Siemens 3RH2911-1XA40-0MA0 Auxiliary Contact Block, 4 NO, Screw Terminal, Side Mount for SIRIUS 3RH2/3RT2

With a rated insulation voltage of 690 V and an impulse withstand of 6 kV, the Siemens 3RH2911-1XA40-0MA0 auxiliary contact block brings four normally open contacts to SIRIUS 3RH2 and 3RT2 contactors and relays. The block mounts laterally and uses screw terminals for secure wiring.

Overview

Part of the SIRIUS series, this contact block expands the control capabilities of compatible Siemens switching devices. It provides four NO contacts, each rated for 6 A at 230 V AC-15 and 10 A at 24 V DC-13. The screw terminals accept solid conductors from 0.5 to 4 mm² and stranded conductors from 0.5 to 2.5 mm², with a tightening torque of 0.8 to 1.2 Nm.

What stands out

• Four normally open contacts for control circuit expansion
• Side mounting for space-efficient integration
• High electrical endurance: 10 million switching cycles
• Mechanical endurance: 30 million cycles
• Wide operating temperature range: -25 to +60 °C

Technical details

• Product type: Auxiliary contact block
• Number of contacts: 4
• Contact configuration: 4 NO
• Terminal type: Screw
• Mounting position: Lateral
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• Rated operational current (AC-15, 230 V): 6 A
• Rated operational current (AC-15, 400 V): 3 A
• Rated operational current (DC-13, 24 V): 10 A
• Operating temperature range: -25 to +60 °C
• Storage temperature range: -55 to +80 °C
• Degree of protection: IP20
• Connection cross-section (solid): 0.5 - 4 mm²
• Connection cross-section (stranded): 0.5 - 2.5 mm²
• Tightening torque: 0.8 - 1.2 Nm

Our verdict

A reliable side-mounted auxiliary contact block with four NO contacts, built for demanding industrial control applications.