Scroll image to enlarge

UEC3-18C

Industry IEC Contactors

UEC3-C series

We are here to help! Contact us if you have an inquiry or question.


Certificates:

Product Characteristics

The product adopts high-performance silver alloy contacts, with a long electrical life.
Wide range of operating voltage and reliable operation though there’s grid voltage fluctuation.
H-grade high-temperature resistant enameled wire, with more durable coils.
The coil supports up and down wire entry, meeting various wiring needs of customers.
Buffer optimization, less noise of electromagnetic system.
By installing the top dust cover and side dust stickers, the dust prevention is better.
Product miniaturization design, smaller volume.

Technical Parameters

Main 
Product SeriesUEC3
Product or Component TypeContactor
Device Short NameUEC3-18C
Contactor Application

Motor control 

Resistive load

Utilisation Category

AC-3

AC-4

AC-1

Poles Description3P
[Ue] Rated Operational Voltage Power circuit: ≤ 690 V AC 50/60Hz
[Ie] Rated Operational Current 

18 A (at ≤60 °C) at ≤ 400 V AC AC-3 for power circuit

15 A (at ≤60 °C) at ≤ 400 V AC AC-4 for power circuit

32 A (at ≤60 °C) at ≤ 690 V AC AC-1 for power circuit

[Us] Control Circuit Voltage 

(AC 50/60Hz)

Voltage (V):  24     36      48    110     220…230     380 
Code:        B7    CC7     E7    F7       M7          Q7   
Complementary 
Motor Power kW

4 kW at 220/230 V AC 50/60 Hz (AC-3)

7.5 kW at 380/400 V AC 50/60 Hz (AC-3)

10 kW at 660/690 V AC 50/60 Hz (AC-3)

Motor Power hp

1 hp at 110…120 V AC 50/60 Hz for 1 phase motors

2 hp at 200…208 V AC 50/60 Hz for 1 phase motors

3 hp at 220…240 V AC 50/60 Hz for 1 phase motors

5 hp at 200…208 V AC 50/60 Hz for 3 phases motors

5 hp at 220…240 V AC 50/60 Hz for 3 phases motors

10 hp at 440…480 V AC 50/60 Hz for 3 phases motors

15 hp at 550…600 V AC 50/60 Hz for 3 phases motors

Pole Contact Composition3 NO
[Ith] Conventional Free Air Thermal Current 

32 A (at ≤60 °C) for power circuit

10 A (at ≤60 °C) for signalling circuit

[Icw] Rated Short-time Withstand Current 

145 A ≤40 °C - 10 s for power circuit

84 A ≤40 °C - 1 min for power circuit

40 A ≤40 °C - 10 min for power circuit

Associated Fuse Rating

10 A gG for signalling circuit conforming to IEC 60947-5-1

32 A gG at ≤ 690 V coordination type 2 for power circuit

Average Impedance2.7 mΩ - Ith 50 Hz for power circuit
[Ui] Rated Insulation Voltage 

Power circuit: 690 V conforming to IEC 60947-4-1

Power circuit: 600 V UL Certified

Signalling circuit: 690 V conforming to IEC 60947-5-1

Signalling circuit: 600 V UL Certified

Overvoltage Category III
Pollution Degree3
[Uimp] Rated Impulse Withstand Voltage 6 kV conforming to IEC 60947
Mechanical Durability10 M cycles
Electrical Durability1.0 M cycles 18 A AC-3 at Ue ≤ 400 V
Control Dircuit TypeAC at 50/60 Hz standard
Coil TechnologyWithout built-in suppressor module
Control Circuit Voltage Limits

0.85...1.1 Us (-40…60 °C): operational AC 50/60 Hz

0.2...0.75 Us (-40…60 °C): drop-out AC 50/60 Hz

Inrush Power in VA70 VA 50/60 Hz (at 25 °C)
Hold-in Power Consumption in VA9 VA 50/60 Hz (at 25 °C)
Operating Time

Power circuit: 12...22 ms closing, 4...22 ms opening

Signalling circuit (NO): 15...26 ms closing, 4...22 ms opening

Signalling circuit (NC): 4...19 ms opening, 12...32 ms closing

Maximum Operating Rate

Electrical: 1200 cycs/h

Mechanical: 3600 cycs/h 

Connections - Terminals

Power circuit: screw clamp terminals 1 1…4 mm² (AWG 18…12)- cable stiffness: flexible without cable end

