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The 3M SDR-S is a wire marker tape designed for labeling and identifying wiring in electrical, HVAC, and low-voltage control systems. Wire marker tape is applied directly to conductors, wire bundles, or terminal leads to provide clear, durable identification that survives the demands of a field installation. Electricians and HVAC technicians use this type of product during panel wiring, equipment installation, and service work where accurate circuit tracing is critical. The SDR-S format is suited for environments where organized, legible wire identification is required for both initial install and future service access.
Wire marker tape of this type is used in residential and commercial electrical panels, control wiring for HVAC equipment, low-voltage thermostat and DDC circuits, and general electrical rough-in and trim-out work. It is commonly applied by licensed electricians and HVAC controls technicians wherever wire identification is required by code or by best-practice wiring standards.
Designed as an OEM-style wire identification solution for use in electrical and HVAC control wiring installations where durable, legible wire marking is required.
Wire marker tape is applied by electricians and HVAC technicians as part of standard wiring and labeling procedures. De-energize all circuits before accessing wiring or applying markers inside panels or enclosures. Follow applicable NEC requirements for circuit identification and marking. Ensure the marker surface is clean and dry before application for proper adhesion.
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