Square D 1S46F Buck Boost Transformer 1 Kva Nema 3R

Product Description

The SQUARE D 1S46F is a single-phase buck boost transformer rated at 1 kVA, designed to raise or lower line voltage in electrical distribution and power conditioning applications. It accepts 120 x 240 volts input and delivers 16/32 volts output at 60 Hz, making it suitable for fine voltage correction in commercial and light industrial systems. The enclosure carries a NEMA 3R rating, allowing installation in both indoor and outdoor environments where protection from rain and sleet is required. Licensed electricians and electrical contractors are the primary installers of this transformer. RoHS compliant construction meets applicable hazardous-substance restrictions.

The 1S46F is used in applications where small voltage adjustments are needed — typically to buck (reduce) or boost (raise) supply voltage to motors, HVAC equipment, lighting systems, and other single-phase loads. Its compact form factor and outdoor-rated enclosure make it practical for rooftop equipment installations, mechanical room panels, and exterior service equipment where voltage drop correction is a common field requirement.

Key Features

• 1 kVA power rating handles typical single-phase buck boost correction loads
• 120 x 240 volt input accommodates standard split-phase supply configurations
• 16/32 volt output windings provide flexible series or parallel boost/buck connections
• NEMA 3R rated enclosure suitable for indoor and outdoor installation
• Single-phase, 60 Hz operation matches standard North American power distribution
• RoHS compliant construction

Compatibility

Designed as an OEM-style replacement or direct-install single-phase buck boost transformer for voltage correction in residential, commercial, and light industrial electrical systems.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the supply circuit before making any wiring connections. Buck boost transformers require correct series or parallel winding configuration to achieve the intended voltage correction — verify the connection diagram for the desired input/output voltage before energizing. The NEMA 3R enclosure must be mounted with the conduit entry points oriented to prevent water intrusion.