Siemens 3RT2023-2BB40 SIRIUS 3RT2 Power Contactor AC-3 9A 4kW 24V DC 3P 1NO+1NC S0

Basic Specifications

• Brand: Siemens
• Model: 3RT2023-2BB40
• Series: SIRIUS 3RT2
• Size: S0
• Rated Power AC-3 (400V): 4 kW
• Rated Current AC-3: 9 A
• Coil Voltage: 24V DC
• Main Contacts: 3-pole (3NO)
• Auxiliary Contacts: 1NO + 1NC
• Utilization Category: AC-3 / AC-3e
• Rated Insulation Voltage: 690V
• Terminal Type: Spring-loaded (screwless)
• Mounting: DIN rail
• Protection Class: IP20
• Operating Temperature: -25°C ~ +60°C
• Dimensions (W×H×D): 45 × 58 × 107 mm
• Weight: Approx. 350 g
• Approvals: CE, UL, CSA, CCC, EAC

Features & Benefits

• 24V DC Coil: Stable for PLC control, low holding power
• S0 Compact Size: 45mm width, saves cabinet space
• 1NO+1NC Auxiliary: For interlock, status feedback, alarm circuits
• Spring Terminals: Tool-free, fast wiring, anti-vibration
• High Compatibility: Works with IE2/IE3/IE4 high-efficiency motors
• Long Life: Mechanical life up to 30 million cycles

Applications

• 4kW and below motor control: fans, pumps, conveyors, compressors
• HVAC and building automation
• Packaging machinery, textile equipment
• PLC output-driven switching circuits
• Control panel power distribution