Bentong BTM8-125/3300 125A 3-Pole Molded Case Circuit Breaker for Electrical Protection
The Bentong BTM8-125/3300 is a 3-pole molded case circuit breaker rated at 125A, designed for circuit protection and switching in low-voltage electrical distribution systems. It supports AC380/400/415V and AC660/690V applications and offers high short-circuit breaking capacity, making it suitable for industrial and commercial power distribution applications.
Product Features
The Bentong BTM8-125/3300 is a 3-pole molded case circuit breaker designed for electrical protection and switching in low-voltage power distribution systems. With a 125A rated current, it provides a practical solution for three-phase electrical distribution applications.
The circuit breaker features a durable molded housing and a front-mounted operating handle for convenient manual switching. The incoming and outgoing terminal areas are clearly marked LINE and LOAD, helping users identify the connection positions during installation.
The front panel clearly displays the model, rated current and major electrical parameters. A PUSH TO TRIP function is also provided on the front panel for convenient operation and testing.
Application
The BTM8-125/3300 is suitable for circuit protection and switching in low-voltage electrical distribution systems.
Typical applications include:
- Industrial power distribution
- Commercial electrical systems
- Electrical distribution panels
- Industrial control cabinets
- Power distribution equipment
- Three-phase electrical installations
- Machinery and electrical equipment
Its 125A rated current makes it suitable for electrical circuits requiring medium-current protection.
Specifications
| Specification | Details |
| Model | BTM8-125/3300 |
| Product Type | Molded Case Circuit Breaker (MCCB) |
| Number of Poles | 3 Poles |
| Rated Current In | 125A |
| Rated Operational Voltage Ue | AC380/400/415V, AC660/690V |
| Rated Insulation Voltage Ui | 800V |
| Rated Impulse Withstand Voltage Uimp | 8kV |
| Rated Short-Circuit Breaking Capacity Icu | 65kA at AC380/400/415V; 20kA at AC660/690V |
| Rated Service Short-Circuit Breaking Capacity Ics | 50kA at AC380/400/415V; 15kA at AC660/690V |
| Rated Instantaneous Trip Current Ii | 10In |
| Frequency | 50/60Hz |
| Reference Temperature | +40°C |
| Utilization Category | Cat. A |
| Standard | IEC/EN 60947-2 |
| Certification Marking | CE |
Product Details
The BTM8-125/3300 features a compact molded enclosure with a clearly organized three-pole terminal structure. The LINE marking on the upper side and LOAD marking on the lower side help distinguish the incoming and outgoing connections.
The front-mounted operating handle provides convenient manual switching, while the 125A rating is clearly displayed below the handle for quick product identification.
The front nameplate provides important electrical information, including the model, operating voltage, short-circuit breaking capacity, insulation voltage and impulse withstand voltage.












