Lever Wire Connectors (also called Lever-Type Terminal Blocks)are electrical connection devices that use a lever-operated clamping mechanism to secure wires without screws or tools.

Lever Wire Connectors Key Features

Tool-Free Operation

Lift the lever → insert wire → close lever = secure connection (ideal for quick installations).

Reusable & Maintenance-Friendly

Levers can be reopened to add/remove wires (unlike twist-on wire nuts).

Wide Wire Compatibility

Accommodates solid, stranded, and fine-stranded wires.

Vibration-Resistant

Spring tension maintains grip, preventing loosening in high-vibration environments (e.g., industrial machinery).

Installation Guide

1.Identify Terminal Type

Select a terminal block matching the cable specifications (e.g., wire gauge, current rating).

2.Strip Cable Insulation

Use a wire stripper to remove insulation, exposing adequate bare conductor (typically 8-10mm).

3.Insert Conductor

Fully insert the stripped wire into the terminal cavity until contact is made with the metal clamp.

4.Secure Connection

Tighten the terminal screw with a screwdriver (torque as specified, e.g., 0.5 Nm) to ensure strain relief.

5.Tug Test

Verify firmness by gently pulling the wire; no movement indicates proper fixation.

6.Multi-Cable Management

For branching, use jumper bars on terminal blocks to maintain organized parallel connections.

7.Final Circuit Inspection

Conduct continuity and polarity checks to validate all terminations.

Safety Notes:

De-energize circuits before installation.

Avoid over-tightening screws to prevent conductor damage.

Accessories for CMK420 Lever Wire Connectors

Our CMK420 Lever Wire Connectors support parallel connections using jumper bars.

Our CMK420 Lever Wire Connectors can be labeled using marking strips.

Our CMK420 Lever Wire Connectors feature:

• Purple Copper Conductors – Enhanced conductivity for superior electrical performance.

• Stainless Steel 301 Clamps – Provides a firmer, vibration-resistant grip to prevent loosening.

• Quick-Connect Design – Enables fast, tool-free wiring and hassle-free maintenance.