3TK1910-3B
2ND AUXILIARY CONTACT BLOCK

From SIEMENS

2nd auxiliary switch block for lateral mounting to contactors left or right 1 NO + 1 NC !!! Phased-out product !!! Successor is SIRIUS 3RT Preferred successor type is 3RH1951-1SA11
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 ... +55 °C
Mechanical service life (switching cycles) typical10 000 000
Insulation voltage with degree of pollution 3 rated value690 V
Surge voltage resistance rated value6 kV
Auxiliary circuit
Number of NC contacts for auxiliary contacts
instantaneous contact1
lagging switching0
Number of NO contacts for auxiliary contacts
instantaneous contact1
leading contact0
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 V10 A
— at AC-15
— at 24 V10 A
— at 230 V5.6 A
— at 400 V3.6 A
at AC-15 at 690 V rated value2.3 A
Operating current
of auxiliary contacts at DC-13
— at 24 V10 A
— at 60 V5 A
— at 110 V1.14 A
— at 220 V0.48 A
Installation/ mounting/ dimensions
Mounting typesnap-on mounting
Width12 mm
Height70 mm
Depth51.5 mm
Connections/Terminals
Type of connectable conductor cross-sections
for auxiliary contacts
— finely stranded
— with core end processing2x (0.5 ... 1.0 mm²), 2x (0.75 ... 2.5 mm²)
at AWG conductors for auxiliary contacts2x (18 ... 12)
Safety related data
Product function positively driven operation acc. to IEC 60947-5-1Yes

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