Siemens 3RT2015-1BB41 SIRIUS Power Contactor 3P 7A AC-3 24V DC

The Siemens 3RT2015-1BB41 is a SIRIUS 3RT2 three-pole power contactor in size S00, rated 7 A at AC-3/400 V (3 kW), controlled by a 24 V DC coil. It handles AC-3e and AC-3 switching categories across operating voltages up to 690 V and includes one built-in NO auxiliary contact with screw terminals throughout.

Technical specifications:

• MLFB: 3RT2015-1BB41
• Manufacturer: Siemens
• Product line: SIRIUS
• Product type designation: 3RT2
• Contactor size: S00
• Number of main poles: 3
• Rated current AC-3 (400 V): 7 A
• Rated current AC-1 (400 V / 40°C): 18 A
• Operating power AC-3: 1.5 kW at 230 V / 3 kW at 400 V / 4 kW at 690 V
• Insulation voltage (pollution degree 3): 690 V
• Surge voltage resistance: 6 kV (main and auxiliary circuit)
• Control supply voltage: 24 V DC
• Coil operating range: 0.8-1.1 x Us
• Coil closing and holding power: 4 W
• Auxiliary contacts: 1 NO instantaneous
• Auxiliary contact rating AC-15 (230 V): 10 A
• Terminal type: screw terminal
• Ambient operating temperature: -25 to +60°C
• Maximum installation altitude: 2,000 m
• Mechanical service life: 30,000,000 operating cycles
• Net weight: 291 g

Features and benefits:

• 30 million cycle mechanical service life supports high-frequency switching applications
• 6 kV surge voltage withstand on both main and auxiliary circuits protects against line transients
• Wide coil operating range (0.8-1.1 x Us) accommodates DC supply voltage variations
• Integrated 1 NO auxiliary contact eliminates the need for a separate add-on block
• Covers AC-3, AC-3e, AC-1, and AC-4 switching categories from a single device

Applications:

• Switching three-phase motors up to 3 kW at 400 V in AC-3 duty
• Motor starters in industrial control and switchgear panels
• Pump and fan motor control in building services installations
• Automated machinery requiring frequent AC-3e category switching

Compliant with EN 60947-1 and EN/IEC 60947-4-1. Part of the Siemens SIRIUS 3RT2 range.

Also known as: Siemens 3RT2015-1BB41, SIRIUS 3RT2 S00 power contactor, Siemens 3RT2 7A 24V DC contactor.