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The NSI INDUSTRIES VM-A-36 is a voltage marker designed for clearly identifying electrical conductors, panels, and equipment rated in the 20-volt to 280-volt range. Voltage markers provide a fast, durable labeling solution that helps electricians and maintenance technicians communicate hazard levels at a glance. The VM-A-36 is applied directly to conduit, wire bundles, junction boxes, or panel components to indicate operating voltage. Proper voltage identification is a standard practice in commercial and industrial electrical work and supports compliance with NEC labeling requirements.
This marker is suited for use in residential, commercial, and light industrial electrical installations where conductors or equipment operate in the 20-volt to 280-volt range. Electricians use voltage markers during new construction, panel upgrades, and service work to permanently identify live circuits and reduce hazard exposure during future maintenance. The VM-A-36 is a practical consumable stocked on most service vehicles alongside tape, wire connectors, and labeling supplies.
Designed as an OEM-style voltage marker for general electrical labeling applications on conductors and equipment operating between 20 volts and 280 volts.
Voltage markers are applied by licensed electricians or qualified maintenance technicians. Always de-energize and lock out or tag out circuits before working on panels, junction boxes, or conductor terminations. Apply the marker to a clean, dry surface for best adhesion and readability. Follow applicable NEC and local code requirements for circuit identification and labeling.
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