| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
1,037 pcs
|
1037 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Accuracy | |
| Ambient Storage Temperature | |
| Capacitive Loading | |
| Clearance Distance | |
| Comparative Tracking Index | |
| Creepage Distance | |
| Current | |
| Current - Supply (Max) | |
| Current Consumption | |
| Electrical Offset Voltage | |
| For Measuring | |
| Frequency | |
| Frequency Bandwidth | |
| Hysteresis Offset Voltage (Maximum @ @ IP = 0; after an excursion of 1 x IPN) | |
| Hysteresis Offset Voltage (Maximum @ @ IP = 0; after an excursion of 100 x IPN) | |
| Isolation Resistance | |
| Linearity | |
| Linearity Error | |
| Load Resistance | |
| Mass | |
| Mounting Type | |
| Number of Channels | |
| Operating Temperature | |
| Output | |
| Output Internal Resistance | |
| Output Voltage | |
| Polarization | |
| Primary Current (Nominal @ IPM) | |
| Response Time | |
| Response Time (Maximum @ to 80% of IPN step) | |
| Response Time (Maximum @ to 90% of IPN step) | |
| Sensor Type | |
| Standards | |
| Tape & Reel | |
| Temperature Coefficient of VOE | |
| Temperature Coefficient of VOUT | |
| Voltage | |
| Voltage Supply | |
| accuracy (Nominal) |
The LEM USA Inc. CT 0.4-P is a current transducer for the electronic measurement of small AC, DC, and mixed currents, providing galvanic isolation between the primary and secondary circuits. It is designed for PCB mounting and operates with a ±15V supply voltage, delivering a ±5V analog output at the nominal primary current (IPN).
Key electrical specifications include a primary current measuring range up to ±400 mA, a current consumption of ±45 mA, and an isolation resistance greater than 500 MΩ at 500 VDC. The sensor offers a linearity error of less than ±0.5% of IPN and an accuracy (excluding offset) of less than ±1% of IPN at 25°C. Its response time to an 80% IPN step is ≤ 20 ms, and to a 90% IPN step is ≤ 60 ms. The frequency bandwidth for the CT 0.4-P variant is DC to 18 kHz (-3 dB).
This current transducer operates within an ambient temperature range of -20°C to +85°C and has a storage temperature range of -25°C to +85°C. It features creepage and clearance distances greater than 5.5 mm and a comparative tracking index (CTI) greater than 220. The component has a mass of 25g and is compliant with EN 50178:1997 standards.
The CT 0.4-P is suitable for applications requiring DC and AC earth leakage current detection, such as in transformerless solar inverters, 1st human contact protection of PV arrays, and failure detection in power sources. Its compact size and cost-effectiveness make it an alternative to classical Residual Current Devices (RCDs).
| Qty | Low | High |
|---|---|---|
| 1+ | $1.50 | $1.50 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The primary nominal current (IPN) for the CT 0.4-P is ±400 mA, with a peak measuring range (IPM) of ±800 mA.
The CT 0.4-P requires a supply voltage of ±15V.
The output voltage (VOUT) is ±5 V at ±IPN, with a load resistance of 10 kΩ and an ambient temperature of 25°C.
The ambient operating temperature range is -20°C to +85°C.
The frequency bandwidth (-3 dB) for the CT 0.4-P is DC to 18000 Hz.
The response time to 80% of IPN step is ≤ 20 ms, and to 90% of IPN step is ≤ 60 ms.
The CT 0.4-P is listed as RoHS3 Compliant.