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Siemens 3RH2911-2GA04 Sirius Auxiliary Switch, 4 NC Contacts, Spring-Loaded Terminal
Siemens 3RH2911-2GA04 Sirius Auxiliary Switch, 4 NC Contacts, Spring-Loaded Terminal
Siemens 3RH2911-2GA04 Sirius Auxiliary Switch, 4 NC Contacts, Spring-Loaded Terminal
Siemens 3RH2911-2GA04 Sirius Auxiliary Switch, 4 NC Contacts, Spring-Loaded Terminal
Siemens 3RH2911-2GA04 Sirius Auxiliary Switch, 4 NC Contacts, Spring-Loaded Terminal
Siemens 3RH2911-2GA04 Sirius Auxiliary Switch, 4 NC Contacts, Spring-Loaded Terminal

SIEMENS

Siemens 3RH2911-2GA04 Sirius Auxiliary Switch, 4 NC Contacts, Spring-Loaded Terminal Original Brand New

Model / SKU3RH2911-2GA04

High-reliability front-mounted auxiliary switch designed for Sirius contactor relays. Featuring 4 NC (Normally Closed) contacts and modern spring-loaded terminals, it ensures vibration-proof wiring and seamless integration with 3RH2140 and 3RH2440 models.

Original price was: $26.46.Current price is: $13.75.
In stockShips in 1–3 business days
  • ConditionOriginal Brand New
  • Warranty12 months
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Description

Overview

The Siemens 3RH2911-2GA04 is a specialized auxiliary switch block from the SIRIUS modular system. Engineered for precision and safety, this unit provides additional signaling and control logic for industrial motor starters and relays. It is specifically physically coded to ensure correct mating with compatible contactor relays, adhering strictly to EN 50011 standards for terminal marking and reliability.

Key Benefit

  • Tool-Free Installation: The spring-loaded terminal system allows for fast, maintenance-free wiring that is highly resistant to shock and vibration.

  • Error-Proof Design: Physically coded construction ensures it can only be combined with the correct 3RH2140 and 3RH2440 relay models, preventing installation errors.

  • Space-Saving: Front-mounting capability allows you to expand your control logic without increasing the footprint on the DIN rail.

  • Global Standards: Fully compliant with EN 50011, making it suitable for international industrial applications.

Function / Features

  • Front-mounted auxiliary switch for easy accessibility.

  • 4 NC (Normally Closed) contacts: 51/52, 61/62, 71/72, 81/82.

  • Current path: 1 NC for each contact.

  • Spring-loaded terminals for secure and reliable connection.

  • Physically coded to prevent misinstallation.

  • Compatible only with Siemens contactor relays 3RH2140 and 3RH2440.

  • Meets EN 50011 standards for industrial control equipment.

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Datasheet in PDF

Specifications

SKU / Model3RH2911-2GA04
BrandSIEMENS
product brand nameSIRIUS
suitability for useContactor relay
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 contact0
● 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 circuitspring-loaded terminals
type of connectable conductor cross-sections-
● for auxiliary contacts-
— finely stranded-
— with core end processing2x (0.5 ... 1.5 mm²)
— without core end processing2x (0.5 ... 2.5 mm²)
● at AWG cables for auxiliary contacts2x (20 ... 14)
product function mirror contact acc. to IEC 60947-4-1No
product function positively driven operation acc. to IEC 60947-5-1Yes
● notewith 3RH2
last modified:1/18/2021
Weight0.058 kg
Dimensions54.00 × 60.00 × 47.00 mm

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