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Siemens 3RH2921-2DA20

auxiliary switch, lateral, 2 NO, on the left: 53/54, 63/64, on the right: 33/34, 43/44, current path: 1 NO, 1 NO, spring-loaded terminal, for contactors 3RT2 and contactor relays 3RH2

SiemensMFR # 3RH2921-2DA20SKU # CEY-8EF3B0394321

product brand nameSIRIUS

product categoryAuxiliary switch

product designationauxiliary switch

design of the productfirst laterally mountable

product type designation3RH29

suitability for usefor 3RT2.2, 3RT2.3, 3RT2.4, 3RH2

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About This Product

auxiliary switch, lateral, 2 NO, on the left: 53/54, 63/64, on the right: 33/34, 43/44, current path: 1 NO, 1 NO, spring-loaded terminal, for contactors 3RT2 and contactor relays 3RH2

Siemens 3RH2921-2DA20

Genuine, certified Siemens product
Fast sourcing through a worldwide supply network
Product selection and compatibility support from our technical team
Equivalent and alternative product suggestions
Quotation and lead time tailored to your request

Specifications

product brand nameSIRIUS

product categoryAuxiliary switch

product designationauxiliary switch

design of the productfirst laterally mountable

product type designation3RH29

suitability for usefor 3RT2.2, 3RT2.3, 3RT2.4, 3RH2

General technical data

insulation voltage with degree of pollution 3 at AC rated value690 V

surge voltage resistance rated value6 kV

protection class IP on the frontIP20

mechanical service life (operating cycles) typical10 000 000

electrical endurance (operating cycles) at AC-15 at 230 V typical200 000

Substance Prohibitance (day/month/year)10/01/2009

Net Weight49.69 g

instantaneous contact0

lagging switching0

instantaneous contact2

leading contact0

number of CO contacts of auxiliary contacts instantaneous contact0

operational current at AC-15 at 690 V rated value1 A

at 24 V10 A

at 230 V10 A

at 125 V6 A

at 250 V6 A

operational current of auxiliary contacts at AC-12 maximum10 A

at 24 V6 A

at 230 V6 A

at 400 V3 A

at 24 V10 A

at 110 V3 A

at 220 V1 A

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

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

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

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

at 24 V6 A

at 48 V2 A

at 60 V2 A

at 110 V1 A

at 125 V0.9 A

at 220 V0.3 A

at 250 V0.3 A

design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 VC characteristic: 10 A; 0.4 kA

contact reliability of auxiliary contacts1 faulty switching per 100 million (17 V, 1 mA)

Ambient conditions

during operation-25 ... +60 °C

during storage-55 ... +80 °C

Safety related data

mirror contact according to IEC 60947-4-1Yes; with 3RT2

positively driven operation according to IEC 60947-5-1No

Short-circuit protection

design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 VC characteristic: 10 A; 0.4 kA

design of the fuse link for short-circuit protection of the auxiliary switch requiredgG: 10 A (690 V, 1 kA)

Installation/ mounting/ dimensions

fastening methodsnap-on mounting

height64.8 mm

width10 mm

depth66 mm

Connections/ Terminals

type of electrical connection for auxiliary and control circuitspring-loaded terminals

solid or stranded0.5 ... 2.5 mm²

finely stranded with core end processing0.5 ... 2.5 mm²

finely stranded without core end processing0.5 ... 2.5 mm²

— solid or stranded2x (0.5 ... 2.5 mm²)

— finely stranded with core end processing2x (0.5 ... 1.5 mm²)

— finely stranded without core end processing2x (0.5 ... 2.5 mm²)

for AWG cables for auxiliary contacts2x (20 ... 14)

AWG number as coded connectable conductor cross section for auxiliary contacts20 ... 14

Approvals Certificates

global warming potential [CO2 eq] / during manufacturing0.2 kg

global warming potential [CO2 eq] / during operation0.56 kg

global warming potential [CO2 eq] / after end of life0.03 kg

global warming potential [CO2 eq] / total0.788 kg

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Siemens 3RH2921-2DA20

About This Product

Siemens 3RH2921-2DA20

Specifications

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