Technical Specifications

• Model: LQPSC 0.22KV/1250A

• Phase Configuration: Single-phase

• Rated Frequency: 60Hz

• Rated Voltage: 0.22kV (220V AC)

• Rated Current: 1250A

• Control Voltage: AC220V (switching operations)

• Protection Rating: IP20 (finger-safe design)

• Mechanical Endurance: 100,000 operations

• Key Component: Insulation knife-switch disconnector

• Installation: Indoor use only

Core Functional Features

• High-Current Distribution: 1250A continuous rating

• Safe Isolation: Insulation knife-switch for visible circuit disconnection

• Remote Control: Switch-on/off via 220V control signals

• Durability: 100,000 mechanical operations (3× industry standard)

• Protection: IP20 rating prevents finger contact with live parts

Insulation Knife-Switch Advantages

Design & Construction

• Robust Enclosure: 2.5mm galvanized steel construction

• Thermal Management: Natural convection cooling design

• Busbar System: Silver-plated copper with 1500A rating

• Component Layout: Segregated compartments for safety

• Isolation Verification: Clear visual gap indication

Industrial Applications

• Industrial manufacturing power distribution

• Large commercial building main switchboards

• Data center power distribution units

• Water treatment plant electrical systems

• Industrial process control centers

Safety Mechanisms

• Visible Disconnection: Clear isolation gap ≥15mm

• Interlock System: Prevents switch operation when closed

• Arc Containment: Designed to channel arc gases safely

• Grounding: Integrated grounding contacts

Installation Requirements

• Mounting: Floor-standing with M16 anchor bolts

• Clearances:

• Front: 1000mm minimum

• Rear: 400mm minimum

• Environmental Conditions:

• Temperature: -5°C to +40°C

• Humidity: ≤85% RH (non-condensing)

• Altitude: ≤2000m ASL

• Power Connections: 2× 300mm² per phase minimum

Operation & Maintenance

Switching Procedure

1. Verify load is within safe parameters

2. Ensure proper isolation using knife-switch

3. Engage remote control system

4. Monitor operation via status indicators

Maintenance Schedule

• Monthly:

• Visual inspection of knife-switch contacts

• Verify smooth operation mechanism

• Quarterly:

• Contact resistance measurement

• Insulation resistance test (min 1MΩ)

• Annual:

• Full operational sequence test

• Control circuit verification

• Every 50,000 Operations:

• Contact replacement

• Mechanism lubrication

Compliance Standards

• IEC 60947-3: Switches, disconnectors and fuse-combination units

• IEC 61439-1: Low-voltage switchgear assemblies

• IEC 60529: IP degree of protection

• IEEE C37.20: Switchgear standards

Certified for industrial power distribution with safety isolation capabilities.