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Siemens 3RH2911-1DA11 Auxiliary Switch Lateral 1NO + 1NC for 3RT2.1 Contactors
Siemens 3RH2911-1DA11 Auxiliary Switch Lateral 1NO + 1NC for 3RT2.1 Contactors
Siemens 3RH2911-1DA11 Auxiliary Switch Lateral 1NO + 1NC for 3RT2.1 Contactors
Siemens 3RH2911-1DA11 Auxiliary Switch Lateral 1NO + 1NC for 3RT2.1 Contactors
Siemens 3RH2911-1DA11 Auxiliary Switch Lateral 1NO + 1NC for 3RT2.1 Contactors
Siemens 3RH2911-1DA11 Auxiliary Switch Lateral 1NO + 1NC for 3RT2.1 Contactors

SIEMENS

Siemens 3RH2911-1DA11 Auxiliary Switch Lateral 1NO + 1NC for 3RT2.1 Contactors Original Brand New

Model / SKU3RH2911-1DA11

Siemens lateral auxiliary switch block featuring a 1 NO and 1 NC contact configuration with secure screw terminals. It is specifically designed for quick and easy side-mounting onto 3RT2.1 contactors, providing essential control paths (e.g., 41/42, 53/54 on the left; 21/22, 33/34 on the right) for industrial control and feedback circuits.

Original price was: $23.75.Current price is: $10.87.
Available on backorder
  • ConditionOriginal Brand New
  • Warranty12 months

Backorder available · Factory lead time 2–3 weeks.

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Description

Overview

The Siemens 3RH2911-1DA11 auxiliary switch is a vital component for extending the functionality of your 3RT2.1 series contactors. This robust, lateral (side-mounted) auxiliary switch block provides the necessary feedback and control paths required in complex industrial automation and motor control circuits.

Featuring a reliable 1 Normally Open (NO) and 1 Normally Closed (NC) configuration, this accessory ensures precise signaling of the contactor's status. Its screw terminal design guarantees a secure and straightforward electrical connection, saving time during installation and maintenance. Upgrade your control system reliability with this genuine Siemens accessory.

Benefit

  • Enhanced Circuit Visibility: Provides immediate, reliable signaling (1 NO and 1 NC) of the contactor’s switching status, essential for interlocking and PLC inputs.

  • Seamless Compatibility: Specifically designed for the Siemens 3RT2.1 contactor line, ensuring a perfect fit and dependable mechanical operation.

  • Durable Connections: High-quality screw terminals offer a secure, vibration-resistant connection for long-term operational integrity in demanding industrial environments.

  • Flexible Mounting: Lateral mounting allows for stacking multiple auxiliary blocks or accommodating other front-mounted accessories like surge suppressors.

  • Genuine Siemens Quality: Manufactured to the highest standards, guaranteeing reliability and longevity for critical control applications.

Function

  • Provides additional auxiliary contacts for control and signaling

  • Enables monitoring of contactor status

  • Supports automation logic and interlocking systems

  • Enhances operational safety and system efficiency

Technical Specification

  • Product Number: 3RH2911-1DA11

  • Contact Configuration: 1 NO + 1 NC

  • Mounting Type: Lateral

  • Left Side Terminals: 41/42, 53/54

  • Right Side Terminals: 21/22, 33/34

  • Current Path: 1 NC, 1 NO

  • Terminal Type: Screw terminal

  • Compatible Contactors: Siemens 3RT2.1 series

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Specifications

SKU / Model3RH2911-1DA11
BrandSIEMENS
product brand nameSIRIUS
suitability for useContactor relay and power contactor
protection class IP on the frontIP20
ambient temperature-
● during storage-55 ... +80 °C
● during operation-25 ... +60 °C
mechanical service life (switching cycles) typical10 000 000
electrical endurance (switching cycles) at AC-15 at 230 V typical200 000
contact reliability of auxiliary contacts1 faulty switching per 100 million (17 V, 1 mA)
insulation voltage with degree of pollution 3 at AC rated value690 V
surge voltage resistance rated value6 kV
number of NC contacts for auxiliary contacts-
● lagging switching0
number of NO contacts for auxiliary contacts-
● instantaneous contact1
● leading contact0
operational current of auxiliary contacts at AC-12-
● at 24 V10 A
● at 230 V10 A
● maximum10 A
● of auxiliary contacts-
— at AC-14-
— at 125 V6 A
— at 250 V6 A
— at AC-15-
— at 230 V6 A
— at 400 V3 A
● at AC-15 at 690 V rated value1 A
● of auxiliary contacts at DC-12-
● with 2 current paths in series at DC-12-
● with 3 current paths in series at DC-12-
operational current-
● of auxiliary contacts at DC-13-
— at 24 V6 A
— at 60 V2 A
— at 110 V1 A
— at 220 V0.3 A
● with 2 current paths in series at DC-13-
● with 3 current paths in series at DC-13-
— at 24 V rated value10 A
— at 60 V rated value4.7 A
— at 110 V rated value3 A
— at 220 V rated value1.2 A
— at 440 V rated value0.5 A
— at 600 V rated value0.26 A
fastening methodsnap-on mounting
type of electrical connection for auxiliary and control circuitscrew-type terminals
type of connectable conductor cross-sections-
● for auxiliary contacts-
— finely stranded-
— with core end processing2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
● at AWG cables for auxiliary contacts2x (20 ... 16), 2x (18 ... 14)
product function mirror contact acc. to IEC 60947-4-1Yes
● notewith 3RT2
product function positively driven operation acc. to IEC 60947-5-1No
Functional Safety/Safety of MachineryMarine / Shipping Test Certificates
last modified:12/21/2020
Weight0.040 kg
Dimensions60.00 × 70.00 × 20.00 mm

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