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3VA9673-0JJ34
Siemens 3VA9673-0JJ34 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
Siemens 3VA9673-0JJ34 is a SENTRON circular conductor terminal (TA4.2) designed for external connection of up to three power cables to compatible Siemens 3VA55 and 3VA65/3VA66 circuit breaker platforms. Supplied as a set of three terminals, it supports high-current stranded conductors in copper or aluminium, with IEC conductor ranges from 240 to 300 mm² and UL ranges from 500 to 750 kcmil (including finely stranded copper up to 500 kcmil). The terminal is specified for 90 °C conductors under UL 486A-486B and provides defined stripping lengths and tightening torque values to help achieve a consistent, secure cable termination in switchboards and industrial power distribution assemblies.
What does this circular conductor terminal do?
It is an external wire-connection accessory designed to terminate and connect up to three large power cables to compatible SENTRON 3VA circuit breakers, providing a secure, high-current connection point.
Which circuit breaker ranges is it intended to fit?
It is intended as an accessory for SENTRON 3VA55 and 3VA65/3VA66 breaker frames, where an external circular conductor terminal is required.
How many cables can be connected with one terminal set?
This terminal design is for three cables (3-cable connection). The supplied sales unit is a set of three terminals.
What conductor sizes are supported under IEC sizing?
For stranded copper or stranded aluminium conductors, it supports 240 mm² to 300 mm² (IEC conductor sizing).
What conductor sizes are supported under UL sizing?
For stranded copper or stranded aluminium conductors, it supports 500 kcmil to 750 kcmil. For finely stranded copper, it supports 500 kcmil.
Can it be used with both copper and aluminium cables?
Yes. It is specified for both copper and aluminium stranded conductors within the stated cross-section ranges, following the applicable connection standard (IEC or UL).
Is finely stranded cable supported?
Yes. Finely stranded copper is supported at 240 mm² (IEC) and at 500 kcmil (UL), using the specified tightening torque.
What tightening torque should be used for the connection?
For copper cables: 42.4 Nm for 240–300 mm² stranded (and 240 mm² finely stranded) under IEC practice; and 375 lb-in for 500–750 kcmil stranded (and 500 kcmil finely stranded) under UL practice. Always apply torque using a suitable calibrated tool and the equipment’s installation instructions.
What stripped length is required for the conductors?
The specified stripped lengths are 28.7 / 42.9 / 58.4 mm. The UL-format equivalents are 1.13 / 1.69 / 2.3 in, depending on the connection arrangement used.
Does it include a control wire tap point?
No. This terminal type is specified without a control wire tap.
What conductor temperature rating is permitted under UL?
Under UL 486A-486B, the permissible temperature rating for the connectable conductor is 90 °C.
What is the terminal designation used for this accessory?
The terminal designation is TA4.2. This designation is often used to confirm the correct terminal style when matching accessories to a breaker configuration (for example, Siemens 3VA9673-0JJ34 corresponds to TA4.2).
- Connecting three large copper conductors to a SENTRON 3VA55 moulded-case circuit breaker terminal set
- Terminating three large aluminium conductors onto SENTRON 3VA65/3VA66 circuit breaker connections in low-voltage switchboards
- Upgrading breaker terminations when moving to higher-current feeders requiring 500–750 kcmil cable accommodation
- Building parallel-cable incomers (three cables per phase as permitted by the terminal arrangement) for compact panel layouts
- Providing secure external cable entry/termination for heavy-gauge stranded power cables in industrial distribution panels
- Standardising cable termination hardware across multi-feeder assemblies using the TA4.2 conductor terminal format
- Supporting retrofit work where existing large conductors need to be re-terminated onto a 3VA-series breaker with the correct lug/terminal accessory
- Enabling consistent, torque-controlled terminations for high cross-section conductors to reduce rework during panel assembly
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
2 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
2 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
2 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
3 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
4 months ago
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