Filter through our complete catalog of IEC 61869-3 & IEEE C57.13 compliant instrument transformers (0.5kV to 35kV): Cast Epoxy Resin Dry-Type Voltage Transformers (VT/PT), Current Transformers (CT) and Combined CT+VT units.
Indoor Low Voltage Current Transformer 0.66kV State Grid Standard
Indoor low voltage current transformer, 0.66kV rated, epoxy resin casting type, State Grid standard, for high precision current measurement in low voltage distribution systems. Complies with IEC 61869 and GB/T 20840 standards. High accuracy class 0.2S, reliable performance. Compact size, easy installation, suitable for metering applications. Customizable ratios and specifications.
Indoor Low Voltage Bury-plug Current Transformer 0.66kV
Indoor low voltage bury-plug type current transformer, 0.66kV rated, epoxy resin casting type, for current measurement, control and protection in low voltage distribution systems. Complies with IEC 61869 and GB/T 20840 standards. Bury-plug terminal design with connection pipes, easy and safe wiring. Compact size, transparent dust cover, clean and safe. Wide range of current ratios available. Customizable ratios and specifications.
Indoor Low Voltage Current Transformer 0.5kV
Indoor low voltage current transformer, 0.5kV rated, epoxy resin casting type, for current measurement and protection in low voltage distribution systems. Complies with IEC 60044-1 and GB/T 1208 standards. Wide range of current ratios available, multiple accuracy classes 0.2, 0.5, 1.0. Compact size, easy installation, suitable for switchgear and panel mounting. Customizable ratios and specifications.
Indoor Low Voltage Current Transformer 0.66kV
Indoor low voltage current transformer, 0.66kV rated, epoxy resin casting type, for current measurement and protection in low voltage distribution systems. Complies with IEC 61869 and GB/T 20840 standards. Wide range of current ratios available, multiple accuracy classes. Compact size, easy installation, suitable for switchgear and panel mounting. Customizable ratios and specifications.
Indoor Low Voltage Current Transformer 0.66kV
Indoor low voltage current transformer, 0.66kV rated, epoxy resin casting type, for current measurement and protection in low voltage distribution systems. Complies with IEC 61869 and GB/T 20840 standards. Wide range of current ratios available, multiple accuracy classes. Compact size, easy installation, suitable for switchgear and panel mounting. Customizable ratios and specifications.
Indoor Low Voltage Current Transformer 0.66kV Busbar Type
Indoor low voltage current transformer, 0.66kV rated, type III, busbar fixed installation, for current measurement and metering in low voltage distribution systems. Complies with IEC 61869 and GB/T 20840 standards. Large capacity, high accuracy, suitable for three-phase vertical busbar arrangement. Easy installation, wide range of current ratios available. Customizable ratios and specifications.
Indoor Single-phase Epoxy Cast Current Transformer 12kV
Indoor single-phase epoxy resin casting CT, compliant with GB/T20840.1/2 & IEC61869-1/2, insulation level 12/42/75kV, 50/60Hz, secondary current 5A/1A. Optional primary current ranges:20-200A、300-400A、500-600A、800-1000A、1200-1250A、1500-3150A; richer rated output options for protection winding, net weight 80kg, operating temperature -5℃~+40℃.
Indoor Single-phase Epoxy Cast Current Transformer 12kV
Indoor single-phase epoxy resin casting CT, compliant with GB/T20840.1/2 & IEC61869-1/2, insulation level 12/42/75kV, 50/60Hz, secondary current 5A/1A. Optional primary current ranges:20-200A、300A、400A、500-600A、800-1000A、1200-3150A; multiple accuracy combinations of metering and protection grades, matched thermal/dynamic withstand parameters for each range, net weight 62kg, operating temperature -5℃~+40℃.
State Grid Standard 0.66kV Current Transformer
Indoor epoxy cast LV current transformer, State Grid standard, primary rated current 800-1500A, accuracy 0.2S/0.5S.
State Grid Standard 0.66kV Current Transformer
Indoor epoxy cast LV current transformer, State Grid standard, primary rated current 600-800A, accuracy 0.2S/0.5S.
Series 10kV Three-Phase Integrated Current Transformer with Zero-Sequence Winding
Zero sequence current transformer for low voltage systems, rated 0.72/3kV. Rectangular through-core design for cable installation. Rated frequency 50/60Hz, secondary current 5A or 1A. Ambient temperature range -40°C to +40°C. Compliant with IEC 61869 and GB/T 20840 standards. Used for ground fault protection and residual current monitoring. Epoxy resin cast, reliable performance, easy installation.
10kV Indoor Epoxy Cast Single-Phase Current Transformer for Switchgear Metering & Protection
Low voltage indoor epoxy resin cast current transformer, rated 0.72/3kV. Suitable for low voltage distribution systems. Rated frequency 50/60Hz, secondary current 5A or 1A. Ambient temperature range -40°C to +40°C. Compliant with IEC 61869 and GB/T 20840 standards. Epoxy resin cast construction, reliable performance, easy installation. Customizable current ratio and accuracy class.
