Built for overload and short-circuit protection, the Siemens 3VA5211-7EC31-0AA0 is a 110A, 3-pole molded case circuit breaker. Rated for 240VAC, 480VAC and 600VAC, it provides 100kAIC interrupting capacity at 480V. The 3VA5 frame mounts on DIN Rail with Feed-Thru terminals. Its thermal magnetic trip provides long-time and instantaneous protection, with fixed thermal and adjustable magnetic settings. Approvals include UL.
Alarm Switch, Auxiliary Switch, Motor Operator, Shunt Trip, Undervoltage Release
Standards
IEC 60947-2, UL 489
Approval
CE, CSA, UL, VDE
Temp Rating
-25C to 70C
Construction Features
HACR Rated
Product FAQs
8 answers
What does the 110A rating mean when selecting this breaker?
The Siemens 3VA5211-7EC31-0AA0 has a rated current of 110A. Use that rating when coordinating the breaker with the circuit load and conductor ampacity.
Which AC voltage ratings can I use for circuit selection?
The rated voltages are 240VAC, 480VAC and 600VAC. Select the breaker using the circuit's operating voltage, and evaluate interrupting capacity separately at that voltage.
How do I apply the 100kAIC interrupting rating at 480V?
At 480V, the interrupting rating is 100kAIC. Compare that rating with the available fault current at the installation point; the available fault current must not exceed the breaker's interrupting rating.
Is this a three-pole breaker for a three-phase circuit?
Yes. It is a three-pole, three-phase breaker, so selection should account for all three phase conductors passing through the breaker's protected poles.
How does the thermal-magnetic trip protect the circuit?
The thermal-magnetic trip provides long-time and instantaneous protection. The thermal element responds to sustained overloads, while the magnetic element responds rapidly to high fault currents.
Which trip settings can I adjust?
The thermal trip is fixed, while the magnetic trip is adjustable. Use magnetic adjustment to coordinate the instantaneous response with circuit requirements; the long-time thermal response is not an adjustable setting.
How should I plan the mounting layout?
This breaker uses DIN rail mounting. Plan the installation around a DIN rail, with space for the breaker body and conductor routing.
How much space should I allow for the breaker body?
The breaker measures 4.13 in wide, 4.92 in high and 6.89 in deep. Use those dimensions to plan its physical location, with additional space for wiring access and conductor routing.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 9 reviews.