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MERSEN FUSE H 1209UP BCKUP T292-65/100 45DB120V100PT
Mersen A1000132 Limitor-PT DIN high-voltage transformer back-up fuse rated at 12 kV AC and 100 A, with a 63 kA breaking capacity and integrated 80 N CPD striker.
£117.31
Why Choose the Mersen A1000132 High-Voltage Transformer Fuse?
The Mersen A1000132, catalogue number 45DB120V100PT, is a high-performance DIN high-voltage back-up fuse designed to protect transformers against damaging short-circuit currents. Part of the Mersen Limitor®-PT series, it combines dependable current limitation with controlled power dissipation for use in modern high-voltage switchgear and controlgear.
Rated at 12 kV AC and 100 A, the A1000132 rapidly interrupts severe fault currents while limiting the peak current and energy passed into the protected system. This helps reduce thermal and mechanical stress on transformer windings, cables, contacts and associated switchgear components.
The fuse features pure silver fuse elements, silver-plated copper terminals and a robust ceramic body. Its integrated 80 N CPD striker provides controlled power dissipation and can actuate compatible switchgear mechanisms when the fuse operates. With a nominal fuse size of 78 × 292 mm, it is designed for secure clip mounting in compatible DIN high-voltage fusegear.
Key Advantages
- Designed specifically for high-voltage transformer protection.
- 12 kV AC rated voltage for medium-voltage distribution systems.
- 100 A rated current.
- High 63 kA breaking capacity.
- Strong current limitation reduces peak short-circuit stress.
- Integrated 80 N CPD striker for controlled power dissipation.
- Low switching voltage supports effective equipment protection.
- Suitable for indoor and outdoor high-voltage applications.
Key Features
- Mersen Limitor®-PT transformer back-up fuse.
- Manufacturer part number: A1000132.
- Catalogue number: 45DB120V100PT.
- Rated voltage: 12 kV AC.
- Rated current: 100 A.
- Maximum breaking capacity: 63 kA.
- Minimum interrupting current: 500 A.
- Fuse size: 78 × 292 mm.
- Striker force: 80 N.
- Clip-mounted cylindrical terminal configuration.
Reliable Protection for High-Voltage Transformers
The Mersen A1000132 is designed to interrupt high short-circuit currents before they can cause extensive damage to a transformer or its associated electrical equipment. Its current-limiting action restricts both the peak fault current and the total energy allowed to pass through the circuit.
As a back-up fuse, the A1000132 is intended to clear high-value fault currents and must be coordinated with suitable switching or protective equipment for lower overcurrent conditions. Correct selection should consider transformer power, system voltage, inrush current, ambient conditions and switchgear requirements.
Typical Applications
- Medium-voltage distribution transformer protection.
- High-voltage switchgear and controlgear.
- Transformer substations.
- Industrial electrical distribution systems.
- Utility and infrastructure installations.
- Indoor and outdoor high-voltage equipment.
- Fuse-switch combinations for transformer circuits.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Voltage | 120 V | |
| Device Type | Fuse link | |
| Fuse Type | High voltage | |
| Current | 100 A | |
| Manufacturer | Mersen | |
| Series | Limitor®-PT | |
| Manufacturer part number | A1000132 | |
| Catalogue number | 45DB120V100PT | |
| Product type | DIN high-voltage transformer back-up fuse | |
| Rated voltage | 12 kV AC IEC | |
| Rated current | 100 A | |
| Maximum breaking capacity | 63 kA | |
| Minimum interrupting current | 500 A | |
| Clearing I²t at rated voltage | 200 kA²s | |
| Power dissipation at rated current | Approximately 156 W | |
| Fuse diameter | Approximately 78 mm | |
| Nominal fuse length | Approximately 292 mm | |
| Mounting type | Clip mounting | |
| Terminal type | Cylindrical | |
| Terminal material | Silver-plated copper | |
| Fuse element material | Pure silver | |
| Body material | Ceramic | |
| Indication system | CPD striker | |
| Striker force | 80 N | |
| Striker travel | Approximately 30 mm | |
| Current type | AC | |
| Approximate weight | 2.2 kg | |
| EAN | 3605340453058 | |
| Compliance | RoHS compliant | |
| Applicable standard | IEC 60282-1 | |
| HS Code | 85351000 |
Frequently Asked Questions
What is the Mersen A1000132 used for?
The A1000132 is a high-voltage back-up fuse designed to protect transformers and associated switchgear against damaging short-circuit currents.
What is the voltage rating of the Mersen A1000132?
The fuse has an IEC rated voltage of 12 kV AC.
What is the rated current of this fuse?
The Mersen A1000132 has a rated current of 100 A.
What is the breaking capacity of the A1000132?
The fuse has a maximum AC breaking capacity of 63 kA and a minimum interrupting current of 500 A.
What does the CPD striker do?
The integrated 80 N CPD striker provides controlled power dissipation and can operate a compatible switchgear tripping or indication mechanism when the fuse operates.
Is the Mersen A1000132 a full-range fuse?
No. It is a back-up fuse designed primarily to interrupt high short-circuit currents. It must be coordinated with suitable protective equipment for complete transformer protection.
Trusted High-Voltage Protection from Mersen
Mersen Limitor®-PT fuse-links are used by transformer manufacturers, utilities, switchgear builders and industrial engineers to provide reliable short-circuit protection in demanding medium-voltage power systems.
