11kV Three Pole Circuit Breaker 630A - 1250A Switchgear Vacuum Circuit Breaker
Price:
$800-$3999
MOQ:
1pc
Delivery Time:
15 days
Brand:
MacweyTek
Product Description
11kV 3 Pole Vacuum Circuit Breaker 630A-1250A for RMU Switchgear
630A | 1250A | 11kV | For RMU Switchgear
Three phase AC 50Hz indoor high-voltage switchgear, specifically designed for rated voltage 12kV (extended to 24kV and 35kV) power systems. Provides control and protection of transmission and distribution lines, with optimal performance for frequent operations and short-circuit current breaking scenarios. Complies with international standards including GB1984, DL/T403, and IEC60056.
Key Specifications
Basic Parameters
| Parameter | Value |
|---|---|
| Rated Voltage | 12kV/24kV (three-phase AC 50Hz) |
| Rated Current | 630A, 1250A, 1600A, 2000A, 2500A, 3150A |
| Short Circuit Breaking Current | 20kA, 25kA, 31.5kA, 40kA |
| Peak Short-Circuit Closing Current | 50kA (20kA level) to 100kA (40kA level) |
| Power Frequency Withstand Voltage | 42kV/1min |
| Lightning Impulse Withstand Voltage | 75kV (peak) |
Mechanical Characteristics
- Contact Opening Distance: 11 ± 1mm
- Contact Stroke: 3.5 ± 0.5mm
- Average Opening Speed: 1.1 ± 0.2m/s
- Closing Bounce Time: ≤ 2ms (≤ 3ms@40kA)
- Opening Time: ≤ 50ms
- Closing Time: ≤ 100ms
- Mechanical Lifespan: 20,000-30,000 cycles
Structural Features
- Integrated design with operating mechanism and circuit breaker body
- Supports fixed or handcart installation
- Vacuum arc extinguishing technology in epoxy resin insulation cylinder (APG process)
- Energy Storage Motor: Permanent magnet DC motor (AC/DC 110V/220V universal)
- Energy Storage Time: ≤ 15 seconds
Environmental Requirements
- Temperature Range: -15℃ to +40℃ (storage/transportation to -30℃)
- Altitude: ≤ 1000m (up to 4500m for plateau type)
- Relative Humidity: Daily average ≤ 95%, monthly average ≤ 90%
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Get in Touch
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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