The CTS 212 Rotary Switch features a balanced double bump detent spring and excellent feel. This product provides 30˚, 60˚ or 90˚ indexing and is available in spring return styles with an adjustable stop. It also provides solder lug and printed circuit terminals, a molded stator that prevents solder from flowing into the circuit, and custom switching patterns.
The CTS 212 Series datasheet provides detailed electrical and mechanical specifications for the switch, including indexing options, voltage and current ratings, contact resistance, torque, and detent life. It also lists material options for the shaft, bushing, spring, and other components, as well as lubrication and mounting details.
Additional sections cover physical dimensions, available terminal styles, and ordering information with contact addresses for CTS Corporation in the United States and Taiwan.
| Voltage rating (UL) | ¼ A at 125 VAC (shorting type only) |
|---|---|
| Current rating (special) | ¼ A at 28 VDC (shorting or non‑shorting) |
| Current rating (shorting) | 1 A at 28 VDC |
| Contact resistance | 0.008 – 0.010 Ω |
| Stop strength | 15 lb (17.3 kg‑cm) |
| Torque | Up to 48 oz‑in (3.5 kg‑cm) |
| Detent rotational life | 25,000 cycles |
| Shaft material | Aluminum or unplated brass (CTS option) |
| Bushing material | Brass |
| Lubrication | Special lubrication for the life of the index assembly |
The UL rating is ¼ A at 125 VAC for shorting type only.
30° indexing provides 2 through 12 positions.
Contact resistance is between 0.008 and 0.010 Ω measured from adjacent terminals.
Shafts are available in aluminum or unplated brass as a CTS option.