Power braking resistors model RA

The ROP High Tension Type Resistor Groups are made up of stainless steel frames with resistive wire windings, supplied assembled in packs and connected serially or in parallel (depending on the final ohm value), mounted and fixed inside a galvanised steel case with an open bottom and lateral slots for cooling.
These resistors are used in start up and adjustment of motors, in electric braking devices and in load systems for generating sets, testing benches, suppression of harmonics and grounding of the star centre.
The high value of power and the great amount of energy that can be dissipated are obtained by the important content of alloy in the winding and by the high impulse temperatures that can be supported without creating alterations or damages.
The high level of insulation is obtained through the use of top quality ceramic materials.


· Standard tolerance: ± 5%
· Temperature coefficient: ≤ 100 ppm/°C
· Maximum tension applicable: 1000 V
· Level of protection: IP22 Standard – IP23
· Connection directly on resistor terminals from the open bottom


· Application of a protective thermostat
· Ohm values off standard compatibly with production
· Intermediate sockets
· Off standard tolerances
· Epoxy powder paint in RAL colours on request.
· Special casing for tension up to 140 KW
· Level of IP protection provided on request (compatibly with production)




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