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Current Transducer
| Operating Temperature Range | −40 ... 85 °C |
| Ambient Operating Temperature (TA) | −40 ... 85 °C |
| Ambient Storage Temperature (TA st) | −45 ... 90 °C |
| Mass (m) | 760 g |
| General Tolerance | ±1 mm |
| Primary conductor temperature (T) | ≤ 100 °C |
Single or three phase inverters, Propulsion and braking choppers, Propulsion converters, Auxiliary converters, Battery chargers. Application Domain, Railway (fixed installations and onboard). Page 1/3 Route du Nant-d’Avril, 152 www.lem.com
The RA 1005-S is a None current transducer from LEM.
Typical applications include Single or three phase inverters, Propulsion and braking choppers, Propulsion converters and Auxiliary converters.
Key characteristics from the official datasheet: operating temperature −40 ... 85 °C.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | RA |
| Product Reference | RA 1005-S |
| Measurement | — |
| Mounting | Busbar Mount |
| Application Domain | Railway (fixed installations and onboard) |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | −40 ... 85 °C |
| Ambient Storage Temperature (TA st) | −45 ... 90 °C |
| Mass (m) | 760 g |
| General Tolerance | ±1 mm |
| Ambient operating temperature (T) | −40 ... 85 °C |
| Ambient storage temperature (T) | −45 ... 90 °C |
| Primary conductor temperature (T) | ≤ 100 °C |
| Resistance of secondary winding @ T (R) | = 85 °C |
| EN 50121-3-2: | 2015 |
| Standards & Certifications | |
|---|---|
| EN 50155 | Compliance |
| EN 50121-3-2 | Compliance |
| Standards EN 50155: | 2007 |
| Electrical Data | |
|---|---|
| Inductance of secondary windings (±3 %) (L) | 5.9 mH |
| Number of secondary turns (N) | 1480 |
| Accuracy & Dynamic Performance | |
|---|---|
| BW Frequency bandwith | 20 ... 3000 Hz |
| T.100 Thermal drift of M T | = −40 ... + 85 °C < ±0.3 % |
| Inductance of secondary winding (±4 %) (L) | 6 mH |
| Number of turns (test winding) (N) | 1440 |
| Test current (I) | < 40 mA |
| Insulation Coordination | |
|---|---|
| Creepage distance (d) | 82.70 mm |
| Clearance (d) | 69.60 mm |
| CTI Comparative Tracking Index (group I) | 600 |
Note: Specifications are taken from the official RA 1005-S datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the RA 1005-S.
Outline dimensions, pin layout and connection diagrams of the RA 1005-S are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| General Tolerance | ±1 mm |
| Mass | 760 g |
| Resistance of secondary winding @ T (R) | = 85 °C |
| Inductance of secondary windings (±3 %) (L) | 5.9 mH |
| Inductance of secondary winding (±4 %) (L) | 6 mH |
| Number of turns (test winding) (N) | 1440 |
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the RA 1005-S.
Characteristic curve diagrams are not included in the RA 1005-S datasheet; the relevant characteristics are the accuracy and dynamic performance data listed below.
Note: For the full set of performance data, refer to the datasheet.
Other models of the RA Series share the same measurement principle, mounting concept and output interface family.
