Type | Fuse base / holder | |
| Fuse Type | Cylindrical | |
| Fuse Size | 14x51 mm | |
| Current | 50 A | |
| Voltage | 690 V | |
| Manufacturer | Mersen | |
| Series | Modulostar® CMS14 | |
| Model | CMS142 | |
| Manufacturer part number | R331031 | |
| Product type | Modular cylindrical fuse holder | |
| Fuse size | 14 × 51 mm | |
| Number of poles | 2 | |
| Rated current | 50 A | |
| Rated voltage AC | 690 V IEC | |
| Rated voltage DC | 690 V IEC | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 8 kV | |
| Short-circuit current rating | 100 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail mounting | |
| Indicator | No visual blown-fuse indicator | |
| Operating temperature | -25°C to +60°C | |
| EAN | 8430399000138 | |
| HS Code | 85361050 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen CMS142 used for?
The CMS142 is a two-pole modular fuse holder designed to protect industrial electrical circuits using 14 × 51 mm cylindrical fuse links.
What fuse size does the CMS142 accept?
It is designed specifically for 14 × 51 mm cylindrical fuse links.
What are the voltage and current ratings?
The CMS142 is rated at 50 A and is suitable for systems operating up to 690 V AC or 690 V DC.
Does the CMS142 include a blown-fuse indicator?
No. The standard CMS142 model does not include a visual blown-fuse indicator. Indicator and microswitch variants are available within the CMS14 range.
How is the Mersen CMS142 installed?
The fuse holder mounts directly onto a standard DIN rail, making installation quick and straightforward in industrial electrical panels and switchboards.
Trusted by Electrical Professionals Worldwide
Mersen Modulostar® fuse holders are trusted by panel builders, OEM manufacturers and industrial engineers for dependable circuit protection, finger-safe operation and long-term reliability in demanding electrical installations.
