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3RH1921-1EA20-ZX95
AUXILIARY SWITCH BLOCK, 2 NO,
AUXILIARY SWITCH BLOCK, 2 NO, DIN EN50005, LATERALLY, 10 MM SCREW CONNECTION,SIZE S0...S12, FOR CONTACTORS FOR SWITCHING MOTORS, 2-POLE

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FAQ Diagnostic coverage level to be specified and achievable safety integrity level for subsystems or SRP/CS with electromechanical components

This entry provides information on the diagnostic coverage level.

09/28/2018
ID: 35444114
(4)
FAQ What is the difference between positively driven contact elements of contactor relays and mirror contacts of power contactors?

This article contains a statement on the difference between the terms mirror contact and positively driven contact.

09/21/2018
ID: 109758261
(1)
FAQ General: Import of EPLAN Electric P8 macros at edz-Format

This entry contains information about import EPLAN Electric P8 macros at edz-Format in EPLAN

12/04/2017
ID: 48074331
(7)
FAQ Assessment of the effect of wear and tear on the service life of electromechanical devices

This entry contains information on the effect of wear and tear on the service life of electromechanical devices.

05/31/2017
ID: 109747636
(5)
FAQ Operation of SIRIUS Load Feeder components in altitudes of up to 5000m above sea level

This FAQ contain the statements for reduction voltage, current, setting of load current and short-circuit breaking capacity depend on the sea level.

10/14/2015
ID: 21656822
(4)
FAQ General: How to order the Product Catalog CA01

This FAQ describe how to order the Product Catalog CA01 on DVD.

07/20/2015
ID: 21656919
(3)
FAQ Overlapping time between early make- and late break auxiliary contacts of 3TH4 contactor relays and 3RH19-/3RH29 contact blocks

QUESTION: What is the overlapping time between early make- and late break auxiliary contacts of 3TH4 contactor relays and 3RH19-/3RH29 contact blocks ...

02/02/2015
ID: 21653786
(1)
FAQ Certificates of origin, certificates of conformity, test reports, factory certificates for products from the distribution center in Amberg (Lieferzentrum Amberg (LZA)).

QUESTION: Who is responsible for issuing certificates of origin and certificates of conformity (EN 10204-2004-2-1), test reports and factory certificates for products from Amberg (LZA)? ...

01/26/2015
ID: 99684616
(3)
08/06/2014
ID: 35444144
(0)
FAQ Achievable SIL with SIRIUS subsystems or subsystem elements that have a low demand rate according to IEC 61511

QUESTION: What Safety Integrity Level SIL is achievable with SIRIUS subsystems or subs ...

08/06/2014
ID: 35444323
(1)
FAQ PFHD values in the informative annex K, Table K.1 of the ISO 13849-1 standard

QUESTION: ISO 13849-1 – Application Explanations How are the PFHD values in the i...

08/05/2014
ID: 35444036
(0)
FAQ Different colors of the connecting parts on the front 3RH1921 auxiliary switch blocks

QUESTION: Why are the colors of the mechanical connection pieces different from the hammer heads of the 3RT1 contactors in the case of the front 3RH1921 auxiliary switch blocks? ...

07/23/2014
ID: 21653792
(0)
FAQ Calculation of “non-electrotechnical components” permissible on the basis of IEC 62061

QUESTION: Why may “non-electrotechnical components”, e.g. valves, also be calculated on the basis of IEC 62061? ...

05/27/2014
ID: 35444396
(0)
FAQ General: Is it mandatory to switch all phases of a 3-phase load?

QUESTION: Is it allowed to switch only 2 phases of a 3-phase load? ...

05/20/2014
ID: 21656588
(0)
FAQ Regulation for protecting switching devices against overload and short-circuits

QUESTION: How must switching devices be protected against overload and short-circui ...

05/19/2014
ID: 91198957
(0)
FAQ Pulling forces for conductors with Cage Clamp connection technology

QUESTION: What pulling forces apply for round copper conductors that are connected to ...

05/13/2014
ID: 21656695
(1)
FAQ Fuses and miniature circuit breakers for the short-circuit protection of auxiliary contacts

QUESTION: What are the consequences if the short-circuit protection of auxiliary co ...

05/08/2014
ID: 21656724
(0)
FAQ Behaviour of Low-Voltage switchgear under conditions of very low air pressure or vacuum

QUESTION: What is the behaviour of Low-Voltage switchgear under conditions of very ...

04/04/2014
ID: 21656902
(1)
FAQ 3RT1/3RT2 Contactors and 3RH1/3RH2 Cont. Relays - Behavior of AC-operated contactors during frequency fluctuations with short duration

QUESTION: What is the behavior of AC-operated 3RT1, 3RT2 and 3RH1, 3RH2 SIRIUS contactors during frequency fluctuations of sho ...

12/13/2013
ID: 51811567
(0)
FAQ 3RT1/3RT2 Contactors and 3RH1/3RH2 Cont. Relays - Where to use surge suppressors in control circuits of contactors

QUESTION: Is there a regulation that specifies the use surge suppressors on contactor magnet coils? ...

12/13/2013
ID: 21653702
(0)
 
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