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Siemens 3VA9143-0JK11 — Circuit Breaker Accessories

Siemens 3VA9143-0JK11 SENTRON Wire Connector TC1.3, 14 AWG–1

MPN3VA9143-0JK11
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Siemens SENTRON TC1.3 circular conductor terminal, order code 3VA9143-0JK11, for 14 AWG–1/0 Cu with control wire tap-off, 3 units per pack.

Siemens 3VA9143-0JK11 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3VA9143-0JK11 — Identification
ParameterValue
Product designationaccessories
AccessoriesWire connector
3VA9143-0JK11 — Other specifications
ParameterValue
Solid14 - 10 AWG: 55 lb-in
Stranded14 - 8 AWG: 55.0 lb-in 6 - 2 AWG: 75 lb-in 1 AWG - 1/0: 120 lb-in
Finely stranded14 - 8 AWG: 55.0 lb-in 6 - 2 AWG: 75 lb-in 1 AWG - 1/0: 120 lb-in
Stripped length0.7 in
Design of the productcircular conductor terminal
Designation (Of the terminal)TC1.3
For copper cable (Solid, maximum)10 AWG
For copper cable (Solid, minimum)14 AWG
For copper cable (Stranded, maximum)1/0 AWG
For copper cable (Stranded, minimum)14 AWG
For copper cable (Finely stranded, maximum)1/0 AWG
For copper cable (Finely stranded, minimum)14 AWG
Type of electrical connection (With control wire tap)Yes

Product details

The Siemens 3VA9143-0JK11 is a SENTRON TC1.3 circular conductor terminal — a wire connector with a control wire voltage tap-off, sold as a 3-unit pack. It is designed as an accessory for the 3VA6 150/250 molded-case circuit breaker frame. The terminal accepts solid, stranded, and finely stranded copper from 14 AWG minimum up to 1/0 AWG maximum across all three conductor types. That range covers most feeder and branch-circuit taps on the 3VA6 frame.

Panel Integration

This is a lug-style terminal that bolts onto the 3VA6 150/250 breaker line and load side. No DIN-rail mount — it lands on the breaker studs, so the panel fill factor is driven by the breaker footprint, not the terminal itself. The control wire tap-off saves a separate terminal block for a shunt trip or auxiliary contact feed.

Frequently asked questions

What wire sizes and torque settings does 3VA9143-0JK11 accept?

Solid copper 14–10 AWG at 55 lb-in; stranded and finely stranded 14–8 AWG at 55 lb-in, 6–2 AWG at 75 lb-in, and 1 AWG–1/0 at 120 lb-in. Strip length is 0.7 in.

MPN
3VA9143-0JK11