WIRE WOUND EMS TYPE RESISTOR ELEMENTS

Wire would EMS type resistor elements are complementary to the range of CL/RL type resistors and are used when the required ohmic values are high in relation to the power to be dissipated. The materials employed for assembly
(Ni-Cr wire, ceramics and stainless steel) are suitable for all kinds of environments. Inductance, though generally low, can be reduced by using non-magnetic supports or anti-parallel windings. The flat cross section ensures the best utilization of the available space envelopes.

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WIRE WOUND RCE TYPE RESISTOR ELEMENTS

These elements are used when ohmic values are very high. Thin wire is used for the elements. It is wound on a ceramic support and held in position by a layer of cement and silicon. The ceramic support provides a very high thermal capacity. Such elements are therefore mainly used when short time high energy power is applied.

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RESISTORS BUILT WITH JF GRIDS

JF grid resistors elements are produced from coils of Ni-Cr steel strip. The strip is fed into a totally automatic plant where it is stamped and cut in various sizes. For a detailed description see our catalogue of resistors for railway applications