| Parameter | Specification |
|---|---|
| Product Model | SUNTREE SCB8-63 |
| Product Type | AC Miniature Circuit Breaker (AC MCB) |
| Rated Current (In) | 6A–63A |
| Rated Operating Voltage (Ue) | 230/400V AC (1P), 400V AC (2P/3P/4P) |
| Frequency | 50/60Hz |
| Pole Configuration | 1P / 2P / 3P / 4P |
| Ultimate Breaking Capacity (Icu) | 6kA |
| Rated Service Breaking Capacity (Ics) | 6kA |
| Maximum Impulse Current | 6kA |
| Mechanical Life | 20,000 Operations |
| Electrical Life | 4,000 Operations |
| Mounting | 35mm DIN Rail |
| Terminal Capacity | Up to 25mm² |
| Terminal Tightening Torque | 3N |
| Enclosure Material | V0 Fire-Retardant Enclosure |
| Installation Location | Indoor / Waterproof Box |
| Ambient Temperature | -5°C to +50°C |
| Maximum Altitude | ≤2000m |
| Relative Humidity | ≤90% |
| Pollution Degree | 2 |
| Installation Class | II / III |
| Weight per Pole | Approx. 0.12kg |
The SUNTREE SCB8-63 is available in the following rated current options:
| Model | Available Current Ratings |
| SCB8-63 | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
The selected current rating should be matched to the electrical load and conductor capacity of the protected circuit.
| Pole Configuration | Rated Operating Voltage |
| 1P | 230/400V AC |
| 2P | 400V AC |
| 3P | 400V AC |
| 4P | 400V AC |
The SCB8-63 is available in four pole configurations, allowing it to be used in different single-phase and multi-phase AC distribution applications.
| Parameter | Specification |
| Rated Operating Voltage (Ue) | 230/400V AC / 400V AC |
| Rated Current (In) | 6A–63A |
| Frequency | 50/60Hz |
| Ultimate Breaking Capacity (Icu) | 6kA |
| Rated Service Breaking Capacity (Ics) | 6kA |
| Maximum Impulse Current | 6kA |
The SCB8-63 is designed for AC circuits and provides interruption capability suitable for low-voltage electrical distribution and equipment protection.
| Protection Function | Specification |
| Overload Protection | Yes |
| Short-Circuit Protection | Yes |
| Circuit Isolation | Yes |
| Manual Switching | Yes |
| Dual-Power Manual Switching | Supported with Optional Interlock Accessory |
| Ultimate Breaking Capacity | 6kA |
| Rated Service Breaking Capacity | 6kA |
The SCB8-63 is intended to protect electrical lines and equipment against overload and short-circuit conditions. It can also be used for infrequent circuit switching and isolation.
The SCB8-63 uses a standard 35mm DIN rail mounting system, allowing quick installation in electrical distribution boards and control cabinets.
| Parameter | Specification |
| Mounting Method | 35mm DIN Rail |
| Terminal Capacity | 25mm² |
| Terminal Tightening Torque | 3N |
| Installation Location | Indoor or Waterproof Box |
| Weight per Pole | 0.12kg |
The DIN-rail design allows the breaker to be easily installed and fastened onto a standard 35mm device rail.
| Parameter | Specification |
| Mechanical Life | 20,000 Operations |
| Electrical Life | 4,000 Operations |
| Enclosure | V0 Fire-Retardant |
| Terminal Capacity | 25mm² |
| Weight per Pole | 0.12kg |
The SCB8-63 is designed for long-term operation, with a specified mechanical life of up to 20,000 operations and an electrical life of 4,000 operations.
| Parameter | Specification |
| Ambient Temperature | -5°C to +50°C |
| Maximum Altitude | ≤2000m |
| Relative Humidity | ≤90% |
| Pollution Degree | 2 |
| Installation Class | II / III |
| Installation Location | Indoor / Waterproof Box |
For applications outside these environmental conditions, the installation requirements should be evaluated according to the specific project conditions.
The SUNTREE SCB8-63 is an AC miniature circuit breaker (MCB) designed to provide overload and short-circuit protection for low-voltage AC electrical circuits.
The SCB8-63 is designed for AC systems with a rated operating voltage of 230/400V AC for 1P models and 400V AC for 2P, 3P and 4P models.
The SCB8-63 is available in 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A and 63A versions.
The SCB8-63 is available in 1P, 2P, 3P and 4P configurations.
The SCB8-63 has an ultimate breaking capacity (Icu) of 6kA and a rated service breaking capacity (Ics) of 6kA.
The specified mechanical life is 20,000 operations, while the electrical life is 4,000 operations.
The breaker is designed for installation on a standard 35mm DIN rail and can be installed in electrical distribution boards and cabinets.
2 reviews for SUNTREE SCB8-63 Miniature Circuit Breaker
Tasgall –
Is this breaker suitable for protecting a small solar DC circuit, and what current ratings are available?
Sutton –
The compact design looks really practical for solar installations where space is limited.