Siemens SIRIUS 3RT2 Power Contactor 3RT2018-2AP02, 3-Pole, 18 A, 24 V AC Coil, Screw Terminals

The Siemens 3RT2018-2AP02 is a 3-pole power contactor from the SIRIUS 3RT2 series, engineered for reliable switching of motors up to 7.5 kW at 400 V AC. Its 24 V AC coil and compact S00 frame make it ideal for space-saving control panels.

Advantages

High electrical endurance of 10 million operations and mechanical endurance of 30 million cycles ensure long service life. Screw terminals provide secure, maintenance-free connections, and DIN rail or screw mounting offers flexible installation.

Suitable for

• Motor control in industrial automation
• Heating and lighting load switching
• Control panel builders requiring compact, reliable contactors

Key specifications

• Rated operational current (AC-3, 400 V): 18 A
• Rated operational power (AC-3, 400 V): 7.5 kW
• Control supply voltage: 24 V AC, 50/60 Hz
• Auxiliary contacts: 1 NO + 1 NC
• Connection type: Screw terminals
• Mounting: DIN rail or screw
• Frame size: S00
• Rated insulation voltage: 690 V
• Rated impulse withstand voltage: 6 kV
• Operating temperature range: -25 to +60 °C
• Electrical endurance (AC-3): 10 million cycles
• Mechanical endurance: 30 million cycles
• Degree of protection: IP20
• Standards: IEC 60947, EN 60947
• Short-circuit protection (gG fuse): 35 A

Recommendations

For reliable motor switching in compact control panels, the Siemens 3RT2018-2AP02 offers proven performance and easy installation.