Max Hauri Flat Plug and Socket AC 166 – 3-Pole 20A Industrial Connector
The Max Hauri AC 166 flat plug and socket set is a 3-pole industrial connector rated for 20A at 250V with IP20 ingress protection. It is designed for fixed installations in building and electrical systems where a reliable, flush-mount connection is required.
3-pole configuration rated 20A / 250V — suitable for three-phase AC power distribution
IP20 protection rating — protects against solid objects over 12.5mm, suitable for indoor installations
Flat design with screw-clamp terminal on Side B — compact profile for tight mounting spaces
Mounting coupler (Montagekupplung) type — enables secure, tool-less coupling of plug and socket
What sets the Max Hauri AC 166 apart
The flat form factor distinguishes this connector from standard round industrial plugs, allowing it to sit flush against walls and panels. The screw-clamp terminal on Side B provides a secure cable connection without requiring specialized crimping tools.
Ideal for...
Building electrical installations, temporary power distribution on construction sites, and indoor machinery connections where a compact, flush-mount connector is needed. Suitable for professional electricians and facility maintenance teams managing three-phase AC circuits.
Application of Max Hauri AC 166
Used in energy and power distribution systems to connect three-phase AC equipment. The mounting coupler design allows the plug and socket to be joined and separated repeatedly without tools, making it well suited for semi-permanent installations in switch cabinets and distribution boards.
Max Hauri is a Swiss manufacturer of electrical connectors and accessories for building and industrial power distribution. The brand supplies flat and round plug-and-socket systems, mounting couplers, and adapter components for three-phase and single-phase AC circuits, primarily for indoor and semi-outdoor installations.
It is used for connecting three-phase AC equipment in building electrical installations, switch cabinets, and power distribution boards. The flat design allows flush mounting against walls and panels.
The connector is rated for 3 poles, 20A current, and 250V AC voltage, making it suitable for standard three-phase industrial power distribution in indoor environments.
IP20 provides protection against solid objects larger than 12.5mm and offers no protection against water ingress. It is suitable for indoor installations where the connector is not exposed to moisture or direct water contact.
Side B features a screw-clamp terminal (Schraubklemme) that secures the cable by tightening a screw around the stripped conductor. No special crimping tool is required for installation.
Yes, the Max Hauri AC 166 set includes both the flat mounting plug and the corresponding socket (Montagekupplung), designed to couple together for a secure, repeatable connection.
Subscribe to the newsletter
New arrivals, promotions and exclusive offers — straight to your inbox.
Please complete your information below to login.
Sign In
Create New Account