Designed for comprehensive system protection, the Siemens SHND69120ANGT is a 3-pole, 1200A molded case circuit breaker from the Sentron ND frame family. It mounts into Siemens P5 panelboards, S5 power panels, and Sentron switchboards. Rated at 65 kAIC at 480VAC, this unit-mount breaker is equipped with a microprocessor-based electronic trip unit featuring adjustable Long-Time, Short-Time, Instantaneous, and Ground Fault (LSIG) settings for maximum coordination and safety.
High Interrupting Capacity, HACR Rated, Reverse Feed
Product FAQs
6 answers
What equipment is the Siemens SHND69120ANGT compatible with?
This 1200A ND-frame breaker is designed for use in Siemens P5 panelboards, S5 power panels, and Sentron switchboards.
What wire sizes do the included lugs accept?
The factory lugs on this breaker accept four 250 to 500 kcmil aluminum or copper conductors per phase.
What does the "ANGT" suffix indicate in the SHND69120ANGT catalog number?
The "ANGT" suffix designates an advanced Sensitrip electronic trip unit with LSIG functions, providing adjustable protection for Long-Time, Short-Time, Instantaneous, and Ground Fault conditions.
Does the ground fault function require external components for a 4-wire system?
Yes. While the breaker includes ground fault protection for 3-phase, 3-wire circuits, installing it in a 3-phase, 4-wire system requires a separate neutral current transformer to properly monitor the fourth wire.
What is the difference between the SND6 and SHND6 frame types?
The "H" in the SHND6 prefix designates a high-interrupting rating of 65kAIC at 480V, whereas the standard SND6 frame has a lower interrupting capacity. Both share the same physical dimensions for direct replacement in Sentron gear.
Is the SHND69120ANGT suitable for reverse feed applications?
Yes, Siemens SHND6 solid state circuit breakers are UL Listed for reverse connection applications, allowing them to be back-fed if required by the system design.
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