3RH1921-2HA31 SIEMENS Auxiliary switch block, 31, 3 NO + 1 NC, EN 50005 spring-type connection system, for m.. View larger
Images are for illustrative purposes only. Please refer to data sheet for details.

3RH1921-2HA31 SIEMENS Auxiliary switch block, 31, 3 NO + 1 NC, EN 50005 spring-type connection system, for m..

3RH1921-2HA31

SIEMENS

Auxiliary switch block, 31, 3 NO + 1 NC, EN 50005 spring-type connection system, for motor contactors, 4-pole ! Phased-out product! Successor is SIRIUS 3RH2

More details


Low-voltage industrial components > Auxiliary contact block

CONTROL AND CONTACTORS > Contactors for switching motors

* Brand new product in its original packaging covered by the warranties and certifications provided by SIEMENS

* This article may be obsolete. Ask for a quotation and we will check if there are any units available. If not, one of our technicians will look for an alternative solution.

If our price is not the best, please ask us for a quote. Ask for a quotation

Best sellers

More info



ETIM: EC000041 - Auxiliary contact block

Value Unit
Number of contacts as change-over contact (EF008257) 0
Number of contacts as normally open contact (EF008256) 3
Number of contacts as normally closed contact (EF008255) 1
Number of fault-signal switches (EF007613) 0
Rated operation current Ie at AC-15, 230 V (EF001385) 6A
Type of electric connection (EF003961) Spring clamp connection
Model (EF000010) Top mounting
Mounting method (EF000003) Other
Lamp holder (EF000048) None


Auxiliary switch block, 31, 3 NO + 1 NC, EN 50005 spring-type connection system, for motor contactors, 4-pole ! Phased-out product! Successor is SIRIUS 3RH2
General technical data
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
Auxiliary circuit
Number of NC contacts for auxiliary contacts
● instantaneous contact1
Number of NO contacts for auxiliary contacts
● instantaneous contact3
Operating current of auxiliary contacts at AC-12
● at 24 V10 A
● at 230 V10 A
● maximum10 A
Operating current
● of auxiliary contacts
— at AC-14
— at 125 V6 A
— at 250 V6 A
— at AC-15
— at 24 V6 A
— at 230 V6 A
— at 400 V3 A
● at AC-15 at 690 V rated value1 A
Operating current
● of auxiliary contacts at DC-12
— at 24 V10 A
— at 110 V3 A
— at 220 V1 A
● with 2 current paths in series at DC-12
— at 24 V rated value10 A
— at 60 V rated value10 A
— at 110 V rated value4 A
— at 220 V rated value2 A
— at 440 V rated value1.3 A
— at 600 V rated value0.65 A
● with 3 current paths in series at DC-12
— at 24 V rated value10 A
— at 60 V rated value10 A
— at 110 V rated value10 A
— at 220 V rated value3.6 A
— at 440 V rated value2.5 A
— at 600 V rated value1.8 A
Operating 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
— at 24 V rated value10 A
— at 60 V rated value3.5 A
— at 110 V rated value1.3 A
— at 220 V rated value0.9 A
— at 440 V rated value0.2 A
— at 600 V rated value0.1 A
● 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
Installation/ mounting/ dimensions
Mounting typesnap-on mounting
Width44 mm
Height38 mm
Depth51 mm
Connections/ Terminals
Type of electrical connection for auxiliary and control current 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 conductors for auxiliary contacts2x (20 ... 14)
Safety related data
Product function Mirror contact acc. to IEC 60947-4-1Yes
● Notewith 3RT1
Product function positively driven operation acc. to IEC 60947-5-1No
Certificates/ approvals
General Product ApprovalFunctional Safety/Safety of Machinery

CCC

CSA

UL

KC

EAC

Type Examination Certificate

Declaration of ConformityTest CertificatesShipping Approvalother

EC/EU-Declaration of Conformity

Miscellaneous

Special Test Certificate

ABS (American Bureau of Shipping)

RMRS / Russian Maritime Register

Confirmation

Railway

Special Test Certificate

Type Test Certificates/Test Report

Further information
Information- and Downloadcenter (Catalogs, Brochures,…)
Industry Mall (Online ordering system)
Cax online generator
Service&Support (Manuals, Certificates, Characteristics, FAQs,...)
Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)
last modified:05/15/2020


Product
Article Number (Market Facing Number)3RH1921-2HA31
Product DescriptionAuxiliary switch block, 31, 3 NO + 1 NC, EN 50005 spring-type connection system, for motor contactors, 4-pole ! Phased-out product! Successor is SIRIUS 3RH2
Product familyNot available
Product Lifecycle (PLM)PM410:Product cancellation
PLM Effective DateProduct is cancelled since: 01.10.2019
Price data
Price Group41B
Surcharge for Raw MaterialsNone
Metal FactorLDP-----
Delivery information
Export Control RegulationsECCN : N / AL : N
Standard lead time ex-works1 Day/Days
Net Weight (kg)0,062 Kg
Product Dimensions (W x L x H)Not available
Packaging Dimension45,00 x 51,00 x 64,00
Package size unit of measureMM
Quantity Unit1 Piece
Packaging Quantity1
Additional Product Information
EAN4011209305779
UPC754554432601
Commodity Code85365080
LKZ_FDB/ CatalogIDCC-IC10
Product Group3729
Group CodeR711
Country of originCzech Republic
Compliance with the substance restrictions according to RoHS directiveSince: 01.07.2006
Product classC: products manufactured / produced to order, which cannot be reused or re-utilised or be returned against credit.
WEEE (2012/19/EU) Take-Back ObligationYes
REACH Art. 33 Duty to inform according to the current list of candidates
There is currently no information on SVHC (Substances of Very High Concern http://echa.europa.eu/web/guest/candidate-list-table) from the supply chain and our established procedures for screening our products for Substances of Very High Concern.We compare our products regularly with the information of the upstream users with regard to the substances indicated in the candidate list in accordance with the requirements of the REACH regulation. As soon as we have new findings, our information will be updated accordingly.
Classifications
Not available

Datasheet - PDF

Reviews (0)

No customer reviews for the moment.

Add Review
hide form
Rating:
Name:
Email:
Subject:
Text:
  Captcha
  Add review

All ratings we receive from the items we offer are real and verified. A small gesture, but a lot of value. That's why we thank you for that minute you invest in leaving us your opinion and qualification about the products, because it helps us to continue improving and to offer you a service of even higher quality.