Siemens

Siemens Auxiliary switch lateral, screw, 2NO current path Part number 3RH2921-1DA20

EAN / Barcode 4011209790292
Product Type Control Panel
Product Class Auxiliary contact block
ETIM Class Auxiliary contact block
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Product Description

Auxiliary Switch

The 3RH29 auxiliary switch is designed for the expansion of auxiliary contacts in the control circuit, specifically for contactors 3RT2 and contactor relays 3RH2.

Technical details:

  • Lateral installation
  • 2 NO contacts
  • On the left: 53/54, 63/64
  • On the right: 33/34, 43/44
  • Current path: 1 NO, 1 NO
  • Screw terminal
  • Compatible with contactors 3RT2 and contactor relays 3RH2
  • Versions for front or lateral mounting
  • Up to four instantaneous contacts
  • Up to two leading NO and NC contacts
  • Positively driven contacts in 3RH contactor relays
  • Mirror contacts in 3RT power contactors
  • Available with screw terminal and spring-type terminal
  • Part of the SIRIUS modular system

Customer benefits:

  • Can be laterally mounted onto 3RT2 contactors without tools
  • Simple and efficient design
  • Always up to date with the latest modular system features

Technical Specifications

Compliance/StandardsIEC 60947-4, IEC 60947-5
country_of_originCzech Republic
descriptionauxiliary switch, lateral, 2 NO, on the left: 53/54, 63/64, on the right: 33/34, 43/44, current path: 1 NO, 1 NO, screw terminal, for contactors 3RT2 and contactor relays 3RH2
IP RatingIP20
IP Rating DetailedIP20 mechanical service life (operating cycles) typical 10 000 000 electrical endurance (operating cycles) at AC
Mounting methodOther
Number of contacts as normally open contact2
Part Depth (mm)24,00mm
Part Height (mm)75,00mm
Part Width (mm)62,00mm
Rated operation current Ie at AC-15, 230 V6 A
Type of electric connectionScrew connection
Weight (g)0,039 Kg
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