Power terminal block Delta LZ-4/POL — 4-pole power connector, screw-type

Delta LZ-4/POL is a 4-pole screw-type power terminal block engineered for distribution and wiring in control cabinets, switchgear and industrial electrical equipment. The connector is designed to clamp conductors securely and form common power rails or join multiple conductors within power circuits. Its compact footprint and screw-clamp mechanism allow straightforward installation in panel-mounted and DIN-rail-adjacent assemblies.

Advantages

The screw-type clamping provides a reliable mechanical and electrical connection suitable for repeated inspections and maintenance. The 4-pole layout enables organised distribution of phases, neutral and ground or multiple circuits in a single module. Construction and materials are selected to withstand typical industrial operating conditions while minimising contact resistance and ensuring stable current flow.

Suitable for

• Power distribution in control cabinets and switchgear
• Creating common power rails and joining conductors
• Industrial electrical panels and equipment wiring
• Applications requiring screw-type terminal connections

Key specifications

• Number of poles: 4
• Connection type: screw clamp
• Mounting format: panel or modular terminal block arrangement
• Typical use: power distribution and conductor joining

How to use

Mount the terminal block in the desired panel location or within the modular terminal assembly, ensuring appropriate spacing and mechanical fixation. Strip conductor insulation to the recommended length for the screw terminals, insert conductors into the corresponding poles and tighten screws to the specified torque for secure contact. Verify mechanical stability and electrical continuity after installation and perform routine checks to confirm tightness and absence of overheating.

Usage recommendations

Follow applicable national and local electrical codes and use the correct conductor cross-section and torque values for screw terminals. Avoid exceeding rated current and ensure proper insulation and separation between adjacent circuits to maintain safety and reliable operation.