Siemens Power contactor, 4-pole, size S0, 1NO+1NC, 24VDC Part number 3RT2325-1BB40

Product Overview

The Siemens 3RT2325-1BB40 is a SIRIUS 3RT23 power contactor designed for switching three-phase motors and other high-current loads in industrial automation systems. It features a 3-pole configuration, a 24 V DC control coil, and auxiliary contacts for feedback and control integration. Compact and reliable, this contactor provides robust performance for motor control applications up to 11 kW (AC-3, 400 V), offering long electrical endurance and compatibility with SIRIUS modular accessories.

Key Features

• 3-pole power contactor for motor and load switching
• Control supply voltage: 24 V DC
• High operational reliability and long service life
• Auxiliary contacts included for control circuit feedback
• Compatible with Siemens SIRIUS modular accessories and contactor assemblies
• Compact design for easy installation in control panels
• Low power consumption coil with integrated surge suppression

Technical Specifications

• Product Series: SIRIUS 3RT23
• Article Number: 3RT2325-1BB40
• Configuration: 3-pole contactor
• Control Supply Voltage: 24 V DC
• Rated Operational Current (AC-3, 400 V): 25 A
• Rated Power (AC-3, 400 V): 11 kW
• Rated Insulation Voltage (Ui): 690 V
• Surge Voltage Resistance: 6 kV
• Auxiliary Contacts: 1 NO + 1 NC
• Mechanical Durability: Up to 10 million operations
• Electrical Durability: Up to 1 million operations (AC-3)
• Mounting Type: Screw mounting or snap-on for DIN rail
• Protection Class: IP20 (front)
• Ambient Operating Temperature: –25 °C to +60 °C

Compliance & Certifications

• Complies with IEC/EN 60947-4-1 for low-voltage switchgear and controlgear
• Designed and tested according to Siemens SIRIUS industrial quality standards
• CE and UL certified for international use

Applications

Ideal for use in industrial control systems, machine building, conveyor drives, pumps, and compressors requiring reliable motor switching. The Siemens 3RT2325-1BB40 ensures safe, efficient operation and compatibility with SIRIUS control circuits for easy integration into automation panels and motor starter assemblies.