Heavy industry, mining, cement, and steel plants punish equipment. NAHU outdoor instrument transformers are built to keep measuring through the dust, vibration, and heat.
For the harshest industrial environments, NAHU supplies outdoor CTs and VTs, cable accessories, and faulted circuit indicators — rugged metering that keeps plant engineers in control of every feeder and motor.
Outdoor and indoor CTs on large motor feeders measure starting currents and running load, so energy use per machine is always known. NAHU metering boxes protect the secondary circuit from plant contamination.
Instrument transformers and metering boxes in HV switchboards give plant engineers accurate per-feeder energy data for cost allocation across production lines. NAHU indoor CTs and VTs fit standard panel envelopes.
Faulted circuit indicators and protection windings cut fault-finding time and flag deteriorating circuits before they escalate. NAHU cable accessories keep terminations clean and safe at the switchboard.
Dust, vibration, humidity, and overloads are normal here. NAHU builds the outdoor and indoor metering hardware that keeps working in those conditions.
Outdoor and indoor CTs with high short-time withstand ratings for industrial feeders and motor circuits.
Sealed, epoxy-cast VTs that shrug off humidity, dust, and chemical atmospheres in industrial switchyards.
Enclosed combined metering units rated for industrial outdoor service with full secondary protection.