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MERSEN FUSE BASE CMS 14 1P P/M.S/FUS.ACC CMS141AC
Mersen CMS141AC Modulostar single-pole fuse holder for 14 x 51 mm cylindrical fuse-links, rated 50 A and 690 V AC/DC with IP20 finger-safe protection.
Why Choose the Mersen CMS141AC Modulostar Fuse Holder?
The Mersen CMS141AC is a high-quality single-pole modular fuse holder designed for use with 14 × 51 mm cylindrical fuse-links. As part of the trusted Mersen Modulostar CMS14 series, it provides reliable overcurrent protection for industrial power distribution, motor control and automation systems while offering safe operation and straightforward installation.
Designed for IEC applications, the CMS141AC is rated for 690 V AC and 690 V DC with a conventional thermal current of 50 A. Its modular construction enables simple expansion into multi-pole assemblies, while the finger-safe IP20 design enhances operator safety during installation and fuse replacement.
The fuse holder is DIN rail mounted and manufactured from durable flame-retardant insulating materials, making it suitable for demanding industrial environments where dependable circuit protection and ease of maintenance are essential.
Key Advantages
- Single-pole fuse holder for 14 × 51 mm cylindrical fuse-links.
- 50 A current rating for industrial electrical protection.
- 690 V AC / 690 V DC IEC rated.
- IP20 finger-safe construction for safer operation.
- Compact modular design for panel building.
- DIN rail mounting enables fast installation.
- Suitable for machinery, distribution panels and automation equipment.
Key Features
- Mersen Modulostar CMS14 series.
- Single-pole configuration.
- Compatible with 14 × 51 mm cylindrical fuse-links.
- 50 A conventional thermal current.
- 690 V AC / 690 V DC IEC rated voltage.
- 100 kA short-circuit current rating.
- 8 kV impulse withstand voltage.
- IP20 finger-safe protection.
- DIN rail mounting according to EN 60715.
- Flame-retardant thermoplastic construction.
Reliable Circuit Protection for Industrial Installations
The Mersen CMS141AC provides a secure mounting point for 14 × 51 mm cylindrical fuse-links, helping protect electrical circuits against overloads and short circuits. When used with the correct fuse-link, it safeguards industrial equipment, control systems and power distribution circuits while allowing straightforward fuse replacement and maintenance.
Its modular construction enables efficient panel layouts and future expansion, making it a practical choice for OEM machine builders, switchboard manufacturers and industrial electricians.
Typical Applications
- Industrial control panels.
- Motor control centres.
- Power distribution systems.
- OEM machinery.
- Automation equipment.
- Transformer protection.
- HVAC systems.
- Industrial switchboards.
Technical Specifications
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| Fuse Indication | None | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | Fuse base / holder | |
| Fuse Type | Cylindrical | |
| Fuse Size | 14x51 mm | |
| Voltage | 690 V | |
| Manufacturer | Mersen | |
| Series | Modulostar CMS14 | |
| Model | CMS141AC | |
| Product type | Modular cylindrical fuse holder | |
| Fuse size | 14 × 51 mm | |
| Number of poles | 1 | |
| Current rating | 50 A | |
| Rated voltage | 690 V AC / 690 V DC | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 8 kV | |
| Short-circuit current rating | 100 kA | |
| Utilisation category | AC-20B / DC-20B | |
| Protection rating | IP20 | |
| Mounting type | 35 mm DIN rail | |
| Operating temperature | -25°C to +60°C | |
| Dimensions (H × W × D) | approximately 107 × 26.5 × 76.5 mm |
Frequently Asked Questions
What is the Mersen CMS141AC used for?
The CMS141AC securely holds a 14 × 51 mm cylindrical fuse-link to protect industrial electrical circuits against overloads and short circuits.
What fuse size does the CMS141AC accept?
The fuse holder is designed for standard 14 × 51 mm cylindrical fuse-links.
What is the maximum current rating?
The Mersen CMS141AC has a conventional thermal current rating of 50 A.
Can the CMS141AC be used on DC systems?
Yes. The fuse holder is suitable for both 690 V AC and 690 V DC IEC applications.
How is the fuse holder installed?
The CMS141AC mounts directly onto a standard 35 mm DIN rail inside a suitable electrical enclosure.
Trusted by Electrical Professionals Worldwide
Mersen Modulostar fuse holders are trusted by panel builders, machine manufacturers and industrial engineers for dependable circuit protection, safe operation and long-term reliability.
