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Open loop
| Primary Current, Measuring Range | −25 ... 25 A |
| Accuracy @ IPN | −0.7 ... 0.7 % of IPN |
| Operating Temperature Range | −40 ... 125 °C |
| Isolation Test Voltage | 2.5 kV |
| Primary Nominal RMS Current (IPN) | 10 ... 800 A |
| RMS Voltage for AC Insulation Test (50 Hz, 1 min) Ud | 2.5 kV |
Small drives, HVAC inverters, Appliances, Solar inverters, E-Bikes, Automotive & Industry qualified.
The GO 20-SME is an open loop current transducer from LEM for the electronic measurement of AC and DC currents, with galvanic isolation.
Typical applications include Small drives, HVAC inverters, Appliances and Solar inverters.
Key characteristics from the official datasheet: linearity error −0.3 ... 0.3 % of IPN; operating temperature −40 ... 125 °C.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | GO |
| Product Reference | GO 20-SME |
| Primary Nominal Current | 10 ... 800 A |
| Measurement | AC and DC currents |
| Mounting | — |
| Application Domain | — |
| Electrical Data — GO 20-SME | |
|---|---|
| Primary Nominal RMS Current (IPN) | 10 ... 800 A |
| Primary Current, Measuring Range (IPM) | −25 ... 25 A |
| Accuracy & Dynamic Performance | |
|---|---|
| Accuracy @ IPN | −0.7 ... 0.7 % of IPN |
| Linearity Error (εL) | −0.3 ... 0.3 % of IPN |
| Insulation Coordination | |
|---|---|
| RMS Voltage for AC Insulation Test (50 Hz, 1 min) Ud | 2.5 kV |
| Impulse Withstand Voltage (1.2/50 µs) UNi | 4 kV |
| Comparative Tracking Index (CTI) | 600 |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | −40 ... 125 °C |
| Ambient Storage Temperature (TA st) | −40 ... 150 °C |
| Mass (m) | 0.07 m |
| Standards & Certifications | |
|---|---|
| IEC 61800-5-1 | Compliance |
| IEC 62109-1 | Compliance |
| IEC 62368-1 | 2018 (supersedes IEC 60950-1: 2005) |
| UL 1577 | Compliance |
| UL 62368 | 2019. |
Note: Specifications are taken from the official GO 20-SME datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the GO 20-SME.
Outline dimensions, pin layout and connection diagrams of the GO 20-SME are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| Mass | 0.07 m |
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the GO 20-SME.
The characteristic curves of the GO 20-SME from the official datasheet are shown below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Accuracy @ IPN | −0.7 ... 0.7 % of IPN |
| Linearity Error (εL) | −0.3 ... 0.3 % of IPN |
Note: Refer to the datasheet for the complete set of characteristic curves.
Other models of the GO Series share the same measurement principle, mounting concept and output interface family.
