Terminal connector Simet ZGG1x70/4x16z-g — AL/CU 1×70 mm² to 4×16 mm², yellow-green

Simet ZGG1x70/4x16z-g is a bi-metal terminal connector designed for joining aluminum and copper conductors in low-voltage electrical installations. The connector accepts one 70 mm² conductor and distributes the connection to four 16 mm² conductors. Its yellow-green color identifies the part for grounding/earthing applications and the bi-metal construction ensures compatible mechanical and electrical joining of AL and CU conductors.

Advantages

The bi-metal design provides reliable electrical contact between dissimilar metals while minimising galvanic corrosion. Compact construction saves space in junction boxes and on grounding bars. The yellow-green insulation/identification simplifies installation and inspection for earthing networks. The connector delivers secure mechanical clamping to maintain stable contact under typical low-voltage loads and environmental conditions.

Suitable for

• Grounding and earthing connections in residential and commercial low-voltage systems
• Joining one 70 mm² aluminum conductor to multiple 16 mm² copper conductors
• Electrical panels, junction boxes and grounding bars where space is limited
• Retrofitting or extending grounding conductors when mixing AL and CU materials

Key specifications

• Compatible conductors: aluminum (AL) and copper (CU)
• Primary conductor size: 1 × 70 mm²
• Secondary conductor sizes: 4 × 16 mm²
• Color/identification: yellow-green for grounding use
• Construction: bi-metal contact to prevent dissimilar metal issues
• Application: low-voltage electrical installations and grounding systems

How to use

Strip the insulation from conductors to the length recommended by the connector manufacturer and ensure conductor strands are clean and free of oxidation. Insert the 70 mm² conductor into the designated AL/CU port and the four 16 mm² conductors into their respective ports. Tighten the clamping screws or bolts to the specified torque values to secure mechanical and electrical contact. Verify that the yellow-green connector is properly seated and that each conductor is fixed without movement. After installation, perform continuity or resistance checks as required by local electrical codes.

Usage recommendations

Use the connector only within its rated conductor size range and for grounding/earthing circuits as indicated by the yellow-green identification. Follow local standards and torque specifications when tightening clamps, and avoid using the connector in environments with aggressive chemicals or prolonged immersion unless specified by the manufacturer.