GRS-4121 Miniature Rocker Switch CW Industries GRS-4121 Miniature Rocker Switch is a power switch rated at 8A/250VAC. This switch is VDE approved for use in products sold in Europe that offer contact gaps greater than 3mm. GRS-4121 is ideal for applications in the appliance, lawn and garden, floor care, and medical markets. Compliance with the +850°C Glow-Wire Test for insulating material makes the switch suitable for applications requiring higher heat resistance.