Knowledge Base › Current Transformers (CT)
LEM ARU-B100-D125
Official manufacturer GLOBAL verified Sept. 25, 2026
Identity
| category | current_transformers |
| manufacturer | LEM |
| model | ARU-B100-D125 |
| product_status | active |
| region | GLOBAL |
| variant | — |
Electrical
| accuracy_class |
0.5 (IEC 61869-10)
disputed
ARU series Rogowski coil data sheet (v4)
|
| accuracy_standard |
IEC 61869-10
ARU series Rogowski coil data sheet (v4)
|
| aperture_mm |
125
ARU series Rogowski coil data sheet (v4)
|
| bidirectional | True |
| cable_length_m |
1.5
ARU series Rogowski coil data sheet (v4)
|
| coil_inductance_uh |
1080
ARU series Rogowski coil data sheet (v4)
|
| coil_resistance_ohm |
113
ARU series Rogowski coil data sheet (v4)
|
| ct_type |
rogowski
disputed
ARU - Rogowski coil
|
| frequency_hz |
50/60
ARU series Rogowski coil data sheet (v4)
|
| max_current_a | 100.0 |
| max_secondary_voltage_v |
30
ARU series Rogowski coil data sheet (v4)
|
| measurement_category |
CAT III 1000 V PD2, CAT IV 600 V PD3
ARU series Rogowski coil data sheet (v4)
|
| measurement_type | Current Transformer (CT) |
| mutual_inductance_nh |
321.9
ARU series Rogowski coil data sheet (v4)
|
| output_cable_length_m |
1.5
ARU - Rogowski coil
|
| phase_count | 1 |
| phase_displacement_deg |
0.007
ARU series Rogowski coil data sheet (v4)
|
| primary_current_a |
1000
ARU - Rogowski coil
|
| rated_frequency_hz |
[50, 60]
ARU series Rogowski coil data sheet (v4)
|
| rated_insulation_voltage_v |
1000
ARU series Rogowski coil data sheet (v4)
|
| rated_short_time_thermal_current_ka |
20
ARU series Rogowski coil data sheet (v4)
|
| ratio |
10 kA/V @ 50 Hz
ARU series Rogowski coil data sheet (v4)
|
| ratio_error_percent_all_conductor_positions |
-1 to 1
ARU series Rogowski coil data sheet (v4)
|
| ratio_error_percent_conductor_centered |
-0.5 to 0.5
ARU series Rogowski coil data sheet (v4)
|
| saturation |
False
ARU series Rogowski coil data sheet (v4)
|
| secondary_voltage_mv |
100
ARU series Rogowski coil data sheet (v4)
|
| sensitivity_mv_per_ka_50hz |
100
ARU series Rogowski coil data sheet (v4)
|
| sensitivity_mv_per_ka_60hz |
120
ARU series Rogowski coil data sheet (v4)
|
| split_core |
True
ARU - Rogowski coil
|
| voltage_rating_v | 230.0 |
| weight_g |
236
ARU series Rogowski coil data sheet (v4)
|
Environment
| operating_temperature_max_c |
80
ARU series Rogowski coil data sheet (v4)
|
| operating_temperature_min_c |
-40
ARU series Rogowski coil data sheet (v4)
|
| storage_temperature_max_c |
80
ARU series Rogowski coil data sheet (v4)
|
| storage_temperature_min_c |
-40
ARU series Rogowski coil data sheet (v4)
|
Certifications
| standards |
['IEC 61010-1:2010/AMD1: 2016', 'IEC 61010-2-32: 2012', 'IEC 61869-10: 2017', 'UL: 61010-1: 2012']
ARU series Rogowski coil data sheet (v4)
|
Documents
datasheet
ARU series Rogowski coil data sheet (v4)
product_page
ARU - Rogowski coil
Recorded conflicts
electrical.accuracy_class Review required
0.5 (IEC 61869-10) — stored value
0.5 — Class 0.5 (IEC 61869-10)
Detected during import deep-enrich-2026-09-batch10
electrical.ct_type Review required
rogowski — stored value
Rogowski coil — The Rogowski coil can measure any primary current as there is no saturation effect.
Detected during import deep-enrich-2026-09-batch10
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| builder_completeness | partial |
| region_notes | One worldwide LEM data sheet; no regional electrical variants published. |