The 44L45-01-1-03N is a keylock rotary switch from Grayhill's Series 44L designed for high-current applications requiring secure key-based operation. This switch features a 5 Amp maximum switching current at 115 Vac resistive load, with a 45° angle of throw and non-shorting contact configuration. The switch is constructed with silver alloy contacts on the rotor and stator, brass terminals with silver plating, and stainless steel internal components including the shaft extension and keying washer. It offers 25,000 cycles of operation with an initial insulation resistance of 50,000 MO and breakdown voltage of 1,000 Vac between mutually insulated parts. The 44L45-01-1-03N is ideal for industrial control panels, security-critical applications, and equipment requiring tamper-resistant operation with reliable electrical switching performance.