Siemens 3RT2023-1BB40 Power Contactor 9A 4kW 3P 24V DC S0

The Siemens 3RT2023-1BB40 is a SIRIUS 3RT2 series 3-pole power contactor rated 9 A at 400 V (AC-3) with an operating power of 4 kW at 400 V. It is controlled by a 24 V DC coil and includes 1 NO + 1 NC auxiliary contacts in a size S0 housing with screw terminals.

Technical specifications:

• MLFB: 3RT2023-1BB40
• Manufacturer: Siemens
• Product line: SIRIUS
• Size: S0
• Number of poles (main circuit): 3
• Rated current AC-3 (400/500/690 V): 9 A
• Rated current AC-1 (400 V, 40°C): 40 A
• Operating power AC-3: 4 kW at 400 V, 7.5 kW at 690 V
• Maximum operating voltage: 690 V
• Control supply voltage: 24 V DC
• Auxiliary contacts: 1 NO + 1 NC
• Terminal type: screw terminal
• Insulation voltage (main and auxiliary circuits): 690 V, pollution degree 3
• Surge voltage (main and auxiliary circuits): 6 kV
• Coil closing and holding power: 5.9 W
• Closing delay (DC): 50 - 170 ms
• Opening delay (DC): 15 - 18 ms
• Mechanical service life: 10,000,000 operating cycles
• Operating temperature: -25 to +60°C
• Storage temperature: -55 to +80°C
• Max installation altitude: 2,000 m
• Net weight: 604 g

Features and benefits:

• Supports AC-3 and AC-3e switching categories at voltages up to 690 V
• Integrated 1 NO + 1 NC auxiliary contacts for circuit feedback and interlocking
• Low power loss of 0.6 W at rated AC current in hot operating state
• Mechanical service life of 10,000,000 operating cycles for high-duty applications
• Wide ambient temperature range of -25 to +60°C suitable for varied installation conditions

Applications:

• Direct-on-line starting and stopping of 3-phase AC motors up to 4 kW at 400 V (AC-3)
• Switching resistive and slightly inductive loads in industrial control panels (AC-1)
• Plugging and counter-current braking of AC motors up to 2 kW at 400 V (AC-4)
• Integration with 24 V DC PLC output stages in industrial automation systems

Compliant with EN 60947-1. Part of the Siemens SIRIUS 3RT2 range.

Also known as: Siemens 3RT2023-1BB40, 3RT20231BB40, SIRIUS 3RT2 power contactor 9A 24V DC.