High Capacity LV Circuit Breaker 125A - 630A MCCB Molded Case Circuit Breaker With Residual Current Protection
Price:
$10
MOQ:
1
Delivery Time:
20 days
Brand:
MacweyTEK
Product Description
High Capacity 125A to 630A MCCB Molded Case Circuit Breaker with Residual Current Protection
Available Ratings: 125A 400A 630A 800A 1250A | 3P 4P
Product Description
The MKLB-L series molded case circuit breaker with residual current protection is designed for infrequent switching and motor starting in AC 50Hz/60Hz circuits. It features:
- Rated insulation voltage: 1000V
- Rated operating voltage: 400V
- Current ratings up to 800A
- Overload, short circuit, and under voltage protection
- Provides indirect contact protection for personnel
- Protection against fire hazards from undetected grounding faults
- 30mA residual current protection available
Key Features
- Available in L-type and M-type based on breaking capacity
- Compact design with high breaking capacity
- Short arc duration and high vibration resistance
- Flexible installation (vertical or horizontal)
- Includes isolation function
- Compliant with IEC60947-2 and GB14048.2 standards
- Standard wiring configuration (reverse wiring available as custom option)
Technical Specifications
| Parameter | 125A | 250A | 400A | 630/800A |
|---|---|---|---|---|
| Rated current IN, 40℃ | 16-125A | 100-250A | 225-400A | 400-800A |
| Rated insulation voltage Ui(V) | 1000 | |||
| Rated operating voltage Ue(V) | 400 | |||
| Rated residual operating current (Type I) | 30-300mA | 30-300mA | 100-500mA | 100-500mA |
| Rated residual operating current (Type II) | 100-500mA | 100-500mA | 300-1000mA | 300-1000mA |
| Electrical life (power-on) | 3000 | 1500 | ||
| Mechanical life (power-off) | 7000 | 5000 | ||
Breaking Capacity
| Type | L | M |
|---|---|---|
| Rated ultimate short circuit breaking capacity Icu (kA) | 35-50 | 75-85 |
| Rated service short circuit breaking capacity Ics (kA) | 22-35 | 50-65 |
Note: The circuit breaker has isolation function and complies with international safety standards. Custom configurations including reverse wiring are available upon request.
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Company
Ningbo Macwey Industrial Technology Co.,Ltd
Location
No.218, Weier Road, Chongshou Industrial Park, Cixi City (Ningbo), China
Contact Person
Alec Sung