The Siemens 3VA1110-1AA32-0AA0 is a SENTRON switch disconnector in a 3-pole MCCB-style housing, rated for 100 A continuous at 40 °C through 70 °C — no derating needed across that band. It is a pure disconnecting means: no overload protection, no short-circuit protection, no trip unit. That makes it a straight disconnect for isolation or load-break duty where the upstream device handles the fault clearing. Mechanical life is 15,000 operating cycles typical. The main circuit connects via busbar connection with front terminals — no screw lugs, so plan for busbar stabs or fork-type adapters.

Siemens 3VA1110-1AA32-0AA0 SENTRON Switch Disconnector, 100
Siemens SENTRON switch disconnector, 3VA1 IEC frame 160, 3-pole, SD100, In=100 A, without overload or short-circuit protection, busbar connection, front terminal, IP40 front.
Specifications
| Parameter | Value |
|---|---|
| Product designation | Switch disconnector |
| Brand / range | SENTRON |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 100 A |
| Current at 45 °C | 100 A |
| Current at 50 °C | 100 A |
| Current at 55 °C | 100 A |
| Current at 60 °C | 100 A |
| Current at 65 °C | 100 A |
| Current at 70 °C | 100 A |
| Power loss, max. | 38 W |
| Parameter | Value |
|---|---|
| Main circuit connection type | busbar connection |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | No |
| Voltage trigger | No |
| Trip indicator | No |
| Motor drive option | Yes |
| Auxiliary CO contacts | 0 |
| Parameter | Value |
|---|---|
| Operating temperature, max. | 70 °C |
| Operating temperature, min. | -25 °C |
| Storage temperature, max. | 80 °C |
| Storage temperature, min. | -40 °C |
| Parameter | Value |
|---|---|
| Mechanical service life (operating cycles), typ. | 15 000 |
| Height | 130 mm |
| Width | 76.2 mm |
| Depth | 70 mm |
Product details
Frequently asked questions
Where can I buy 3VA1110-1AA32-0AA0?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What is the closest functional second-source for 3VA1110-1AA32-0AA0?
Within the same SENTRON 3VA1 frame 160 family, the 3VA1110-5ED36-0AA0 is a similar switch disconnector but includes a rotary handle and different terminal arrangement — verify panel cutout and busbar interface before substituting.
What are the key ratings of 3VA1110-1AA32-0AA0?
Continuous current 100 A across 40–70 °C, rated insulation voltage 800 V, AC operating voltage 690 V, DC operating voltage 500 V, mechanical life 15,000 cycles typical.