Electrical installation 60020257319_02 Hydraulic station Installation and maintenance instructions 29▶ Ensure that the mains voltage is in thepermissible range.123456L1L1L2L3NX300X310X31121L1N3412NLNL1. Install a separate type B residual-current circuit breakerfor the product.2. Note the specifications on the sticker on the electronicsbox.3. Use a 3-pole power supply cable with a conductorcross-section of 4 mm2and a temperature resistance of90 °C.4. Remove the cable jacket until there is only 30 mm left.5. Connect the power supply cable to L1, N, PE, asshown.6. Use the strain relief clamp to secure the cable in place.7. Observe the instructions on connecting a dual-tariffsupply; see (→ Page 30).6.3.2 1~/230V dual power supplyCaution.Risk of material damage due to high con-nected voltage.With excessive mains voltages, electroniccomponents may be damaged.▶ Ensure that the mains voltage is in thepermissible range.123456L1L1L2L3NX300X310X31121L1N3412NLNLNL1. Install a separate type B residual-current circuit breakerfor the product.2. Note the specifications on the sticker on the electronicsbox.3. Use a 3-pole power supply cable (low tariff) with a con-ductor cross-section of 4 mm2and a temperature resist-ance of 90 °C. Use a 3-pole power supply cable (hightariff) with a conductor cross-section of 0.75 mm2and atemperature resistance of 90 °C.4. Remove the cable jacket until there is only 30 mm left.5. Connect the power supply cable, as shown.6. Use the strain relief clamp to secure the cable in place.7. Observe the instructions on connecting a dual-tariffsupply; see (→ Page 30).6.3.3 3~/400V single power supplyCaution.Risk of material damage due to high con-nected voltage.With excessive mains voltages, electroniccomponents may be damaged.▶ Ensure that the mains voltage is in thepermissible range.123456L1L1L2L3NL1L2L3NX300X310X31121L1N3412NLL1. Install a separate type B residual-current circuit breakerfor the product.2. Note the specifications on the sticker on the electronicsbox.3. Use a 5-pole power supply cable with a conductorcross-section of 2.5 mm2and a temperature resistanceof 90 °C.4. Remove the cable jacket until there is only 70 mm left.5. Remove the jumper from between connections L1 andL2.6. Connect the power supply cable to L1, L2, L3, N, PE,as shown.7. Observe the instructions on connecting a dual-tariffsupply; see (→ Page 30).6.3.4 3~/400V dual power supplyCaution.Risk of material damage due to high con-nected voltage.With excessive mains voltages, electroniccomponents may be damaged.