Accessories Split-core Current Transformer, 1-Phase AC Type SCT166/125 * Split-core current transformer * Cable/bus-bar type current transformer * 5A (or 1A on request) secondary current * Class 0.5 available on request Product Description Ordering Key These split core current transformers can be used for currents from 500A to 3000A. The current transformers are made according to BS3938, EN60044-1 and DIN42600 standards. Model Primary current Secondary current Accuracy class Model SCT166/125 Primary Current Secondary current Accuracy class Bus-bar size: 62 x 127 mm Refer to Range Table 5A 1A (on request) 1 ... 3 (see table) 0.5 (on request) SCT166125 5005A C1 Type Selection Input Specifications Operating frequency Max. system voltage Rated insulation level Short-time current rating Ith Idyn Extended current rating Security factor (FS) General Specifications 50 to 60 Hz 0.72 kV 4kVRMS, 50Hz, 1 min 60 In 2.5 x Ith 120% 5, 10 Insulation class Protection Working temperature range Storage temperature Standards Connection Housing Output Specifications Rated secondary current 5A 1 A (on request) Mounting Standard accessories Accesories on request Special features Cable diameter Bus-bar size Specifications are subject to change without notice SCT166/125 DS 0703 E (MAX 120C) IP00 -20 to 45C -50 to 80C According to BS3938, EN60044-1 and DIN42600 M5 screw easy to handle and securing low contact resistance. ABS, self-extinguishing: UL 94 V-0 Bus-bar None None The terminal cover is fitted for a lead seal. This execution complies with the VGB4 protection of DIN57106 standard. Max. 62 mm 62 x 127 mm 1 SCT166/125 Range Table Rated Primary Current Rated secondary current 5 A (1 A on request) Class 1 Class 3 Class 0.5 (*) Burden Burden Burden 500 A 600 A 800 A 1000 A 1200 A 1250 A 2.5 VA 2.5 VA 5 VA 5/10 VA 5/10/15 VA 5/10/15 VA 5 VA 5/7.5 VA 10 VA 15 VA 20 VA 20 VA 1.5 VA 2.5 VA 5 VA 5 VA Primary Current Class 1 Class 3 Burden (VA) Burden Class 0.5 (*) Burden 1500 A 1600 A 2000 A 2500 A 3000 A 5/10/15 5/10/15 5/10/15/20 5/10/15/30 5/10/15/30 5/10 VA 5/10 VA 5/10/15 VA 5/10/15/20 VA 5/10/15/30 VA 20 VA 20 VA - Note: every accuracy class is showing many Burden values: the first value (e.g. 5 out of 5/10/15VA) is available as standard, while the other ones are available on request. * On request Dimensions (mm) Wiring Diagram Output secondary L N 2 Specifications are subject to change without notice SCT166/125 DS 0703