Description

Schneider LC1D18BD Contactor: A Comprehensive Guide

Introduction

In this digital era, electrical systems play a pivotal role in various industries. Among the essential components of these systems is the contactor. Schneider Electric, a renowned name in the electrical industry, offers a wide range of contactors, including the LC1D18BD model. Let’s delve into the intricacies of the Schneider LC1D18BD contactor and understand its significance in electrical applications.

Understanding Contactor Basics

Before diving into specifics, let’s grasp the fundamentals of contactors. A contactor is an electromechanical device used to control the flow of electricity in a circuit. It consists of contacts that open and close to allow or interrupt the electrical current. Contactors are commonly employed in industrial and commercial settings to manage heavy loads efficiently.

Features of Schneider LC1D18BD Contactor

The Schneider LC1D18BD contactor boasts several features that set it apart. With its compact design and high-performance capabilities, it’s ideal for a variety of applications. Some notable features include:

  • Compact Design: Despite its robust functionality, the LC1D18BD contactor is designed to occupy minimal space, making it suitable for installations where space is limited.
  • High Switching Capacity: This contactor can handle heavy loads with ease, thanks to its high switching capacity, ensuring reliable performance even in demanding environments.
  • Built-in Auxiliary Contacts: The LC1D18BD model comes equipped with auxiliary contacts, allowing for enhanced control and monitoring of electrical circuits.
  • Coil Voltage Options: Schneider Electric offers a range of coil voltage options for the LC1D18BD contactor, providing flexibility to suit various voltage requirements.

Applications of Schneider LC1D18BD Contactor

The versatility of the Schneider LC1D18BD contactor makes it suitable for a wide range of applications, including:

  • Motor control in industrial machinery
  • HVAC systems
  • Lighting control
  • Elevator systems
  • Conveyor belts
  • And more

Installation Process

Installing the Schneider LC1D18BD contactor is straightforward, but it’s crucial to follow the manufacturer’s guidelines to ensure proper operation and safety. Here’s a basic outline of the installation process:

  1. Selecting the Mounting Location: Choose a suitable location for installing the contactor, considering factors such as accessibility and ventilation.
  2. Wiring Connections: Connect the control circuit wires to the appropriate terminals on the contactor, ensuring proper polarity and tight connections.
  3. Mounting the Contactor: Secure the contactor in place using the provided mounting screws or brackets.
  4. Testing: After installation, perform a thorough test to verify the functionality of the contactor and ensure that it operates as expected.

Maintenance Tips

To ensure optimal performance and longevity of the Schneider LC1D18BD contactor, regular maintenance is essential. Here are some maintenance tips to follow:

  • Keep it Clean: Periodically clean the contactor to remove dust and debris that can affect its performance.
  • Inspect for Wear and Tear: Check the contacts and other components for signs of wear and tear, and replace any damaged parts promptly.
  • Tighten Loose Connections: Ensure that all wiring connections are tight to prevent overheating and electrical faults.

Troubleshooting Common Issues

Despite its reliability, the Schneider LC1D18BD contactor may encounter occasional issues. Here are some common problems and troubleshooting steps:

  1. Failure to Energize: Check the power supply and control circuit connections to ensure proper voltage and continuity.
  2. Overheating: Inspect for any obstructions or poor ventilation around the contactor and address them accordingly.
  3. Contact Welding: If the contacts become welded due to high current or arcing, replace the contactor to prevent further damage.

 

