Bar mounted contactors

The R series contactors are built on a main frame supporting the electro-magnet, the main poles and the auxiliary contacts.
This design offers a great construction flexibility for the standard contactors as well as for the tailor made versions :

• variable number of poles acc. to requirements
• poles without or with blow-out coils, rated for the current flow in the poles
• N.O. poles
• N.C poles set "make before break" or "break before make" when combined with N.O. poles
• large number of standard, timed, adjustable N.O. and N.C. auxiliary contacts
• electro-magnets with specific features depending on both the control voltage supply and the utilization characteristics.

• Magnetic : instantaneous tripping on high current peaks or on short-circuit conditions withing the limits of the contactors max. breaking capacity.
• Thermal : inverse time delayed tripping according to the overload value and its duration.