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Siemens 3RU2126-4AC0

overload relay 11...16 A thermal for motor protection frame size S0, Class 10 for mounting on contactors main circuit: spring-loaded terminal auxiliary circuit: spring-loaded terminal manual-automatic RESET

SiemensMFR # 3RU2126-4AC0SKU # CEY-8EF3B02F9B29

product brand nameSIRIUS

product designationthermal overload relay

product type designation3RU2

size of overload relayS0

per pole2.7 W

surge voltage resistance rated value6 kV

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About This Product

Siemens 3RU2126-4AC0

Genuine, certified Siemens product
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Product selection and compatibility support from our technical team
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Specifications

product brand nameSIRIUS

product designationthermal overload relay

product type designation3RU2

General technical data

size of overload relayS0

size of contactor can be combined company-specificS0

power loss [W] for rated value of the current at AC in hot operating state8.1 W

per pole2.7 W

type of calculation of power loss current-dependentquadratic

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

surge voltage resistance rated value6 kV

in networks with ungrounded star point between auxiliary and auxiliary circuit440 V

in networks with grounded star point between auxiliary and auxiliary circuit440 V

in networks with ungrounded star point between main and auxiliary circuit440 V

in networks with grounded star point between main and auxiliary circuit440 V

shock resistance according to IEC 60068-2-278g / 11 ms

reference code according to IEC 81346-2F

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

Net Weight0.219 kg

Ambient conditions

installation altitude at height above sea level maximum2 000 m

during operation-40 ... +70 °C

during storage-55 ... +80 °C

during transport-55 ... +80 °C

temperature compensation-40 ... +60 °C

relative humidity during operation10 ... 95 %

Main circuit

number of poles for main current circuit3

adjustable current response value current of the current-dependent overload release11 ... 16 A

rated value690 V

at AC-3e rated value maximum690 V

operating frequency rated value50 ... 60 Hz

operational current rated value16 A

operational current at AC-3e at 400 V rated value16 A

— at 400 V rated value7.5 kW

— at 500 V rated value7.5 kW

— at 690 V rated value11 kW

— at 400 V rated value7.5 kW

— at 500 V rated value7.5 kW

— at 690 V rated value11 kW

Auxiliary circuit

design of the auxiliary switchintegrated

number of NC contacts for auxiliary contacts1

notefor contactor disconnection

number of NO contacts for auxiliary contacts1

notefor message "Tripped"

number of CO contacts for auxiliary contacts0

at 24 V3 A

at 110 V3 A

at 120 V3 A

at 125 V3 A

at 230 V2 A

at 400 V1 A

at 690 V0.75 A

at 24 V2 A

at 60 V0.3 A

at 110 V0.22 A

at 125 V0.22 A

at 220 V0.11 A

contact rating of auxiliary contacts according to ULB600 / R300

Protective and monitoring functions

trip classCLASS 10

design of the overload releasethermal

UL/CSA ratings

at 480 V rated value16 A

at 600 V rated value16 A

Short-circuit protection

for short-circuit protection of the auxiliary switch requiredfuse gG: 6 A, quick: 10 A

Installation/ mounting/ dimensions

mounting positionfor mounting on contactors: with a vertical mounting plane +/-135° rotatable & +/- 22.5° tiltable, stand-alone installation: with a vertical mounting plane +/-135° rotatable and +/-45° tiltable; for more details see manual

fastening methodContactor mounting

height102 mm

width45 mm

depth84 mm

Connections/ Terminals

product component removable terminal for auxiliary and control circuitNo

for main current circuitspring-loaded terminals

for auxiliary and control circuitspring-loaded terminals

arrangement of electrical connectors for main current circuitTop and bottom

— solid or stranded1x (1 ... 10 mm²)

— finely stranded with core end processing1x (1 ... 6 mm²)

— finely stranded without core end processing1x (1 ... 6 mm²)

for AWG cables for main contacts1x (18 ... 8)

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

— finely stranded with core end processing2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)

— finely stranded without core end processing2x (0.5 ... 1.5 mm²)

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

design of screwdriver shaftDiameter 3 mm

size of the screwdriver tip3,0 x 0,5 mm

Safety related data

failure rate [FIT] with low demand rate according to SN 3192050 FIT

MTTF with high demand rate2 280 a

IEC 61508

for proof test interval or service life according to IEC 6150820 a

Electrical Safety

protection class IP on the front according to IEC 60529IP20

touch protection on the front according to IEC 60529finger-safe, for vertical contact from the front

Display

display version for switching statusSlide switch

Approvals Certificates

global warming potential [CO2 eq] / during manufacturing1.57 kg

global warming potential [CO2 eq] / during sales0.0608 kg

global warming potential [CO2 eq] / during operation55.4 kg

global warming potential [CO2 eq] / after end of life-0.0747 kg

global warming potential [CO2 eq] / total56.9 kg

Accessories 4

Genuine accessories that can be used with the Siemens 3RU2126-4AC0 motor and are supplied separately are listed below. Click a code to open the accessory page and see the other compatible motors.

Part no	Description	Compatible motors
3RV2908-0P	Aksesuar · Sealing covers · sealing covers
3RT2025-1BB40	Seçmeli zorunlu ürün
3RU2926-3AA01	Seçmeli zorunlu ürün · terminal support · stand-alone installation supports
3RT2025-1AP00	Seçmeli zorunlu ürün