Built for robust power distribution, the Siemens 3VA5170-4EC31-0AA0 is a 3-pole, 70A molded case circuit breaker built on the compact 3VA51 frame. It is designed to mount into Siemens P1, P2, and P3 panelboards, SB switchboards, and motor control centers, acting as a drop-in upgrade for ED63B070 units. This Class S breaker delivers 65 kAIC at 240V and features a TM230 thermal-magnetic trip unit with fixed thermal and adjustable magnetic protection. Note that lug connections are not included.
Siemens P1, P2, P3 Panelboards, SB Switchboards, Motor Control Centers
Protection and operation
Trip Technology
Thermal Magnetic
Trip Function Code
LI
Trip Function
Long-Time, Instantaneous
Trip Adjustability
Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options
Auxiliary Switch, Alarm Switch, Shunt Trip, Undervoltage Release, Motor Operator, Handle Lock, Padlock Attachment, DIN Rail Adapter, Busbar System
Accessories
None (Without connection)
Standards
IEC 60947-2, UL 489
Approval
CE, CSA, EAC, IEC, UL, VDE
Temp Rating
-25C to 70C
Construction Features
HACR Rated, Current Limiting, Reverse Feed
Product FAQs
7 answers
Which Siemens panelboards are compatible with the 3VA5170-4EC31-0AA0?
This breaker is designed to mount into Siemens P1, P2, and P3 panelboards, as well as SB switchboards and motor control centers.
What legacy Siemens circuit breaker does the 3VA5170-4EC31-0AA0 replace?
This 3VA51 frame breaker serves as a modern drop-in upgrade and replacement for the legacy ED63B070 circuit breaker.
What is the frame size for the 3VA5170-4EC31-0AA0?
This breaker is built on the compact Siemens 3VA51 frame, which has a maximum capacity of 125A.
What type of trip unit is included with the 3VA5170-4EC31-0AA0?
It is equipped with a TM230 thermal-magnetic trip unit that provides fixed thermal (long-time) and adjustable magnetic (instantaneous) protection.
Are 3VA5 thermal-magnetic breakers suitable for reverse feed applications?
Yes, Siemens 3VA5 thermal-magnetic circuit breakers are UL listed for reverse feed applications.
Can the 3VA5170-4EC31-0AA0 be applied on direct current (DC) systems?
Yes, this breaker is rated for use on DC systems up to 500VDC. When applying three-pole breakers on 500V ungrounded DC systems, the power supply must be connected in a zig-zag configuration through the breaker to ensure voltage is uniformly distributed.
What wire size do the standard lugs for the 3VA51 frame accept?
When equipped with standard 3VA9133-0JB11 lug kits, the 125A 3VA5 frame accepts 14 AWG to 3/0 AWG wire.
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Reviews
Review summary
Customers rate this product 4.8 out of 5 based on 8 reviews.