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Knowledge Base › Current Transformers (CT)

Official manufacturer GLOBAL verified Sept. 25, 2026

Identity

category current_transformers
manufacturer Omron
model KM-NCT-E500A
product_status active
region GLOBAL
variant —

Electrical

accuracy_class Class 1.0
applicable_standards ['EN61010-1', 'EN61010-2-030', 'EN61326-1']
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
bidirectional True
burden_va 1
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
compatible_meter_models ['KM-N2-FLK', 'KM-N3-FLK']
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
conductor_size_mm 36
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
ct_type split_core
KM-N3-FLK Power Monitor / Lineup
dielectric_strength 2300 VAC, 1 minute between core and all output terminals
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
dielectric_strength_vac 2300
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
frequency_hz 50/60
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
insulation_resistance 100 MΩ min. (at 500 VDC mega)
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
insulation_resistance_mohm 100
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
max_current_a 500.0
max_wire_diameter_mm 36
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
measurement_type Current Transformer (CT)
operating_humidity 85% max. with no condensation
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
phase_count 1
primary_current_a 500
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
rated_burden_va 1
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
secondary_current_a 1
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
voltage_rating_v 230.0
weight_g 290
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)

Physical / mechanical

weight_kg 0.29
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)

Environment

operating_temperature_max_c 55
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
operating_temperature_min_c -20
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
storage_temperature_max_c 90
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
storage_temperature_min_c -30
OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)

Documents

datasheet OMRON Power Monitor KM-N2 / KM-N3 catalogue (N213-E1-10)
product_page KM-N2-FLK Smart Power Monitor / Specifications
product_page KM-N3-FLK Power Monitor / Lineup

Additional documented parameters

Recorded verbatim from the source; no schema field exists for these yet.

builder_completenesspartial
region_notesOMRON's English-language industrial-automation catalogue (ia.omron.com) is the source; OMRON is a Japanese manufacturer and uses the same designation worldwide.