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Siemens SIRIUS 3RH2911-1HA31

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3RH2911-1HA31

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The Siemens 3RH2911-1HA31 is an auxiliary switch designed for versatile applications within the SIRIUS series. Featuring a contact configuration of three normally open contacts and one normally closed contact, this device functions effectively at an insulation voltage of 690 V.

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Technical specifications for 3RH2911-1HA31

ManufacturerSiemens
Product TypeAuxiliary Switch
Product LineSIRIUS
Part Number3RH2911-1HA31
Weight0.13 lbs (0.06 kg)
Contact Configuration3 Normally Open + 1 Normally Closed
IP RatingIP20
Mounting TypeSnap-on mounting
Insulation Voltage690 V
Operational Current (AC-12)10.0 A
Operational Current (AC-15)6 A at 24V/230V
Connection TypeScrew-type terminals
Terminal Torque0.8 to 1.2 Nm
Minimum Operating Temperature-25°C
Maximum Operating Temperature60 °C
Relative Humidity5% to 95% (non-condensing)
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The 3RH2911-1HA31 from Siemens represents a crucial component in the SIRIUS series, functioning as an auxiliary switch with multiple contacts. It boasts a configuration that includes three normally open contacts alongside one normally closed contact, providing flexibility in control circuits. This auxiliary switch is designed to handle an insulation voltage of up to 690 volts, ensuring compatibility with high-voltage environments.

In terms of current ratings, it operates at a maximum of 10.0 A under AC-12 service conditions and supports 6 A in AC-15 applications at standard voltages of 24V or 230V. Mounting options are simplified with a snap-on design, making installation straightforward.

The 3RH2911-1HA31 showcases a robust IP20 rating, allowing it to be utilized effectively in controlled environments. Its temperature range is notably broad, operating efficiently between -25°C and 60°C. Additionally, it can function reliably in relative humidity conditions ranging from 5% to 95% without condensation. The switch features screw-type terminals for stable connections, with a terminal torque specification of 0.8 to 1.2 Nm, ensuring secure and efficient connections in assembly.