... to 160A, suitable for wide variety of applications. RSA series rotary switches are suitable for: on-off of electrical circuit, change ... circuit, motor switch, instrument switch, and main switch. RSA series rotary switches comply with: GB 14048.3, GB 14048.5, and IEC60947-5 ... -1. RSA series rotary switches have six current ratings: 20A, 25A, ...