104-C37UD02

IEC 37 A Reversing Contactor

Name: IEC 37 A Reversing Contactor
Brand: Rockwell Automation
SKU: 104-C37UD02

Serial #:

Lifecycle status: Discontinued

Rockwell Automation announces that as of June 15, 2026, the IEC 37 A Reversing Contactor will be discontinued and no longer available for sale. Customers are encouraged to remove references to the affected product(s)

Discontinued Date: June 15, 2026 Replacement Category: Engineering Replacement Replacement Product: 104-E38KD22 [https://www.rockwellautomation.com/en-us/products/details.104-E38KD22.html]

Product at a glance

Replacement Available

Description

104-C Reversing Contactors, 37A, Load Side, 110V 50Hz / 120V 60Hz, 0 N.O. 1 N.C.

Lifecycle status: Discontinued

Discontinued Date: June 15, 2026 Replacement Category: Engineering Replacement Replacement Product: 104-E38KD22 [https://www.rockwellautomation.com/en-us/products/details.104-E38KD22.html]

Product at a glance

Replacement Available

Description

104-C Reversing Contactors, 37A, Load Side, 110V 50Hz / 120V 60Hz, 0 N.O. 1 N.C.

Unique Product Identifier	104-C37UD02
UPC	885630277127
Standard Warranty Duration	1 year See details
Country of Origin	Switzerland

Coil Voltage	110V 50 Hz / 120V 60 Hz.
Maximum Load Current	37 A

BS88 fuses current rating	Type 2 (per IEC 60947-4-1): 80A @ 415V, 65 kA available fault current
Capacitance, max	540 µF @ short-circuit current of 50 kA
Coil consumption pick-up (avg/peak)	14/22 W @ DC (electronic-EA)
Coil consumption, hold-in	3 W @ DC (electronic-EA)
Coil consumption, pick-up	105VA @ 50 Hz, 60 Hz, 50/60 Hz
Coil insulation class	Class F per IEC 60085, UL Class 105
Coil terminal conductor cross section	1…4 mm² @ 2 conductor
Contacts	3 power poles with internal NO or NC auxiliary contact or 4 power poles (9...23 A), Optional front-or side mounted 1-2 or 4-pole external auxiliary contact block
Conventional coil type	True
Cross section per UL/CSA	16
Current (Ie), max	97 A
DIN fuses (gG, gL) current rating	Type 2 (per IEC 60947-4-1): 80A @ 690V, 50 kA available fault current
Electronic-EI coil type	True
Function	Reversing contactor
General purpose current (enclosed)	60 A per UL/CSA
Main current circuit resistance	2 mohm
Operating limits, dropout	(0.3...0.6) x Us @ 50 Hz, 60 Hz, 50/60 Hz
Operating limits, pick-up	(0.85...1.1) x Us @ 50 Hz, 60 Hz, 50/60 Hz
Operating time	15…30 ms @ AC closing delay
Power dissipation	8.2 W @ 400V, AC-3, Ie
Rated coil frequency	AC 50/60 Hz, DC
Rated control supply voltage at AC 50 Hz	110 V
Rated control supply voltage at AC 60 Hz	120 V
Rated current (enclosed)	34A @ 115V, 1-phase per UL/CSA
Rated filament current	37A @ 230/240V, AC-5b
Rated impulse voltage withstand (Uimp)	6 kV
Rated isolation voltage (Ui)	690V @ IEC
Rated operational current (Ie)	66 A @ ≤240V, Star-Delta starting (50 Hz)
Rated operational current for contactor at elevator duty (UL/CSA)	28.0A @ 230V
Rated operational power (Pe)	78 kW @ 690V, AC-1 active power load (50 Hz), ambient temperature 60 °C
Rated operational power for contactor at elevator duty (UL/CSA)	7.5Hp @ 200V
Rated operational power for contactor at wye-delta	40Hp @ 575V, 60 Hz
Rated power (enclosed)	5Hp @ 230V, 1-phase per UL/CSA
Rated voltage (Ue)	690V @ AC, 50/60 Hz
Rating for switching AC motors	3-poles: 5Hp @ 230V (AC-2, AC-3, AC-4), 1-phase (60 Hz)
Short time withstand (Icw)	304A @ 10s, 60 °C
Switching frequency, max	200 ops/h
Switching of 3-phase Capacitors	Single capacitor: 25 kVAR @ 690V, AC-6b 50 Hz, 60 °C (Inductance of leads between capacitors in parallel: min. 6 µH)
Switching of DC loads	3-Poles in series: 45A @ 48/60V (Shunt-wound motors starting, reverse current braking, reversing, stepping DC-3 at 60 °C)
Switching of hermetically sealed cooling compressor motors	45A @ 500V, AC-8a (manual reset of overload release (50 Hz))
Switching of lamps	Gas discharge lA, open: 45A @ 40°C (104 °F), AC-5a
Switching of low inductive loads	45A @ 440V, AC-7a per IEC 61095 (50 Hz)
Switching of power transformers	Apparent power: 8.3 kVA @ 240V, AC-6a 60 Hz (n = 30)
Total power dissipation	DC control (electronic): 9.9 W @ 400V, AC-3, Ie
UL class J and CSA HRCI-J fuses rating	50A @ 100kA available fault current per UL 508 and CSA 22.2 No. 14
UL class K5 and RK5 fuses rating	125A @ 600V, 5 kA available fault current per UL 508 and CSA 22.2 No. 14
UL inverse-time circuit breaker	50 A @ 600Y/347V @ 25kA available fault current per UL 508 and CSA 22.2 No. 14
Voltage type for actuating	AC

