Bentong BTM8-400/3300 400A 3-Pole Molded Case Circuit Breaker for Electrical Protection
The Bentong BTM8-400/3300 is a 3-pole molded case circuit breaker rated at 400A, designed for circuit protection and switching in low-voltage electrical distribution systems. It supports AC380/400/415V and AC660/690V applications, with high short-circuit breaking capacity and reliable performance for industrial and commercial power distribution systems.
Product Features
The Bentong BTM8-400/3300 is a 3-pole molded case circuit breaker designed for electrical protection and switching in low-voltage power distribution systems. With a rated current of 400A, it is suitable for applications requiring higher current carrying capacity.
The circuit breaker features a robust molded housing and a front-mounted operating handle for convenient manual switching. The input and output terminals are clearly marked with LINE and LOAD, helping facilitate proper electrical connection.
The front panel includes a PUSH TO TRIP function for convenient testing and operation. The product also features clearly marked electrical ratings and compliance information for easy identification.
Application
The BTM8-400/3300 is suitable for electrical distribution and circuit protection applications where higher current capacity is required.
Typical applications include:
- Industrial power distribution systems
- Electrical distribution panels
- Commercial buildings
- Industrial control cabinets
- Power distribution equipment
- Machinery and electrical installations
It can be used for circuit protection and switching in suitable AC power distribution systems.
Specifications
| Specification | Details |
| Model | BTM8-400/3300 |
| Product Type | Molded Case Circuit Breaker (MCCB) |
| Number of Poles | 3 Poles |
| Rated Current In | 400A |
| Rated Operational Voltage Ue | AC380/400/415V, AC660/690V |
| Rated Insulation Voltage Ui | 1000V |
| Rated Impulse Withstand Voltage Uimp | 12kV |
| Rated Short-Circuit Breaking Capacity Icu | 85kA at AC380/400/415V; 30kA at AC660/690V |
| Rated Service Short-Circuit Breaking Capacity Ics | 65kA at AC380/400/415V; 20kA 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 BTM8-400/3300 features a sturdy molded enclosure designed for use in electrical distribution equipment. Its 3-pole configuration provides switching and protection for three-phase electrical circuits.
The front operating handle is designed for convenient manual operation, while the 400A rating is clearly displayed below the handle for quick product identification.
The terminal areas are clearly marked LINE and LOAD, helping distinguish the incoming and outgoing connections during installation. The front panel also provides the model number, voltage ratings, short-circuit ratings and applicable standard information.












