53 Spec-Setter™ 3-Pole General-duty safety switch is rated at 240-Volt AC and 100-Amps. Non-fusible switch accommodates copper/aluminum conductors of size 10 - 1/0-AWG. It has maximum load capacity of 15 hp at 240-Volt AC and 20 hp at 250-Volt DC. It operates at the frequency rating of 50/60-Hz. It measures 15.5-Inch x 9.3-Inch x 5-Inch. Switch is suitable for using as service equipment when installed in accordance with the National Electrical Code. It involves quick-make and quick-break mechanism.