SIEMENS Contactor AC-3 22kW/400V 2NO+2NC 230V AC 50A S2 Screw Terminals (3RT20361AP04)

With a rated operational current of 50 A at AC-3, 400 V, this contactor reliably switches motors up to 22 kW. The 230 V AC coil and 2 NO + 2 NC auxiliary contacts make it a versatile choice for industrial control circuits.

Overview

The SIEMENS 3RT20361AP04 is a 3-pole contactor from the SIRIUS series, size S2. It is designed for switching three-phase motors under AC-3 utilization category, handling up to 22 kW at 400 V. The main circuit and auxiliary/control circuit both use screw terminals, ensuring secure connections in demanding environments.

What stands out

• High switching capacity: 50 A at AC-3, 400 V
• Durable construction: mechanical endurance of 30 million cycles, electrical endurance of 10 million cycles
• Wide operating temperature range: -25 to +60 °C
• Flexible mounting: DIN rail or screw mounting

Technical details

• Rated operational current (AC-3, 400 V): 50 A
• Rated operational power (AC-3, 400 V): 22 kW
• Control supply voltage: 230 V AC, 50/60 Hz
• Number of poles: 3
• Auxiliary contacts: 2 NO + 2 NC
• Utilization category: AC-3
• Contactor size: S2
• Connection type (main circuit): Screw terminal
• Connection type (auxiliary/control circuit): Screw terminal
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• Rated operational voltage (Ue): 690 V AC
• Short-circuit protection (gG fuse): 100 A
• Mechanical endurance: 30 million switching cycles
• Electrical endurance (AC-3): 10 million switching cycles
• Degree of protection: IP20 (front side)
• Operating temperature range: -25 to +60 °C
• Mounting type: DIN rail / Screw mounting

Our verdict

A robust and reliable contactor for industrial motor control, offering high switching capacity and long service life. The screw terminals and flexible mounting options simplify installation and maintenance.