Siemens 3TL6113-0AG2

The Siemens 3TL6113-0AG2 is a high-voltage vacuum contactor rated at 450A and 7.2 kV, designed for industrial medium-voltage switchgear applications. Featuring a central terminal strip and a 4NO+3NC configuration, this contactor is engineered for reliable performance in demanding environments.

Construction and Operation
Utilizing advanced vacuum interrupters, the 3TL6113-0AG2 ensures efficient arc-quenching, supporting high switching rates of up to 1 million electrical cycles or 3 million mechanical cycles. The electromagnetic operating mechanism, combined with an integral rocker or drive lever, provides dependable operation. A mechanical closing latch maintains the contactor in the closed position without continuous power, enhancing energy efficiency.

Safety and Protection
While the contactor is not designed to switch short-circuit currents, it requires high-voltage HRC fuses or circuit breakers for short-circuit protection. Minimal current chopping (≤5 A) and optional surge limiters (SIOV and spark gaps) help prevent overvoltages when switching accelerated motors.

Installation and Applications
The 3TL6113-0AG2 can be installed in vertical or horizontal positions, accommodating site-specific requirements. It supports standard altitude adjustments from –200 m to +1250 m above sea level, with further adjustments possible using rear-position adjusters. This contactor is ideal for motor control, transformers, reactors, capacitors, resistive loads, and various industrial systems such...