Slip rings
Servotecnica SVTS B (B 01-B 04)
Compact slip rings with Faston terminals for low circuit counts, offering power rings up to 20 A and long life.
Key specifications
| Circuits (max) | 8 |
|---|---|
| Current per circuit (max) | 20 A |
| Voltage (max) | 400 V |
| Speed (max) | 400 rpm |
| Outer diameter | 32–77 mm |
| Ingress protection | IP51 std; IP65 option |
| Temperature | -20–80 °C |
| Rated life (revolutions) | 100,000,000 |
Summarised in our own words from Servotecnica SpA's published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1 · Source 2
Notes on this data
B 01 32 mm, B 02 45 mm, B 03 77 mm, B 04 70 mm (B 01 table also shows 16-20 mm). Power 14/20 A at 400 V; signals 2/5 A at 240 V. Suits thermocouple signals.
Specify Motion is not affiliated with Servotecnica SpA. Servotecnica and SVTS B (B 01-B 04) are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with a Servotecnica part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 3 series from our supply network are the closest match on published figures.
High-circuit-count slip rings that carry hundreds of mixed power, digital, analogue, fibre and RF channels in one unit.
| Published maximum | SVTS B (B 01-B 04) | Multi-channel Slip Ring |
|---|---|---|
| Circuits | 8 | 500 meets or exceeds |
| Current per circuit | 20 A | 30 A meets or exceeds |
| Speed | 400 rpm | 480 rpm meets or exceeds |
| Voltage | 400 V | 700 V meets or exceeds |
| Bore | — | 40 mm |
Slip rings using heat-resistant materials for extreme temperatures from -55°C to +250°C, such as hot rollers and heating plant.
| Published maximum | SVTS B (B 01-B 04) | High & Low Temperature Slip Ring |
|---|---|---|
| Circuits | 8 | 48 meets or exceeds |
| Current per circuit | 20 A | 50 A meets or exceeds |
| Speed | 400 rpm | — |
| Voltage | 400 V | 500 V meets or exceeds |
| Bore | — | 88 mm |
A small analogue power-and-signal slip ring with FASTON quick-connect terminals for fast wiring in dusty, high-cycle machinery. Optional IP65 sealing.
| Published maximum | SVTS B (B 01-B 04) | HR Series Faston Type Slip Ring |
|---|---|---|
| Circuits | 8 | 8 meets or exceeds |
| Current per circuit | 20 A | — |
| Speed | 400 rpm | — |
| Voltage | 400 V | — |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Other slip rings series
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