Siemens Power contactor, 3-pole, size S00, 1NC, 12A, 5.5kW Part number 3RT2017-1BB42

Product Overview

Siemens Power Contactor AC-3/AC-3e, 3-pole, 1NC, Size S00, 5.5 kW — the 3RT2017-1BB42 is a SIRIUS 3RT2 series power contactor designed for reliable switching and control of three-phase motors and industrial loads. Equipped with a 24 V DC coil and rated at 12 A (AC-3) at 400 V, it offers dependable performance in motor starter circuits, automation systems, and machinery control panels. Its compact S00 frame, integrated auxiliary contact, and durable construction ensure high operational reliability in demanding industrial environments.

Key Features

• SIRIUS 3RT2 power contactor for AC-3 and AC-3e motor switching
• 3-pole configuration for three-phase applications
• Integrated auxiliary contact: 1 NC
• 24 V DC coil suitable for control circuits and automation systems
• Rated operational current: 12 A (AC-3)
• Rated motor power: 5.5 kW at 400 V
• Compact S00 design for efficient panel layout
• Screw-terminal connection for secure installation
• High mechanical endurance for long service life

Technical Specifications

• Article Number: 3RT2017-1BB42
• Product Family: SIRIUS 3RT2 Contactors
• Number of Poles: 3
• Auxiliary Contacts: 1 NC
• Coil Voltage: 24 V DC
• Rated Operational Current (AC-3): 12 A at 400 V
• Rated Motor Power: 5.5 kW at 400 V
• Frame Size: S00
• Connection Type: Screw terminals
• Rated Insulation Voltage: 690 V
• Surge Withstand Voltage: 6 kV
• Mechanical Endurance: approx. 30 million operations
• Mounting: DIN rail or panel mounting
• Operating Temperature: −25 °C to +60 °C

Compliance & Standards

• Designed according to IEC 60947 requirements for low-voltage switching devices
• Meets Siemens SIRIUS standards for performance and reliability
• Suitable for global three-phase control and motor switching applications

Applications

The Siemens 3RT2017-1BB42 is ideal for switching small to medium three-phase motors, pumps, fans, compressors, and general loads in industrial automation systems. Its compact S00 construction and integrated auxiliary contact make it suitable for interlocking, signalling, and motor starter combinations in control panels and machinery.