Knowledge Base › Current Transformers (CT)
Omron KM20-CTF-400A
Official manufacturer GLOBAL verified Sept. 25, 2026
Identity
| category | current_transformers |
| manufacturer | Omron |
| model | KM20-CTF-400A |
| product_status | active |
| region | GLOBAL |
| variant | — |
Electrical
| accuracy_class | Class 1.0 |
| altitude_max_m | 2,000 |
| aperture_mm |
35.5
KM50-E Smart Power Monitor / Specifications
|
| application_frequency |
10 Hz to 5 kHz
KM50-E Smart Power Monitor / Specifications
|
| bidirectional | True |
| compatible_meter_models |
['KM50-C1-FLK', 'KM50-E1-FLK']
KM50-C Smart Power Monitor / Lineup
|
| dielectric_strength_v | 2,000 VAC for 1 min (between output terminal and external case) |
| dielectric_strength_vac |
2000
KM50-E Smart Power Monitor / Specifications
|
| frequency_hz |
10 Hz to 5 kHz
KM50-E Smart Power Monitor / Specifications
|
| inner_diameter_mm |
35.5
KM50-E Smart Power Monitor / Specifications
|
| insulation_resistance | 50 MOhm min. (at 500 VDC, between output terminal and external case) |
| insulation_resistance_mohm |
50
KM50-E Smart Power Monitor / Specifications
|
| max_current_a | 400.0 |
| measurement_type | Current Transformer (CT) |
| official_product_url |
https://www.ia.omron.com/products/family/2714/specification.html
KM50-E Smart Power Monitor / Specifications — inventory record source_url
|
| operating_humidity_pct_rh | 25 to 85% RH (with no condensation) |
| operating_humidity_percent_rh |
25 to 85
KM50-E Smart Power Monitor / Specifications
|
| phase_count | 3 |
| primary_current_a |
400
KM50-E Smart Power Monitor / Specifications
|
| rated_voltage_v |
480
KM50-E Smart Power Monitor / Specifications
|
| secondary_output | 6,000 turns |
| secondary_winding_turns |
6000
KM50-E Smart Power Monitor / Specifications
|
| voltage_rating_v | 400.0 |
| window_diameter_mm | 35.5 |
Environment
| operating_temperature_max_c |
45
KM50-E Smart Power Monitor / Specifications
|
| operating_temperature_min_c |
-10
KM50-E Smart Power Monitor / Specifications
|
| operating_temperature_range_c | -10 to 45 |
| storage_temperature_range_c | -25 to 65 |
Documents
product_page
KM50-C Smart Power Monitor / Lineup
product_page
KM50-C Smart Power Monitor / Specifications
product_page
KM50-E Smart Power Monitor / Specifications
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| builder_completeness | partial |
| region_notes | OMRON's English-language industrial-automation catalogue (ia.omron.com) is the source; OMRON is a Japanese manufacturer and uses the same designation worldwide. |