The Siemens 3VA9143-0JH12 is a SENTRON box terminal TS1.2 with control wire voltage tap-off, supplied as a set of three units. It's designed as an accessory for the 3VA6 150/250 molded case circuit breaker family — the voltage tap lets you pull a control signal directly off the load side without an extra terminal block.
Siemens 3VA9143-0JH12 SENTRON Box Terminal, 10 AWG–3/0 AWG
MPN3VA9143-0JH12
Active
Siemens SENTRON accessories, box terminal TS1.2 with voltage tap, 3 units, 10 AWG–3/0 AWG, 105–140 lb-in torque.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Product designation | accessories |
| Accessories | Box terminal |
| Parameter | Value |
|---|---|
| Solid | 10 AWG: 105 lb-in |
| Stranded | 10 - 4 AWG: 105 lb-in 3 - 3/0 AWG: 140 lb-in |
| Finely stranded | 10 - 4 AWG: 105 lb-in 3 - 3/0 AWG: 140 lb-in |
| Stripped length | 0.75 in |
| Design of the product | box terminal with voltage tap 3 items |
| Designation (Of the terminal) | TS1.2 |
| For copper cable (Solid, maximum) | 10 AWG |
| For copper cable (Solid, minimum) | 10 AWG |
| For copper cable (Stranded, maximum) | 3/0 AWG |
| For copper cable (Stranded, minimum) | 10 AWG |
| For copper cable (Finely stranded, maximum) | 3/0 AWG |
| For copper cable (Finely stranded, minimum) | 10 AWG |
| Type of electrical connection (With control wire tap) | Yes |
Product details
Frequently asked questions
What breakers does the 3VA9143-0JH12 fit?
It is designed as an accessory for the 3VA6 150/250 molded case circuit breaker frame. The voltage tap-off allows a control wire connection without a separate terminal block on the load side.
What torque values apply to the 3VA9143-0JH12 terminals?
Solid 10 AWG: 105 lb-in. Stranded and finely stranded 10–4 AWG: 105 lb-in; 3–3/0 AWG: 140 lb-in. Stripped length is 0.75 in.
Where can I buy the 3VA9143-0JH12?
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock figures or lead-time numbers on the page.
MPN
3VA9143-0JH12