2180120 Cembre A3-M5/9 RING TERMINAL WITH NARROW CONNECTION

Why Choose the Cembre 2180120 A3-M5/9 Narrow-Palm Copper Ring Terminal?

The Cembre 2180120, also designated as the Cembre A3-M5/9, is a professional non-insulated narrow-palm copper compression ring terminal designed to terminate 16 mm² copper conductors onto M5 threaded studs. As part of the specialist Cembre A-M contained-palm terminal series, it is specifically developed for low-voltage circuit breakers and other electrical equipment with reduced-space terminal blocks.

Manufactured from annealed electrolytic copper tube with a purity above 99.95%, the Cembre A3-M5/9 provides excellent electrical conductivity and the ductility required for dependable compression crimping. Its electrolytic tin-plated finish helps protect the copper against oxidation and corrosion, supporting reliable long-term performance in industrial control panels, switchgear and power distribution assemblies.

The terminal combines a 16 mm² conductor capacity with a compact 9 mm palm width, allowing easier installation where conventional cable lugs are too wide. It features a 5.3 mm fixing hole, an internal tapered barrel for easier conductor insertion and an inspection hole that enables installers to verify correct cable positioning before crimping.

Key Advantages

• Compact narrow-palm compression terminal for restricted terminal spaces.
• 16 mm² conductor capacity for industrial copper cable connections.
• M5 stud compatibility for low-voltage circuit breakers and equipment terminals.
• High-purity annealed copper provides excellent conductivity and crimping performance.
• Electrolytic tin plating improves resistance to oxidation and corrosion.
• Inspection hole confirms correct conductor insertion before crimping.

Key Features

• Cembre A-M contained-palm ring terminal series.
• Manufacturer part number: 2180120.
• Terminal designation: A3-M5/9.
• 16 mm² / 6 AWG conductor compatibility.
• M5 fixing hole with a nominal 5.3 mm diameter.
• 9 mm narrow palm for reduced-space terminal blocks.
• Internally tapered barrel for easier conductor insertion.
• Suitable for hexagonal and indent compression crimping.

Reliable Cable Termination for Reduced-Space Circuit Breakers

Narrow-palm compression terminals are designed for electrical equipment where the available connection width is smaller than the palm of a conventional cable lug. The contained 9 mm palm of the Cembre A3-M5/9 allows a 16 mm² conductor to be connected securely to compact M5 terminals without compromising electrical or mechanical performance.

The Cembre A-M contained-palm series creates a permanent electrical connection by compressing the annealed copper barrel around the conductor strands. When installed using a compatible professional crimping tool and the correct die, the terminal provides excellent electrical continuity, high pull-out resistance and dependable performance under vibration and thermal cycling.

Typical Applications

• Low-voltage circuit breakers with reduced-space terminals.
• Industrial control panels and electrical cabinets.
• Switchgear and power distribution assemblies.
• Motor control centres and machinery connections.
• Compact busbar and equipment-terminal connections.
• OEM automation systems and industrial electrical installations.