Engineered for heavy-duty commercial and industrial applications, the Siemens SHMD69700ANT is a 3-pole, 700A molded case circuit breaker. It provides reliable overcurrent and short-circuit protection within the Sentron MD-Frame family. This breaker mounts into Siemens Sentron panelboards, switchboards, and motor control centers. For legacy replacements, it crosses to the 3VA6580-6HN32-0AA0 (adjustable trip set to 700A), which requires a retrofit kit for older Sentron enclosures.
What is the modern replacement for the SHMD69700ANT circuit breaker?
For legacy upgrades, the SHMD69700ANT crosses to the newer Siemens 3VA6580-6HN32-0AA0. When installing the 3VA replacement into older Sentron panelboards or switchboards, a specific retrofit kit is required.
What does the ANT suffix indicate on this Siemens Sentron breaker?
The ANT suffix designates that the breaker features a Sensitrip III electronic trip unit configured with LSI (Long-Time, Short-Time, and Instantaneous) protective functions.
How are the LSI trip settings adjusted on the SHMD69700ANT?
The electronic trip unit features rotary dials on the face of the breaker. These dials must be set to mechanical detent (click-stop) positions to properly configure the Long-Time, Short-Time, and Instantaneous pickup and delay settings.
What types of equipment is the SHMD69700ANT compatible with?
This MD frame breaker is designed for unit-mount installation in Siemens Sentron panelboards, switchboards, and motor control centers.
What wire sizes are accepted by the lugs on this 700A breaker?
The included line and load lugs accept three 1/0 AWG to 500 kcmil copper or aluminum conductors per phase.
Does the SHMD69700ANT provide ground fault protection?
No. This breaker features an LSI (Long-Time, Short-Time, Instantaneous) trip unit. For ground fault protection, a breaker with an LSIG trip unit, typically denoted by an ANGT catalog suffix, is required.
What precautions should be taken before adjusting the electronic trip unit dials?
Always de-energize the equipment before making adjustments. Ensure the rotary dials are set exactly to the detent positions, as resting between settings can cause nuisance tripping or improper overcurrent protection.
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