Altitude of installation site, max	2000 m (NN), per IEC60947-1
Ambient temperature	Storage: -55...80 (-67...176)
Auxiliary contacts	0 NO, 1 NC
Protection against accidental contact	Finger-and back-of-hand proof per VDE0106, part 100
Protection class auxiliary contact	IP2X

Mechanical

Coil termination	Load side connection
Conductor cross section	Main contacts, 2 conductor: 2.5…16 mm²
Lifespan	Mechanical DC control: 13000000 ops
Recommended torque	9 in-lb
Shock resistance	IEC 60068-2-27
Type of electrical connection of main circuit	Screw connection
Vibration resistance	IEC 60068-2-6
Weight	1.14 kg (2.51 lbs) reverse @ DC (electronic-EW, EY, ED, EA)

Construction

Features	Panel mounting or mounting on 35 mm DIN rail, AC or DC coil control, Reversible coil terminals (line or load side), Common accessories, Made of environmentally friendly materials
Optional accessories	Front or side-mount auxiliary contacts, Surge suppressors, Electronic or pneumatic timers, Mechanical interlocks, Mechanical latches
Optional overload relays	Electronic or bimetallic
Options	Empty

Drawings
3-Dimensional STEP model (STP)	Download (ZIP)
Product Drawing	Drawing (DXF)

Drawings
3-Dimensional STEP model (STP) Download (ZIP)
Product Drawing Drawing (DXF)

General	Publication
Product Cutsheet	--

Technical Data	Publication
100-td013_-en-p	100-TD013

Looking for more documentation?

Find curated technical documentation for this product in the Technical Documentation Center, or search our full Literature Library.

Search the Literature Library

This product was certified with the above certifications as of 2026-06-23. Products sold before or after this date might carry different certifications. Please review the product label to check for the certifications your specific product carries.

Looking for certification documents?
Explore certifications for this product and more in our comprehensive Literature Library.

Search the Literature Library

Regulatory Information

EU Importer Address	Rockwell Automation N.V Pegasus Park De Kleetlaan 12A 1831 Diegem Belgium
EU Authorized Representative Address	Rockwell Automation N.V Pegasus Park De Kleetlaan 12A 1831 Diegem Belgium

Items Per Page:

Technotes

Looking for more Technotes?

Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.

Search Knowledgebase

Overview

Unique Product Identifier	104-C37UD02
UPC	885630277127
Standard Warranty Duration	1 year See details
Country of Origin	Switzerland

