Active
front-side auxiliary switch
Part Number: 3RH1921-1CA10
Brand
Category
Auxiliary contact block
Siemens 3RH1921-1CA10. front-side auxiliary switch, 1 NO contact, screw terminal, for contactors 3RT1.
Specifications
Mechanical
Net Weight19 g
Dimensions
Width10 mm
Height38 mm
Depth51 mm
Other
fastening methodsnap-on mounting
product categoryAuxiliary switch
— solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
product brand nameSIRIUS
product designationauxiliary switch
suitability for usefor 3RT10, 3RT12, 3RT145, 3RT146, 3RT147
design of the productfor snapping onto the front
product type designation3RH19
Substance Prohibitance (Date)07/01/2006
protection class IP on the frontIP20
surge voltage resistance rated value6 kV
— finely stranded with core end processing2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
contact reliability of auxiliary contacts1 faulty switching per 100 million (17 V, 1 mA)
mechanical service life (operating cycles) typical10 000 000
operational current at AC-15 at 690 V rated value1 A
operational current of auxiliary contacts at AC-12 maximum10 A
electrical endurance (operating cycles) at AC-15 at 230 V typical200 000
insulation voltage with degree of pollution 3 at AC rated value690 V
type of electrical connection for auxiliary and control circuitscrew-type terminals
number of CO contacts of auxiliary contacts instantaneous contact0
AWG number as coded connectable conductor cross section for auxiliary contacts20 ... 14
design of the fuse link for short-circuit protection of the auxiliary switch requiredgG: 10 A (500 V, 1 kA)
design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 VC characteristic: 10 A; 0.4 kA
