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Industrial Power & Control Inc.

RB, DF and RR Series Load Limit Switches
Load limit switch

  These load limit switches can be installed onto a hoist at the rope's dead end or equalizer sheave. It can be designed for other installations with a power reel or remote control. This series of switch are very easy to install - they can be clamped onto the wire rope without the need to cut the rope or make modifications to the hoist.

The load limit device is activated from the deflection of the rope when the hook lifts the load. This increases the tension of the rope, which activates the limit device. The device can be electrically connected with the hoist's switch for either up or down motion, depending on the motion to be controlled. As well, it can work as both an upper limit switch and load limit switch as a special order.

RB Series single function switches feature a tension plate activated switch. The DF series adds an upper limit switch. Finally, the RR Series is a radio remote controlled tension plate activated switch.
Selection of Load Limit Switches
Load Limit
(Per Single Line)
Rope Size Model No. Dimensions
100 Lbs. to 1 Ton Up to 5/16" Dia. RB 10
DF 10
RR 10
2" W x 2" D * 8" L
2" W x 2" D * 8" L
2" W x 4" D * 8" L
1 Ton to 3 Ton 1/4 " to 1/2 " Dia. RB 20
DF 20
RR 20
2" W x 2" D * 12" L
2" W x 2" D * 12" L
4" W x 3" D * 12" L
3 Ton to 5 Ton 9/16" to 1" Dia. RB 30
DF 30
RR 30
2" W x 2" D * 18" L
2" W x 2" D * 18" L
4" W x 3" D * 18" L
We would be happy to assist you with your applications. For further information please contact us at info@ipandc.com.