CTS 212 Rotary Switches are equipped with a hill and valley detent, a balanced double bump detent spring, excellent feel, 30˚ or 60˚ indexing options, spring return styles, adjustable stop options, solder lug and printed circuit terminals, a molded stator to prevent solder from flowing into the circuit, custom switching patterns, and separate index or wafer options.
The CTS 212 rotary switches provide selectable indexing options (30° or 60°, with special 90° variants) and a range of terminal styles such as solder‑lug and printed‑circuit. Electrical ratings include UL‑approved 3/4 A at 125 VAC and special ratings up to 1 A at 28 VDC, with a maximum contact resistance of 15 mΩ.
Mechanical features include aluminum or unplated brass shafts, glass‑reinforced thermoset stator insulators, and a detent life of 25,000 cycles. Physical dimensions are provided for various mounting styles, and ordering information lists available terminal and shaft‑trim options.
| Indexing options | 30° or 60° (special 90° available) |
|---|---|
| UL voltage/current rating | 3/4 A at 125 VAC (shorting type only) |
| Special voltage/current rating | 1 A at 28 VDC (shorting type only) |
| Contact resistance | 15 mΩ max |
| Stop strength | 15 in‑lb (17.3 kgf‑cm) |
| Torque | Up to 48 in‑oz (3.5 kgf‑cm) |
| Detent rotational life | 25,000 cycles |
| Shaft material | Aluminum or unplated brass |
The switches can be ordered with 30° or 60° indexing, and a special 90° indexing is also offered.
The series is UL‑rated for 3/4 A at 125 VAC (shorting type) and has special ratings of 1/4 A at 28 VDC and 1 A at 28 VDC.
The contact resistance is specified as a maximum of 15 mΩ.