Current sensors for electronic measurement of alternating, direct, pulse and mixed currents with galvanic insulation between the primary circuit (strong current) and secondary circuit (electronic circuit). Hall Effect measuring principle. Used with AC variable speed drives, static converters for DC motor drives, battery supplied applications, switched mode power supplies (SMPS) or uninterrupted power supplies for welding applications. The SP 2 version features a single-pole power supply. UL 94-V0 self-extinguishing PBT polycarbonate insulated housing.