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Open loop multi-range current transducer
| Primary Current, Measuring Range | −625 ... 625 A |
| Reference Voltage (output) | 1.63 ... 1.67 V |
| Electrical Offset Voltage | −5 ... 5 mV |
| Response Time @ 90 % of IPN | 3.5 µs |
| Isolation Test Voltage | 4.3 kV |
| Operating Temperature Range | −40 ... 105 °C |
UNVERIFIED.
The HO 250-S/SP33-1106 is an open loop current transducer from LEM for the electronic measurement of current: DC, AC, pulsed..., with galvanic isolation, delivering an instantaneous output voltage of −1.15 ... 1.15 V.
Typical applications include UNVERIFIED.
Key characteristics from the official datasheet: linearity error ± 0.75 %; frequency bandwidth 100 kHz; operating temperature −40 … 105 °C.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | HO |
| Product Reference | HO 250-S/SP33-1106 |
| Primary Nominal Current | 250 A |
| Supply Voltage | 3.14 ... 3.46 V |
| Measurement | current: DC, AC, pulsed... |
| Mounting | Panel Mount |
| Application Domain | Industrial |
| Electrical Data — HO 250-S/SP33-1106 | |
|---|---|
| Primary Nominal RMS Current (IPN) | 250 A |
| Primary Current, Measuring Range (IPM) | −625 ... 625 A |
| Number of Primary Turns (NP) | 1 |
| Supply Voltage (UC) | 3.14 ... 3.46 V |
| Current Consumption (IC) | 19 ... 25 mA |
| Reference Voltage (output) (Vref) | 1.63 ... 1.67 V |
| Reference Voltage (input) (Vref) | 0.5 ... 1.7 V |
| Output Voltage Range @ IPM (Vout − Vref) | −1.15 ... 1.15 V |
| Vref Output Resistance (Rref) | 130 ... 300 Ω |
| Vout Output Resistance (Rout) | 2 ... 5 Ω |
| Allowed Capacitive Load (CL) | 0 ... 6 nF |
| OCD Output On Resistance (Ron) | 70 ... 150 Ω |
| OCD Detection Hold Time (thold) | 0.7 ... 1.4 ms |
| EEPROM Control (Vout) | 0 ... 50 mV |
| Electrical Offset Voltage @ IP = 0 A (VO E) | −5 ... 5 mV |
| Electrical Offset Current referred to primary (IO E) | −2.7174 ... 2.7174 A |
| Theoretical Sensitivity (Gth) | 1.84 mV/A |
| Accuracy & Dynamic Performance | |
|---|---|
| Accuracy @ IPN | −1 ... 1 % of IPN |
| Accuracy @ IPN @ TA = +85 °C | −4.08 ... 4.08 % of IPN |
| Accuracy @ IPN @ TA = +105 °C | −5.10 ... 5.10 % of IPN |
| Sensitivity Error @ IPN (εG) | −0.5 ... 0.5 % |
| Temperature Coefficient of G (TCG) | −350 ... 350 ppm/K |
| Linearity Error 0 .. IPN (εL) | −0.5 ... 0.5 % of IPN |
| Linearity Error 0 .. IPM (εL) | −0.5 ... 0.5 % of IPM |
| Temperature Coefficient of Vref (TCVref) | −170 ... 170 ppm/K |
| Temperature Coefficient of VO E (TCVOE) | −0.075 ... 0.075 mV/K |
| Temperature Coefficient of IO E (TCIOE) | −40.76 ... 40.76 mA/K |
| Magnetic Offset Current @ 10 × IPN (IOM) | −0.92 ... 0.92 A |
| Reaction Time @ 10 % of IPN (tra) | 2.5 µs |
| Response Time @ 90 % of IPN (tr) | 3.5 µs |
| Frequency Bandwidth (-3 dB) (BW) | 100 kHz |
| Primary Current Detection Threshold (OCD, peak) | 2.63 ... 3.21 × IPN (peak) |
| Insulation Coordination | |
|---|---|
| RMS Voltage for AC Insulation Test (50 Hz, 1 min) Ud | 4.3 kV |
| Impulse Withstand Voltage (1.2/50 µs) UNi | 8 kV |
| Partial Discharge Test Voltage (q < 10 pC) Um t | 1500 V |
| Creepage Distance (dCp) | > 8 mm |
| Clearance (dCI) | > 8 mm |
| Case Material | V0 according to UL 94 |
| Comparative Tracking Index (CTI) | 600 |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | −40 ... 105 °C |
| Ambient Storage Temperature (TA st) | −40 ... 105 °C |
| Mass (m) | 32 g |
| Standards & Certifications | |
|---|---|
| IEC 61800-3 | 2004 |
| IEC 61800-5-1 | 2007 |
| IEC 61800-1 | 1997 |
| IEC 61800-2 | 2015 |
| UL 508 | 2013 |
Note: Specifications are taken from the official HO 250-S/SP33-1106 datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the HO 250-S/SP33-1106.
Outline dimensions, pin layout and connection diagrams of the HO 250-S/SP33-1106 are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| Mass | 32 g |
| Case Material | V0 according to UL 94 |
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the HO 250-S/SP33-1106.
The characteristic curves of the HO 250-S/SP33-1106 from the official datasheet are shown below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Theoretical Sensitivity (Gth) | 1.84 mV/A |
| Accuracy @ IPN | −1 ... 1 % of IPN |
| Accuracy @ IPN @ TA = +85 °C | −4.08 ... 4.08 % of IPN |
| Accuracy @ IPN @ TA = +105 °C | −5.10 ... 5.10 % of IPN |
| Sensitivity Error @ IPN (εG) | −0.5 ... 0.5 % |
| Temperature Coefficient of G (TCG) | −350 ... 350 ppm/K |
| Linearity Error 0 .. IPN (εL) | −0.5 ... 0.5 % of IPN |
| Linearity Error 0 .. IPM (εL) | −0.5 ... 0.5 % of IPM |
| Temperature Coefficient of Vref (TCVref) | −170 ... 170 ppm/K |
Note: Refer to the datasheet for the complete set of characteristic curves.
Other models of the HO Series share the same measurement principle, mounting concept and output interface family.
