Motor protection

Reliable motor protection for hazardous areas
R. STAHL offers various components that have been specially designed for protecting motors in Ex Zones 1 and 2. They are built into Ex e enclosures, and are easy to install, robust, and corrosion-resistant. It goes without saying that, when it comes to switching operations, they offer 100% reliability.

R. STAHL offers a great many components with various functions for protecting motors. They are built into enclosures with Ex e type of protection and are available as motor protection circuit breakers, motor protection relays, thermistor motor protection relays, a combination of contactor and motor protection relay (max. 4, 7.5 or 11 kW at 400 V) and as contactors (max. 4 W at 400 V) with thermistor motor protection relay. All motor protection components have a corrosion-resistant enclosure and easily accessible connection terminals to make installation easier and allow for safe connection. They can be reliably secured in the enclosure with screws such that they do not vibrate.

  • Protection for motors in the form of circuit breakers, motor protection relays or thermistor motor protection relays, or alternatively in combination with a contactor
  • Easily accessible connection terminals for safe connection and easy installation
  • Vibration-proof screw connection

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