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Siemens 3VA9143-0JB11 — Circuit Breaker Accessories

Siemens 3VA9143-0JB11 SENTRON Wire Connector TA1.3, 14 AWG–1

MPN3VA9143-0JB11
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Siemens SENTRON TA1.3 circular conductor terminal, 3VA9143-0JB11, 3 units, for 14 AWG–1/0 AWG copper cable, 55–120 lb-in torque range.

Siemens 3VA9143-0JB11 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3VA9143-0JB11 — Identification
ParameterValue
Product designationaccessories
AccessoriesWire connector

Product details

The Siemens SENTRON 3VA9143-0JB11 is a TA1.3 circular conductor terminal — a wire connector sold as a three-unit pack for terminating copper cable on 3VA6 150/250 frame breakers. It accepts solid copper from 14 AWG up to 10 AWG, and stranded or finely stranded copper from 14 AWG up to 1/0 AWG. Strip length is 0.7 in. There is no integrated control wire tap.

This terminal is designed for the 3VA6 150/250 frame — not a general-purpose DIN-rail lug. It mounts directly on the breaker's line or load side, so panel layout is determined by the breaker position, not an independent terminal block.

Frequently asked questions

What wire sizes and torque settings does 3VA9143-0JB11 support?

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

MPN
3VA9143-0JB11