Indoor Single-phase Epoxy Resin Casting Current Transformer 10kV
Indoor single-phase epoxy resin casting current transformer conforming to GB/T20840.1/2 and IEC61869-1/2 standards. Insulation level:12/42/75kV, rated frequency 50/60Hz, secondary rated current 5A or 1A. Optional primary current ranges:30-400A、500-800A、1000-1500A; abundant accuracy combinations like 0.2S0.5/10P15 with diversified rated output specifications. Short-time thermal current 100I₁ₙ / 31.5kA, rated dynamic current 250I₁ₙ /80kA, net weight 33kg, operating ambient temperature -5℃~+40℃, suitable for metering and relay protection in medium-voltage switch cabinets.
Indoor Single-phase Epoxy Resin Casting Current Transformer,10kV
Indoor single-phase epoxy resin casting current transformer complying with GB/T20840.1/2 and IEC61869-1/2 standards.Insulation level:12/42/75kV,frequency 50/60Hz,secondary current 5A or 1A. Wide optional primary current ranges from 20A-6000A, multiple accuracy combinations for metering and protection, secondary winding tap-change available for partial versions. Matched short-time thermal & dynamic withstand current for different specifications,suitable for MV switch cabinet metering & relay protection. Ambient operating temperature:-5℃~+40℃,multiple dimension & weight options for different sub-versions.
Indoor Single-phase Epoxy Resin Casting Current Transformer
Indoor single-phase epoxy resin casting current transformer complying with GB/T20840.1/2 and IEC61869-1/2 standards, insulation level 12/42/75kV, rated frequency 50/60Hz, secondary current 5A or 1A. Optional primary current ranges:20-200A、300A、400A、500-600A、800A、1000A; accuracy combinations of 0.2S/10P、0.5S/10P with rated output:0.2S10VA、0.5S10VA、10P10 15VA、10P15 10VA. Matched thermal and dynamic withstand parameters for each specification, net weight 16kg, operating ambient temperature -5℃~+40℃.
Indoor Single-phase Epoxy Resin Casting Current Transformer
Indoor single-phase epoxy resin casting current transformer complying with GB/T20840.1/2 and IEC61869-1/2 standards, insulation level 12/42/75kV, rated frequency 50/60Hz, secondary current 5A or 1A. Optional primary current ranges:20-200A、300A、400A、500-600A、800A、1000A; accuracy combinations of 0.2S/10P、0.5S/10P with rated output:0.2S10VA、0.5S10VA、10P10 15VA、10P15 10VA. Short-time thermal current 80I₁ₙ, dynamic stable current 200I₁ₙ, net weight 16kg, operating ambient temperature -5℃~+40℃.
Indoor Single-phase Epoxy Resin Casting Current Transformer 10kV
Indoor single-phase epoxy resin casting current transformer complying with GB/T20840.1/2 and IEC61869-1/2 standards, insulation level 12/42/75kV, rated frequency 50/60Hz, secondary rated current 5A or 1A. Optional primary current ranges:20-400A、500-600A、800A、1000A; accuracy combinations 0.2S/10P15、0.5S/10P15 with rated output:0.2S10VA、0.5S10VA、10P15 15VA. Short-time thermal current 60I₁ₙ, dynamic stable current 120I₁ₙ, net weight 15kg, operating ambient temperature -5℃~+40℃.
Double Cable Current Transformer
Indoor epoxy resin casting double cable current transformer, compliant with GB/T20840.1, GB/T20840.2 and IEC61869-1, IEC61869-2 standards.
Indoor Single-phase Epoxy Resin Casting Current Transformer
Indoor single-phase epoxy resin casting current transformer complying with GB/T20840.1/2 and IEC61869-1/2 standards, insulation level 12/42/75kV, rated frequency 50/60Hz, secondary rated current 5A or 1A. Optional primary current ranges:20-200A、300A、400-600A、800A、1000A; accuracy combination 0.2S/10P10、0.5S/10P10, rated output:0.2/0.5 class 10VA, 10P10 15VA. Short-time thermal current 90I₁ₙ, dynamic stable current 160I₁ₙ, net weight 14.5kg, operating ambient temperature -5℃~+40℃.
State Grid Standard 0.66kV Current Transformer
Indoor epoxy cast LV current transformer, State Grid standard, primary rated current 75A, accuracy 0.2S/0.5S, for metering in low-voltage distribution systems.
Indoor Low Voltage Split-core Current Transformer 0.66kV Open Type
Indoor low voltage split-core open type current transformer, 0.66kV rated, for current measurement and protection in low voltage distribution systems. Complies with IEC 61869 and GB/T 20840 standards. Split-core design, can be directly installed on existing busbars without power interruption. Easy installation, wide range of current ratios available. Customizable ratios and specifications.
Indoor Single-phase Epoxy Resin Casting Current Transformer
Indoor single-phase epoxy resin casting current transformer complying with GB/T20840.1/2 and IEC61869-1/2 standards, insulation level 12/42/75kV, rated frequency 50/60Hz, secondary current 5A or 1A. Optional primary current ranges:5-15A、20A、30-40A、50-60A、75A、100-200A、300-400A、500-600A、800A; accuracy combination 0.2S/5P、0.5S/5P with diversified rated output specifications. Corresponding short-time thermal current and dynamic stable current for each current grade, net weight 21kg, operating ambient temperature -5℃~+40℃.