Power circuit: screw clamp terminals 2 1…4 mm² (AWG 18…12) - cable stiffness: flexible without cable end

Power circuit: screw clamp terminals 1 1…4 mm² (AWG 18…12) - cable stiffness: flexible with cable end

Power circuit: screw clamp terminals 2 1…2.5 mm² (AWG 18…14)- cable stiffness: flexible with cable end

Power circuit: screw clamp terminals 1 1…4 mm² (AWG 18…12)- cable stiffness: solid without cable end

Power circuit: screw clamp terminals 2 1…4 mm² (AWG 18…12) - cable stiffness: solid without cable end

Control circuit: screw clamp terminals 1 1…4 mm² (AWG 18…12)- cable stiffness: flexible without cable end

Control circuit: screw clamp terminals 2 1…4 mm² (AWG 18…12)- cable stiffness: flexible without cable end

Control circuit: screw clamp terminals 1 1…4 mm² (AWG 18…12) - cable stiffness: flexible with cable end

Control circuit: screw clamp terminals 2 1…2.5 mm² (AWG 18…14)- cable stiffness: flexible with cable end

Control circuit: screw clamp terminals 1 1…4 mm² (AWG 18…12) - cable stiffness: solid without cable end

Control circuit: screw clamp terminals 2 1…4 mm² (AWG 18…12) - cable stiffness: solid without cable end

Control circuit, Power circuit: M3.5, Terminal width≤8.1mm (0.318 in)

Tightening Torque

Power circuit: 10.7 lb.in (1.2 N·m)- on screw clamp terminals - with screwdriver flat Ø 6 mm

Power circuit: 10.7 lb.in (1.2 N·m)- on screw clamp terminals - with screwdriver Philips No 2

Control circuit: 10.7 lb.in (1.2 N·m)- on screw clamp terminals - with screwdriver flat Ø 6 mm

Control circuit: 10.7 lb.in (1.2 N·m)- on screw clamp terminals - with screwdriver Philips No 2

Auxiliary Contact Composition1NO,1NC
Minimum Switching Voltage24 V for signalling circuit
Minimum Switching Current 0.1A for signalling circuit
Insulation Resistance> 10 MΩ for signalling circuit
Mounting Support

Screw 

35mm DIN Rail

Environment 
Standards

GB/T 14048.4,GB/T 14048.5, IEC/EN 60947-4-1,IEC/EN 60947-5-1,

BS EN 60947-4-1,BS EN 60947-5-1,UL 60947-4-1,UL 60947-5-1

Product CertificationsCCC,CE,UKCA,VDE,UL (cULus LISTED)
IP Degree of ProtectionIP20 front face conforming to IEC 60529

Permissible Ambient Air

Temperature Around the Device

-40…60 °C for normal operating

60…70 °C with derating (for operation in the range of Us...1.1Us)

Storage: -60…80 °C

Operating Altitude0...3000 m without derating
Fire ResistanceCurrent-carrying parts:850 °C conforming to IEC 60695-2-11
Height74 mm
Width45 mm 
Depth80 mm
Net Weight0.31 kg
Packing Units 
Unit Type of Package 11 box
Number of Units in Package 11 pcs
Package 1 Height 8.3 cm
Package 1 Width 4.8 cm
Package 1 Length 7.8 cm
Package 1 Weight 0.36 kg
Unit type of Package 21 carton
Number of Units in Package 250 pcs
Package 2 Height 19.5 cm
Package 2 Width 26.0 cm
Package 2 Length 41.0 cm
Package 2 Weight 17.3 kg
Offer Sustainability 
REACH Regulation Conforming
EU RoHS Directive Conforming
Mercury Free Yes
China RoHS Regulation Conforming
RoHS Exemption Information Yes 
Contractual Warranty 
Warranty18 months

Dimensions

UEC3-06…25 (3P, AC Coil)  

AC Contactor:

Interlock Contactor:

Note: The unit is mm. The tolerance for mounting holes: ± 0.5; for other external dimensions: ± 1.5, unless otherwise specified.

Products of the same type
UEC3-06C

Industry IEC Contactors

UEC3-09C

Industry IEC Contactors

UEC3-12C

Industry IEC Contactors

UEC3-18C

Industry IEC Contactors

UEC3-25C

Industry IEC Contactors

UEC3-32C

Industry IEC Contactors