A standard and its success story

(See Murrelektronik at Machine Building North, 13 May 2026, on stand 24)

System designers are increasingly opting for MQ 15 connectors to supply power quickly, cost-effectively and safely to asynchronous or three-phase motors up to 7.5 kW or to frequency converters. The standardisation of the pin assignments for AC and DC applications in accordance with the international standard IEC 61076-2-116 and the resulting guaranteed manufacturer-independent compatibility have further boosted this trend.

The MQ 15 connectors transmit high currents in the smallest of spaces - making them perfect for systems where space is limited. So instead of always having to rely on expensive M23 connectors - and thus incurring unnecessary costs in some cases without any meaningful benefit - the extensive series of MQ 15 connectors can cover a wide range of applications with power transmission values of up to 16A continuous load at a voltage of 600V for AC applications and 20A at a voltage of 48V for DC applications.

Superior quality and very attractive price/performance ratio

A key feature of the MQ 15 is a quick-release system reduces the time required for installation, service and maintenance by up to 80 percent. A quarter turn, an audible and perceptible "CLICK" to indicate a successful connection - and the power is flowing.

The connection is dust- and splash-proof to IP67, as well as shock and vibration resistant, making it fully suitable for industrial use, even in harsh conditions. And the hard silver-plated contacts guarantee long life (up to 500 mating cycles). Another important quality feature is the full PUR overmoulding of the ready-to-connect cables.

Murrelektronik also uses high-performance plastics instead of expensive metal parts - giving the MQ 15 connectors an excellent price-performance ratio.

The new switch cabinet feed-through designed specifically for these connectors also makes installation quicker and easier.