ACB Air Circuit Breaker | Intelligent Universal Breaker
3P/4P Fixed / Drawer-type Air Circuit Breaker, 400A~6300A for Main Distribution
$750.00
Overview
Nelink KJW1 series air circuit breaker is a low-voltage main switching and protection device designed for AC 50Hz, rated voltage up to 400V/690V power systems. It is used as main incoming breaker in low voltage distribution switchboards for protection of lines, generators and motors against overload, short-circuit, undervoltage and reverse current. Available in fixed type and drawer-type (withdrawable) structure, spring operating mechanism, electronic protection relay. High breaking capacity, reliable performance. Compliant with GB and IEC standards, widely used in power plants, substations, industrial and commercial buildings.
Key Features
Available in fixed type and drawer-type (withdrawable) structure
Spring operating mechanism, manual / motorized operation
Electronic protection relay with adjustable overcurrent, short-circuit and undervoltage protection
High breaking capacity up to 80kA
Mechanical interlock and position indication
Manufactured in accordance with GB 14048.2 & IEC 60947-2
Technical Specifications
Item | Specification |
|---|---|
Product Model | KJW1 Series |
Product Type | Air Circuit Breaker (ACB) |
Rated Voltage | AC 400V / 690V |
Rated Current | 400A/ 630A / 1000A / 1600A / 2000A / 2500A / 3200A / 4000A / 5000A / 6300A |
Poles | 3P / 4P |
Rated Frequency | 50Hz / 60Hz |
Rated Short-Circuit Breaking Capacity | 50kA / 65kA / 80kA |
Installation | Fixed type / Drawer-type (withdrawable) |
Standard | GB 14048.2, IEC 60947-2 |
Applications
Main low voltage switchboards, power plant auxiliary power supply, industrial main distribution, commercial building main switch, generator protection, large capacity distribution systems.
Ordering & Support
Send rated current, poles, installation type (fixed / drawer), breaking capacity and quantity to levit@nelink.net or WhatsApp +86 15622712297 for a configured quotation.
