Product Overview
Our 400-frame 6x16mm² circuit breaker extension terminal is a high-performance accessory designed to expand the wiring capacity of 400A molded case circuit breakers (MCCBs). This terminal block provides a compact, space-saving way to connect 6 separate circuits to a single 400A MCCB, making it ideal for centralized control panels and multi-circuit distribution systems where space is at a premium.
Space-Saving Advantages for Multi-Circuit Control Panels
This 6-outlet extension terminal is specifically designed to maximize space efficiency in multi-circuit control panels. The key advantages include:
Compact 6-Outlet Design
Provides 6 separate output circuits in a minimal footprint, eliminating the need for multiple smaller terminal blocks and reducing the overall space required for wiring by up to 30%.
Optimized Layout
The terminal block's compact layout is engineered to fit perfectly in standard 400-frame MCCB enclosures, with no wasted space and easy access to all terminals for wiring and maintenance.
Reduced Wiring Complexity
By providing a centralized connection point for 6 circuits, the terminal block simplifies panel wiring, reduces the amount of wire needed, and makes troubleshooting easier.
Series Navigation & Cross-Referencing
Our 400-frame circuit breaker extension terminal series includes a range of circuit counts to meet your project needs, with internal cross-referencing to help you select the right model:
3x16mm² Extension Terminal
Ideal for 3-circuit distribution, perfect for small control panels and single-phase systems.
4x16mm² Extension Terminal
Extension Terminal: Ideal for 4-circuit distribution, suitable for medium-sized control panels and three-phase systems.
6x16mm² Extension Terminal
Our most popular model, ideal for 6-circuit distribution, perfect for multi-circuit control panels and centralized distribution systems.
8x16mm² Extension Terminal
Ideal for 8-circuit distribution, suitable for large control panels and high-density wiring applications.
Each model is designed with the same high-quality construction and compatibility, allowing you to select the perfect circuit count for your specific application.
Core Technical Specifications
Rated Current: 400A continuous duty, matching the MCCB's current rating
Number of Circuits: 6 output circuits, each accommodating up to 16mm² copper wires
Wire Compatibility: 2.5mm² to 16mm² solid and stranded copper wires
Conductor Material: High-conductivity copper alloy with 5μm tin plating, providing excellent corrosion resistance and low contact resistance
Insulation Material: Flame-retardant, high-strength engineering plastic with UL94-V0 rating
Screw Torque: 1.2N·m to 1.5N·m for secure wire connections
Compatibility: Designed for all standard 400-frame MCCBs, including Schneider, Chint, ABB, Siemens, and Delixi models.
Installation Guidelines
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