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Siemens 3RA2437-8XE32-1NB3

star-delta (wye-delta) combination, IO-Link AC-3, 55 kW/400 V, 20-33 V AC/DC, 3-pole, size S2, screw terminal electrical and mechanical interlock 3 NO + 3 NC integrated

SiemensMFR # 3RA2437-8XE32-1NB3SKU # CEY-8EF3B0395715

product brand nameSIRIUS

product type designation3RA24

1 of the supplied contactor3RT2037-1NB30-0CC0

2 of the supplied contactor3RT2037-1NB30

3 of the supplied contactor3RT2035-1NB30

of the supplied RS assembly kit3RA2933-2BB1

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About This Product

star-delta (wye-delta) combination, IO-Link AC-3, 55 kW/400 V, 20-33 V AC/DC, 3-pole, size S2, screw terminal electrical and mechanical interlock 3 NO + 3 NC integrated

Siemens 3RA2437-8XE32-1NB3

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 designationContactor assembly for star-delta (wye-delta) start

product type designation3RA24

1 of the supplied contactor3RT2037-1NB30-0CC0

2 of the supplied contactor3RT2037-1NB30

3 of the supplied contactor3RT2035-1NB30

of the supplied RS assembly kit3RA2933-2BB1

of the supplied function module for communication3RA2711-1CA00

General technical data

size of contactorS2

product extension auxiliary switchNo

at DC7.7 g / 5 ms, 4.5 g / 10 ms

at DC12 g / 5 ms, 7 g / 10 ms

of contactor typical10 000 000

of the contactor with added auxiliary switch block typical10 000 000

reference code according to IEC 81346-2Q

Substance Prohibitance (day/month/year)10/01/2014

SVHC substance nameLead CAS-No. 7439-92-1 Lead monoxide (lead oxide) CAS-No. 1317-36-8 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-10-5 Melamine CAS-No. 108-78-1

Net Weight4.022 kg

Ambient conditions

installation altitude at height above sea level maximum2 000 m

during operation-25 ... +60 °C

during storage-55 ... +80 °C

Main circuit

number of poles for main current circuit3

number of NO contacts for main contacts3

number of NC contacts for main contacts0

at AC-3 rated value maximum690 V

— at 400 V rated value115 A

— at 400 V rated value55 kW

at AC-3 maximum700 1/h

Control circuit/ Control

type of voltage of the control supply voltageAC/DC

at 50 Hz20 ... 33 V

at 60 Hz20 ... 33 V

control supply voltage 1 at DC20 ... 33 V

design of the surge suppressorwith varistor

at 50 Hz82 V·A

at 60 Hz82 V·A

at 50 Hz0.64

at 60 Hz0.5

at 50 Hz6 V·A

at 60 Hz6 V·A

at 50 Hz0.36

at 60 Hz0.39

closing power of magnet coil at DC28 W

holding power of magnet coil at DC4 W

Auxiliary circuit

instantaneous contact3

contact reliability of auxiliary contacts< 1 error per 100 million operating cycles

UL/CSA ratings

contact rating of auxiliary contacts according to ULA600 / Q600

Short-circuit protection

— with type of coordination 1 requiredgG NH 3NA, DIAZED 5SB, NEOZED 5SE: 250 A

— with type of coordination 2 requiredgG NH 3NA, DIAZED 5SB, NEOZED 5SE: 125 A

for short-circuit protection of the auxiliary switch requiredfuse 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

fastening methodscrew fixing

height142 mm

width177.5 mm

depth223 mm

— forwards10 mm

— backwards0 mm

— upwards10 mm

— downwards10 mm

— at the side10 mm

— forwards10 mm

— backwards0 mm

— upwards10 mm

— at the side10 mm

— downwards10 mm

— forwards10 mm

— backwards0 mm

— upwards10 mm

— downwards10 mm

— at the side10 mm

Connections/ Terminals

for main current circuitscrew-type terminals

for auxiliary and control circuitscrew-type terminals

at contactor for auxiliary contactsScrew-type terminals

of magnet coilscrew terminal

solid2x (1 ... 35 mm²), 1x (1 ... 50 mm²)

solid or stranded2x (1 ... 35 mm²), 1x (1 ... 50 mm²)

finely stranded with core end processing2x (1 ... 25 mm²), 1x (1 ... 35 mm²)

— solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)

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

for AWG cables for auxiliary contacts2x (20 ... 16), 2x (18 ... 14)

Safety related data

product function suitable for safety functionYes

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

Communication/ Protocol

product function bus communicationNo

protocol is supported AS-Interface protocolNo

product function control circuit interface with IO linkYes

Accessories 7

Genuine accessories that can be used with the Siemens 3RA2437-8XE32-1NB3 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
3RV2935-5A	Aksesuar · Plugs, adapters and terminals · infeed terminals
3RH2921-1DA02	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-1DA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1DA02	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1DA11	Aksesuar · Auxiliary switch · auxiliary switches
3RH2911-1DA20	Aksesuar · Auxiliary switch · auxiliary switches
3RH2921-1XA11-0MS0	Aksesuar · Auxiliary switch · auxiliary switches