Plug on neutral. This Siemens Q120DFN circuit breaker is a reliable and high-quality supplementary protector for your electrical wiring. With a maximum amperage of 20A and voltage range of 101-150V, it is designed to prevent any electrical faults or shorts. The plug-on neutral feature and screw terminal electrical connexion make it easy to install and use. This circuit breaker has a multicolor design and is made of ABS/plastic and plastic materials. It has a switch and analog/mechanical control style, with 10 ports and a single pole. The Siemens Q120DFN circuit breaker is ideal for branch circuit applications and is a must-have for any electrical equipment and supplies.