Siemens Power contactor, AC-3e/AC-3, 3-pole, 1NC, 12A, 5.5kW/400V, 24VDC Part number 3RT2017-1BB42-0CC0

Product Overview

The Siemens 3RT2017-1BB42-0CC0 is a 3-pole size S00 power contactor in the SIRIUS 3RT2 series, rated for 12 A (AC-3) and approximately 5.5 kW at 400 V, with a 24 V DC control coil and one normally-closed auxiliary contact. It is designed for compact motor switching and automation applications requiring reliable and efficient operation.

Key Features

• 3-pole power contactor (size S00) with integrated auxiliary contact (1 NC)
• Rated operational current: 12 A at 400 V (AC-3 duty) with corresponding power of ~5.5 kW
• Control coil voltage: 24 V DC for industrial control applications
• High insulation and surge withstand voltages for demanding environments (Ui 690 V, Uimp 6 kV)
• Compact footprint and screw-terminal connections with finger-safe protection (IP20)

Technical Specifications

• Product Series: Siemens SIRIUS 3RT2 Contactor
• Article Number: 3RT2017-1BB42-0CC0
• Number of Main Poles: 3
• Rated Operational Current (Ie): 12 A (AC-3, 400 V)
• Rated Operational Power: ~5.5 kW at 400 V
• Coil Supply Voltage: 24 V DC
• Insulation Voltage (Ui): 690 V
• Surge Withstand Voltage (Uimp): 6 kV
• Mechanical Service Life (Typical): 30 000 000 operating cycles
• Operating Ambient Temperature: –25 °C to +60 °C
• Protection Class (Front): IP20
• Weight (Approx.): 0.29 kg

Compliance & Certifications

• Complies with IEC / EN 60947 standards for power contactors
• Finger-safe terminal protection (IP20) and suitable for industrial motor control systems
• RoHS-compliant and designed for use in rigorous automation environments

Applications

The 3RT2017-1BB42-0CC0 is ideal for motor feeder panels, compact starter systems, and automation installations where a small-frame power contactor is required. Its 3-pole design, 24 V DC coil and high endurance make it suitable for switching motors and other inductive loads in industrial settings.