Siemens 3RT2017-2QB42 Power Contactor 3-Pole, 12A, 5.5 kW / 400V, 24V DC Coil Original Brand New

Overview

The Siemens 3RT2017-2QB42 is a high-performance 3-pole power contactor designed for industrial and commercial applications. With a 12 A AC-3e/AC-3 rating and a 5.5 kW / 400 V load capacity, this contactor ensures reliable operation for motor control and switching tasks. Its integrated varistor provides enhanced protection against voltage spikes, extending the service life of connected equipment.

Key Technical Specifications

• Article Number: 3RT2017-2QB42
• Contactor Size: S00
• Rated Operational Current (AC-3/AC-3e, 400V): 12 A
• Rated Operational Power (AC-3/AC-3e, 400V): 5.5 kW
• Coil Control Voltage: 24 V DC
• Auxiliary Contacts: 1 NC (Normally Closed)
• Terminal Type: Spring-loaded terminal
• Surge Suppression: Varistor plugged on (integrated protection)
• Expandability: No auxiliary switch can be added.

Key Features & Benefits

• Reliable Performance: Handles up to 12 A and 5.5 kW / 400 V in AC-3e/AC-3 applications.

• Enhanced Protection: Comes with a pre-installed varistor for surge voltage protection.

• Flexible Operation: Suitable for 24 V DC coil control with 0.7-1.25*Uc voltage range.

• Compact Design: Frame size S00 with 3-pole configuration, ideal for space-saving installations.

• Easy Connectivity: Spring-loaded terminals ensure quick, secure wiring.

• Auxiliary Support: Includes 1 NC auxiliary contact for control circuit integration.

• Durability: Siemens engineering ensures long-term reliability in demanding industrial environments.

Function

• Switching of AC-3/AC-3e motor loads up to 5.5 kW / 400 V.

• Protects circuits with built-in varistor from voltage spikes.

• Integration into automation and control systems with auxiliary contact.

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