3RT2448-6KB40-0KS0

Description

Overview

The Siemens 3RT2448-6KB40-0KS0 AC-1 contactor is a high-performance switching device designed for industrial and commercial electrical applications. Engineered to handle 160 A at 690 V, it ensures reliable operation under demanding conditions. Its 3-pole design with integrated varistor protects your system from voltage spikes, while the auxiliary contacts (1 NO + 1 NC) provide additional control flexibility.

This contactor is optimized for ring cable lug connections in the main circuit and features screw terminals for control and auxiliary circuits. Its compact S3 frame size and customer-specific configuration make it a versatile solution for customized electrical setups. Note: Only the auxiliary switch 3RH2911-2XF22-0KS can be added.

Key Benefit

• High Current Capacity: Supports up to 160 A at 690 V, suitable for heavy-duty applications.

• Voltage Protection: Integrated varistor safeguards the circuit against voltage spikes.

• Flexible Control: 1 NO + 1 NC auxiliary contacts enhance operational versatility.

• Durable Connections: Main circuit with ring cable lug connection; control circuit with screw terminals.

• Compact & Customizable: Frame size S3 allows for efficient installation in customer-specific setups.

• Reliable Siemens Quality: Ensures long-lasting performance and reduced maintenance.

Function

• Switching of AC-1 loads

• Protection against overvoltage through integrated varistor

• Auxiliary signaling via NO and NC contacts

• Integration with compatible Siemens auxiliary switches for extended control

Technical Specification

• Model Number: 3RT2448-6KB40-0KS0

• Contactor Type: AC-1

• Current Rating: 160 A

• Voltage Rating: 690 V / 40 °C

• Poles: 3

• Coil Voltage: 24 V DC

• Coil Operating Range: 0.8–1.2 × Uc

• Integrated Varistor: Yes

• Auxiliary Contacts: 1 NO + 1 NC

• Main Circuit Connection: Ring cable lug

• Control/Auxiliary Circuit: Screw terminal

• Frame Size: S3

• Compatibility: Only auxiliary switch 3RH2911-2XF22-0KS

• Customer-Specific Design: Yes