Current Sensors / Transformers - Transformers

API Technologies
Part Number Information
Part #: Price/Availability:
Current Sense Transformer Buy Now

API Technologies offers a wide range of current sensors that measure electrical current (AC & DC) and can transform current from high to low measurable values. API series 5300 current sensors are available with current ranges from 3.5 Amps to 800 Amps in six subcategories of current transformers.

• Standard Accuracy Mini CT (5300)
• Wide Range Mini CT (5300)
• Standard Accuracy Economy Series (5301 - 5313)
• High Accuracy Mini CT (5326-5330)
• High Accuracy Compact Series (5351-5356)
• Digital Metering CT (5381-5385)
• Flip-Top (53FT)


• Measures electrical current by transforming current from high to low measurable values
• Wide primary current range of 3.5 to 800 amps
• 50 Hz to 100 kHz operating frequency
• Available totally encapsulated, with or without wound primary turns and loading resistor
• Built to meet UL, MIL, VDE, CE specs. EMRL current transformers meet UL1244
• Ideal for ampmeters, wattmeters, relays and cross current compensation


• Advanced fault tolerant computers and workstations
• Telecom and communications
• Control panels reading current flowing to electric transformer