Inverter control for smooth and precise operation. Supply Voltage: 380 V–460 V, 3 Phase, 50–60 Hz, Others upon request. Our Ex-DRS and Ex-RNE/RAE wheel block systems are certified to ATEX: II 2GD Ex c IIB T4 up to IIC T5 for use in hazardous area zones 1 and 2. Our wheel blocks offer outstanding benefits and solutions with minimum