Siemens 3RT2017-1BB41 Power Contactor 3P 12A 5.5kW 24V DC

The Siemens 3RT2017-1BB41 is a SIRIUS 3RT2 series 3-pole power contactor rated at 12 A AC-3 and 5.5 kW at 400 V. It features a 24 V DC control coil and one integrated NO auxiliary contact, making it suitable for motor switching in automated industrial environments. The S00 frame size provides a compact footprint for space-constrained control panel installations.

Technical specifications:

• MLFB: 3RT2017-1BB41
• Manufacturer: Siemens
• Product line: SIRIUS
• Product type: Power contactor (3RT2), size S00
• Main circuit poles: 3
• Rated current at AC-3 (400 V): 12 A
• Rated current at AC-1 (400 V, 40 °C): 22 A
• Operating power at AC-3 (400 V): 5.5 kW
• Maximum operating voltage AC-3/AC-3e: 690 V
• Control supply voltage: 24 V DC
• Control voltage operating range: 0.8 - 1.1 x rated value
• Coil closing power / holding power: 4 W / 4 W
• Auxiliary contacts: 1 NO (instantaneous)
• Terminal type: Screw terminal
• Insulation voltage main/auxiliary circuit (pollution degree 3): 690 V
• Surge voltage resistance main/auxiliary circuit: 6 kV
• Mechanical service life: 30,000,000 operating cycles
• Closing delay (DC): 30 - 100 ms
• Opening delay (DC): 7 - 13 ms
• Operating temperature: -25 ... +60 °C
• Storage temperature: -55 ... +80 °C
• Installation altitude: max 2,000 m
• Net weight: 291 g

Features and benefits:

• 30,000,000 operating cycle mechanical service life for long-term, maintenance-free switching
• Low coil power consumption of 4 W (closing and holding) minimises panel heat load
• 24 V DC coil enables direct connection to PLC outputs without additional interface relays
• Compact S00 frame reduces DIN rail space compared to larger contactor sizes
• 1 NO auxiliary contact provides interlocking or status feedback without add-on blocks
• Wide operating temperature range (-25 to +60 °C) supports indoor and temperature-variable environments

Applications:

• Starting and switching 3-phase motors up to 5.5 kW at 400 V in AC-3 duty
• PLC-controlled motor circuits in industrial automation and machine control panels
• Frequent switching applications at up to 750 operations per hour at AC-3
• Low-voltage motor control centres and switchgear assemblies
• Applications requiring protective separation up to 400 V between coil and main contacts per EN 60947-1

Compliant with EN 60947-1 for protective separation between coil and main contacts. Part of the Siemens SIRIUS 3RT2 range.

Also known as: Siemens 3RT2017-1BB41, SIRIUS 3RT2 power contactor 12A, Siemens S00 contactor 24V DC coil.