3RT23 / 3RT13 四极接触器（主触点 4 常开）可用于通断阻性负载（如加热回路），电流 140 A。 3RT25 / 3RT15 四极接触器（主触点 2 常开 2 常闭）可用于起重电机的制动保护，双速电机绕组的切换等。 接口继电器可用于 15 kW 以下负载，线圈经优化可直接用于 PLC 控制。 3RH11221AN10 3RH11221AN20 3RH11221AN60 3RH11221AP00 3RH11221AP000AA6 3RH11221AP000RC0 3RH11221AP001AA0 3RH11221AP60 3RH11221AR00 3RH11221AR10 3RH11221AR60 3RH11221AS00 3RH11221AT60 3RH11221AU00 3RH11221AU10 3RH11221AU60 3RH11221AV00 3RH11221AV60 3RH11221BA40 3RH11221BB40 3RH11221BB400AA6 3RH11221BB400TK0 3RH11221BB400TK1 3RH11221BC40 3RH11221BD40 3RH11221BE40 3RH11221BE400AA6 3RH11221BE80 3RH11221BF40 3RH11221BF400AA6 3RH11221BG40 3RH11221BG400AA6 3RH11221BK80 3RH11221BM40 3RH11221BM400AA6 3RH11221BN40 3RH11221BN400AA6 3RH11221BP40 3RH11221BW40 3RH11221BW400AA6 3RH11221HB40 3RH11221HE40 3RH11221JB40 3RH11221KB40 3RH11221KE40 3RH11221KF40 3RH11221KF400LA4 3RH11221KF402AA0 3RH11221KG400LA0 3RH11221KG400LA2 3RH11221KG400LA3 3RH11221KG400LA4 3RH11221KM400LA4 3RH11221KV800LA0 3RH11221MB40