Square D - QMB362TW Panelboard Switch 60/60A 600V 3P 3PH NEMA KS1 Fusible Twin New Old stock Item without the original box or packaging, You can tell that it has never been installed by looking at pics of the mounting holes. There are some scratches on the case exterior from being stored without the box. Free Shipping to the Continental US only The Square D QMB362TW Panelboard Switch is a circuit breaker with a maximum amperage of 60/60A and a voltage rating of 600V. This 3-pole, 3-phase switch is designed for use in industrial settings and features a NEMA KS1 Fusible Twin configuration. With the Square D brand reputation for quality and reliability, this panelboard switch is a dependable choice for controlling electrical circuits in a variety of commercial and industrial applications.