3RH1122-1KG40-0LA4
CONT.RELAY AC15:6A230V 2NO+2NC DC87-156V

From SIEMENS

Contactor relay, 2 NO + 1 NC 125 V DC 0.7...1.25* Us With varistor Railway version Optimum installation on standard mounting rail 20 G !!! Phased-out product !!! Successor is SIRIUS 3RH2 Preferred successor type is >>3RH2122-1KG40-0LA4<<
Product brand nameSIRIUS
Product designationAuxiliary contactor
General technical data
Size of contactorS00
Product extension
Auxiliary switchYes
Insulation voltage
with degree of pollution 3 rated value690 V
Degree of pollution3
Surge voltage resistance rated value6 kV
Protection class IP
on the frontIP20
Shock resistance10g / 5 ms and 5g / 10 ms
Mechanical service life (switching cycles)
of contactor typical30 000 000
of the contactor with added electronics-compatible auxiliary switch block typical5 000 000
of the contactor with added auxiliary switch block typical10 000 000
Reference code acc. to DIN EN 81346-2K
Reference code acc. to DIN EN 61346-2K
Ambient conditions
Installation altitude at height above sea level
maximum2 000 m
Ambient temperature
during operation-40 ... +70 °C
during storage-55 ... +80 °C
during transport-55 ... +80 °C
Control circuit/ Control
Type of voltage of the control supply voltageDC
Control supply voltage at DC
rated value125 V
Operating range factor control supply voltage rated value of magnet coil at DC
initial value0.7
Full-scale value1.25
Design of the surge suppressorwith varistor
Closing power of magnet coil at DC11 W
Holding power of magnet coil at DC4 W
Auxiliary circuit
Number of NC contacts for auxiliary contacts1
instantaneous contact1
delayed switching0
lagging switching0
make-before-break switching0
Number of NO contacts for auxiliary contacts2
instantaneous contact2
delayed switching0
leading contact0
make-before-break switching0
Number of CO contacts
for auxiliary contacts0
of auxiliary contacts instantaneous contact0
Identification number and letter for switching elements21 E
Operating current at AC-12 maximum10 A
Operating current at AC-15
at 230 V rated value6 A
at 400 V rated value3 A
at 500 V rated value2 A
at 690 V rated value1 A
Operating current at 1 current path at DC-12
at 24 V rated value10 A
at 110 V rated value3 A
at 220 V rated value1 A
Operating current at 1 current path at DC-13
at 24 V rated value10 A
at 110 V rated value1 A
at 220 V rated value0.27 A
Contact reliability of auxiliary contacts1 faulty switching per 100 million (17 V, 1 mA)
Short-circuit protection
Design of the fuse link
for short-circuit protection of the auxiliary switch requiredfuse gL/gG: 10 A
Installation/ mounting/ dimensions
Mounting position+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface
Mounting typescrew and snap-on mounting
Height57.5 mm
Width45 mm
Depth72 mm
Required spacing
with side-by-side mounting
— at the side0 mm
Connections/Terminals
Type of electrical connection
for auxiliary and control current circuitscrew-type terminals
Type of connectable conductor cross-sections
for auxiliary contacts
— solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²
— finely stranded with core end processing2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
at AWG conductors for auxiliary contacts2x (20 ... 16), 2x (18 ... 14), 1x 12
Safety related data
B10 value
with high demand rate acc. to SN 319201 000 000; With 0.3 x Ie
Proportion of dangerous failures
with low demand rate acc. to SN 3192070 %
with high demand rate acc. to SN 3192075 %
T1 value for proof test interval or service life acc. to IEC 6150820 y

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