ABB LC1000-SSP7 High-Current Molded Case Disconnector Switch with Overload Relay Module

• Rated Voltage: 380–690V AC, 50/60Hz
• Short-Circuit Breaking Capacity: 6kA (IEC 60947-2)
• Trip Class: Class 10 (105% In ≤ 5 seconds)
• Auxiliary Contacts: 1NO + 1NC
• Mechanical Life: 10,000 operations
• Electrical Life: 2,000 operations (AC-23A)
• Mounting: 35mm DIN rail or base plate
• Dimensions: 210 × 140 × 230mm
• Weight: Approximately 10kg
• Operating Temperature: -25°C to +55°C
• Protection Class: IP20 (handle: IP54 with cover)
• Certifications: IEC 60947-3, IEC 60947-4-1, CE, RoHS

Functional Features

• Zone Protection: Isolates faulty equipment (e.g., overloaded motors, short-circuited feeders) within 5 seconds, preventing upstream breaker tripping and system-wide shutdowns.
• High Precision: Dual-metal temperature compensation ensures consistent accuracy across extreme temperatures (-25°C to +55°C).
• Status Feedback: LED indicators (green = closed, red = tripped, yellow = charging) and auxiliary contacts transmit real-time status to PLCs for automated response.
• Compact Design: 30% space savings compared to traditional circuit breaker + contactor combinations, enabling denser cabinet layouts.
• Reduced Wiring: Directly drives AC 220V coils without intermediate relays, cutting cabinet wiring by 30%.
• Easy Maintenance: Resettable handle eliminates fuse replacement, reducing mean time to repair (MTTR) from 45 minutes to 2 minutes.
• Energy Efficiency: Supports single-busbar designs for 1000A circuits, cutting copper costs by 20% versus parallel busbars.

Application Scenarios

• Paper Mills: Protects 400kW vacuum pump feeders by integrating with AC 800M controllers to trigger immediate speed reduction during faults, preventing paper breaks.
• Data Centers: Monitors chiller pump motors via Modbus, uploading current and trip data to PMS for predictive maintenance based on historical failure patterns.
• Cement Plants: Safeguards 630kW circulating fans by leveraging 6kA breaking capacity to clear faults at the grid’s low-voltage side, reducing fault clearance time by 200ms.
• Water Treatment: Manages pump station liquid levels and flow rates, ensuring uninterrupted water distribution even during equipment failures.
• Oil & Gas: Controls submersible pumps in remote wells, withstanding harsh environments while providing reliable overcurrent protection.

Advantages

• Reliability: Designed for continuous operation in demanding industrial settings with minimal downtime.
• Scalability: Modular architecture supports expansion with additional I/O or communication modules.
• Cost-Effectiveness: Lowers total cost of ownership through reduced maintenance, energy savings, and space optimization.
• Future-Readiness: Compatible with Industry 4.0 trends, enabling integration with smart building and energy management systems.