Electrical & Connectivity

Coil Voltage	110V 50 Hz / 120V 60 Hz.
Maximum Load Current	37 A

BS88 fuses current rating	Type 2 (per IEC 60947-4-1): 80A @ 415V, 65 kA available fault current
Capacitance, max	540 µF @ short-circuit current of 50 kA
Coil consumption pick-up (avg/peak)	14/22 W @ DC (electronic-EA)
Coil consumption, hold-in	3 W @ DC (electronic-EA)
Coil consumption, pick-up	105VA @ 50 Hz, 60 Hz, 50/60 Hz
Coil insulation class	Class F per IEC 60085, UL Class 105
Coil terminal conductor cross section	1…4 mm² @ 2 conductor
Contacts	3 power poles with internal NO or NC auxiliary contact or 4 power poles (9...23 A), Optional front-or side mounted 1-2 or 4-pole external auxiliary contact block
Conventional coil type	True
Cross section per UL/CSA	16
Current (Ie), max	97 A
DIN fuses (gG, gL) current rating	Type 2 (per IEC 60947-4-1): 80A @ 690V, 50 kA available fault current
Electronic-EI coil type	True
Function	Reversing contactor
General purpose current (enclosed)	60 A per UL/CSA
Main current circuit resistance	2 mohm
Operating limits, dropout	(0.3...0.6) x Us @ 50 Hz, 60 Hz, 50/60 Hz
Operating limits, pick-up	(0.85...1.1) x Us @ 50 Hz, 60 Hz, 50/60 Hz
Operating time	15…30 ms @ AC closing delay
Power dissipation	8.2 W @ 400V, AC-3, Ie
Rated coil frequency	AC 50/60 Hz, DC
Rated control supply voltage at AC 50 Hz	110 V
Rated control supply voltage at AC 60 Hz	120 V
Rated current (enclosed)	34A @ 115V, 1-phase per UL/CSA
Rated filament current	37A @ 230/240V, AC-5b
Rated impulse voltage withstand (Uimp)	6 kV
Rated isolation voltage (Ui)	690V @ IEC
Rated operational current (Ie)	66 A @ ≤240V, Star-Delta starting (50 Hz)
Rated operational current for contactor at elevator duty (UL/CSA)	28.0A @ 230V
Rated operational power (Pe)	78 kW @ 690V, AC-1 active power load (50 Hz), ambient temperature 60 °C
Rated operational power for contactor at elevator duty (UL/CSA)	7.5Hp @ 200V
Rated operational power for contactor at wye-delta	40Hp @ 575V, 60 Hz
Rated power (enclosed)	5Hp @ 230V, 1-phase per UL/CSA
Rated voltage (Ue)	690V @ AC, 50/60 Hz
Rating for switching AC motors	3-poles: 5Hp @ 230V (AC-2, AC-3, AC-4), 1-phase (60 Hz)
Short time withstand (Icw)	304A @ 10s, 60 °C
Switching frequency, max	200 ops/h
Switching of 3-phase Capacitors	Single capacitor: 25 kVAR @ 690V, AC-6b 50 Hz, 60 °C (Inductance of leads between capacitors in parallel: min. 6 µH)
Switching of DC loads	3-Poles in series: 45A @ 48/60V (Shunt-wound motors starting, reverse current braking, reversing, stepping DC-3 at 60 °C)
Switching of hermetically sealed cooling compressor motors	45A @ 500V, AC-8a (manual reset of overload release (50 Hz))
Switching of lamps	Gas discharge lA, open: 45A @ 40°C (104 °F), AC-5a
Switching of low inductive loads	45A @ 440V, AC-7a per IEC 61095 (50 Hz)
Switching of power transformers	Apparent power: 8.3 kVA @ 240V, AC-6a 60 Hz (n = 30)
Total power dissipation	DC control (electronic): 9.9 W @ 400V, AC-3, Ie
UL class J and CSA HRCI-J fuses rating	50A @ 100kA available fault current per UL 508 and CSA 22.2 No. 14
UL class K5 and RK5 fuses rating	125A @ 600V, 5 kA available fault current per UL 508 and CSA 22.2 No. 14
UL inverse-time circuit breaker	50 A @ 600Y/347V @ 25kA available fault current per UL 508 and CSA 22.2 No. 14
Voltage type for actuating	AC

Compliance & Environment

Altitude of installation site, max	2000 m (NN), per IEC60947-1
Ambient temperature	Storage: -55...80 (-67...176)
Auxiliary contacts	0 NO, 1 NC
Protection against accidental contact	Finger-and back-of-hand proof per VDE0106, part 100
Protection class auxiliary contact	IP2X

Physical Characteristics

Mechanical

Coil termination	Load side connection
Conductor cross section	Main contacts, 2 conductor: 2.5…16 mm²
Lifespan	Mechanical DC control: 13000000 ops
Recommended torque	9 in-lb
Shock resistance	IEC 60068-2-27
Type of electrical connection of main circuit	Screw connection
Vibration resistance	IEC 60068-2-6
Weight	1.14 kg (2.51 lbs) reverse @ DC (electronic-EW, EY, ED, EA)

Construction

Features	Panel mounting or mounting on 35 mm DIN rail, AC or DC coil control, Reversible coil terminals (line or load side), Common accessories, Made of environmentally friendly materials
Optional accessories	Front or side-mount auxiliary contacts, Surge suppressors, Electronic or pneumatic timers, Mechanical interlocks, Mechanical latches
Optional overload relays	Electronic or bimetallic
Options	Empty

Drawings

Drawings
3-Dimensional STEP model (STP)	Download (ZIP)
Product Drawing	Drawing (DXF)

Drawings
3-Dimensional STEP model (STP) Download (ZIP)
Product Drawing Drawing (DXF)

Documents

Product Cutsheet General
--

100-td013_-en-p Technical Data
100-TD013

General	Publication
Product Cutsheet	--
Technical Data	Publication
100-td013_-en-p	100-TD013

Looking for more documentation?

Find curated technical documentation for this product in the Technical Documentation Center, or search our full Literature Library.

Search the Literature Library

Certifications

${name=IECEE Scheme, link=http://literature.rockwellautomation.com/idc/groups/literature/documents/ct/100-ct173_-en-e.pdf}$

Looking for certification documents?
Explore certifications for this product and more in our comprehensive Literature Library.

Search the Literature Library

Regulatory Information

EU Importer Address	Rockwell Automation N.V Pegasus Park De Kleetlaan 12A 1831 Diegem Belgium
EU Authorized Representative Address	Rockwell Automation N.V Pegasus Park De Kleetlaan 12A 1831 Diegem Belgium

Accessories

Items Per Page:

Alternative Products

Items Per Page:

Technotes

Technotes

Looking for more Technotes?

Find questions and answers from Rockwell Automation technical experts for this product in our Knowledgebase.

Search Knowledgebase