Ⅰ. Core Functions & Performance
Electrical Parameters
Parameter
Value
Notes
Rated Voltage
12kV
-
Rated Current
630A, 800A, 1250A, 1600A
Customizable
Short-Circuit Breaking Capacity
20kA, 25kA, 31.5kA
Customizable
Power-Frequency Withstand Voltage (1min)
Dry: 48kV / Wet: 38kV
DL/T403 Compliant
Lightning Impulse Withstand Voltage
75kV
-
Mechanical Life
≥10,000 operations
Spring mechanism, oil-free design
Short-Time Withstand Current (4s)
31.5kA
-
Control Characteristics
Operating Mechanism: Spring-operated (maintenance-free)
Coil Voltage (Closing/Tripping): AC/DC 110V/220V (optional)
Motor Operating Voltage: Customizable
Auxiliary Contacts: 8 NO (Normally Open) + 8 NC (Normally Closed)
Monitoring: Mechanical counter (operation records)
II. Applications & Compatibility
Typical Applications
Power Systems: Power plants, substation in/outlet protection
Industrial: Petrochemical, metallurgical, main distribution cabinets for manufacturing
Public Facilities: Airports, data centers, residential distribution networks
Switchgear Compatibility
Cabinet Series
Compatible Models
Domestic Cabinets
KYN28, KYN96, XGN series
International Cabinets
ABB ZS series
Installation Type: Fixed (Lateral Type)
Note: Custom non-standard cabinets supported; installation drawings required.
III. Technical Advantages & Innovations
Reliability Enhancement
Vacuum Interrupter: Explosion-proof, maintenance-free
APG Epoxy Casting: Monolithic insulation parts (humidity resistance ≤95%, pollution-proof)
VSC Terminal Buffer: Shock/vibration resistant (-25℃~+40℃)
Safety & Maintenance
Interlocking: Mechanical lock to prevent load switching errors
Visual Position Indicator: Mechanical ON/OFF status display
Modular Design: Rapid replacement of coils/auxiliary switches
IV. Customization Services
Customization Item
Options
Insulation Medium
Air-insulated / Gas-insulated (SF₆ alternative)
Secondary Wiring Layout
Front/Rear/Side wiring
Special Current Ratings
>1600A or >31.5kA designs
High-altitude Adaptation
≤2500m (derating required for higher elevations)
V. Installation & Maintenance
Environmental Requirements
Altitude: ≤2500m (15% derating beyond)
Temperature: -25℃ ~ +40℃
Humidity: Daily average ≤90% (non-condensing)
IP Rating: IP2X (upgrades to IP4X when installed)
Documentation Support
Certificates, installation drawings, wiring diagrams
Type test reports compliant with GB/DL/IEC standards
VI. Typical Configurations (Examples)
Application Scenario
Recommended Configuration
Protection Target
Substation Inlet Cabinet
VSC-1250A/31.5kA + Motorized
Main transformer short-circuit
Industrial Distribution Center
VSC-1600A/25kA + Rear Wiring
Large motor control
Commercial Complex
VSC-800A/20kA + Front Wiring
LV busbar segmentation
VII. Support Services
Rockwill Electric Technical Guarantee:
Technical Consultation: +86-577-27869966, support@rockwill.com
Customization Response: ≤3 business days
Warranty: 2 years (core components included)
Resources: http://www.rockwill.cn
