3VA2716-1AB12-4HA7 SIEMENS

The 3VA2716-1AB12-4HA7 is a robust, fixed-mounted molded case circuit breaker designed for reliable circuit protection. This 4-pole breaker, part of the frame 1600 series, features an Electronic Trip Unit (ETU320) with LI (Long-Time and Instantaneous) protection functions. The rated current (In) is 1600A, adjustable via a rotary coding switch within a range of 640A to 1600A for optimal customization. The instantaneous tripping current (Ii) can be set from 1.5 to 15 times the rated current. It includes adjustable neutral conductor protection (OFF, 50%, 100%, 200%) to safeguard against imbalances. Equipped with a motorized operating mechanism (220...250 V AC/DC) and a spring energy store signaling switch (S21), it ensures dependable operation. The breaker has an Icu (Ultimate Breaking Capacity) of 55kA at 415V, signifying its ability to handle substantial fault currents. Additional features include RTC (Ready-to-Close) functionality, 4 auxiliary trip alarm switches (S24), electrical and mechanical 'calling' features, a switch-on solenoid (CC) operating at 220-240 V AC/DC, and shunt trip release (ST) also at 220-240 V AC/DC. This model is designed with rear horizontal connections for simplified installation and does not include communication or measurement capabilities.