Additional information

brands

Schneider Electric

Specifications

Main
Range of product TeSys Deca
Product or component type Contactor
Device short name LC1D
Contactor application Motor control Resistive load
Utilisation category AC-4 AC-1 AC-3 AC-3e
Poles description 3P
[Ue] rated operational voltage Power circuit: <= 690 V AC 25...400 Hz Power circuit: <= 300 V DC
[Ie] rated operational current 18 A (at <60 °C) at <= 440 V AC AC-3 for power circuit 32 A (at <60 °C) at <= 440 V AC AC-1 for power circuit 18 A (at <60 °C) at <= 440 V AC AC-3e for power circuit
[Uc] control circuit voltage 24 V DC
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) 9 kW at 415...440 V AC 50/60 Hz (AC-3) 10 kW at 500 V AC 50/60 Hz (AC-3) 10 kW at 660...690 V AC 50/60 Hz (AC-3) 4 kW at 400 V AC 50/60 Hz (AC-4) 4 kW at 220...230 V AC 50/60 Hz (AC-3e) 7.5 kW at 380...400 V AC 50/60 Hz (AC-3e) 9 kW at 415...440 V AC 50/60 Hz (AC-3e) 10 kW at 500 V AC 50/60 Hz (AC-3e) 10 kW at 660...690 V AC 50/60 Hz (AC-3e)
Motor power hp 1 hp at 115 V AC 50/60 Hz for 1 phase motors 3 hp at 230/240 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 230/240 V AC 50/60 Hz for 3 phases motors 10 hp at 460/480 V AC 50/60 Hz for 3 phases motors 15 hp at 575/600 V AC 50/60 Hz for 3 phases motors
Compatibility code LC1D
Pole contact composition 3 NO
Protective cover With
[Ith] conventional free air thermal current 10 A (at 60 °C) for signalling circuit 32 A (at 60 °C) for power circuit
Irms rated making capacity 140 A AC for signalling circuit conforming to IEC 60947-5-1 250 A DC for signalling circuit conforming to IEC 60947-5-1 300 A at 440 V for power circuit conforming to IEC 60947
Rated breaking capacity 300 A at 440 V for power circuit conforming to IEC 60947
[Icw] rated short-time withstand current 145 A 40 °C - 10 s for power circuit 240 A 40 °C - 1 s for power circuit 40 A 40 °C - 10 min for power circuit 84 A 40 °C - 1 min for power circuit 100 A - 1 s for signalling circuit 120 A - 500 ms for signalling circuit 140 A - 100 ms for signalling circuit
Associated fuse rating 10 A gG for signalling circuit conforming to IEC 60947-5-1 50 A gG at <= 690 V coordination type 1 for power circuit 35 A gG at <= 690 V coordination type 2 for power circuit
Average impedance 2.5 mOhm - Ith 32 A 50 Hz for power circuit
Power dissipation per pole 2.5 W AC-1 0.8 W AC-3 0.8 W AC-3e
[Ui] rated insulation voltage Power circuit: 690 V conforming to IEC 60947-4-1 Power circuit: 600 V CSA certified Power circuit: 600 V UL certified Signalling circuit: 690 V conforming to IEC 60947-1 Signalling circuit: 600 V CSA certified Signalling circuit: 600 V UL certified
Overvoltage category III
Pollution degree 3
[Uimp] rated impulse withstand voltage 6 kV conforming to IEC 60947
Safety reliability level B10d = 1369863 cycles contactor with nominal load conforming to EN/ISO 13849-1 B10d = 20000000 cycles contactor with mechanical load conforming to EN/ISO 13849-1
Mechanical durability 30 Mcycles
Electrical durability 1.65 Mcycles 18 A AC-3 at Ue <= 440 V 1 Mcycles 32 A AC-1 at Ue <= 440 V 1.65 Mcycles 18 A AC-3e at Ue <= 440 V
Control circuit type DC standard
Coil technology With integral suppression device
Control circuit voltage limits 0.1...0.25 Uc (-40…70 °C):drop-out DC 0.7...1.25 Uc (-40…60 °C):operational DC 1...1.25 Uc (60…70 °C):operational DC
Inrush power in W 5.4 W (at 20 °C)
Hold-in power consumption in W 5.4 W at 20 °C
Operating time 63 ±15 % ms closing 20 ±20 % ms opening
Time constant 28 ms
Maximum operating rate 3600 cyc/h 60 °C
Maximum operating rate 3600 cyc/h at 60 °C
Connections - terminals Control circuit: screw clamp terminals 1 1…4 mm² - cable stiffness: flexible without cable end Control circuit: screw clamp terminals 2 1…4 mm² - cable stiffness: flexible without cable end Control circuit: screw clamp terminals 1 1…4 mm² - cable stiffness: flexible with cable end Control circuit: screw clamp terminals 2 1…2.5 mm² - cable stiffness: flexible with cable end Control circuit: screw clamp terminals 1 1…4 mm² - cable stiffness: solid without cable end Control circuit: screw clamp terminals 2 1…4 mm² - cable stiffness: solid without cable end Power circuit: screw clamp terminals 1 1.5…6 mm² - cable stiffness: flexible without cable end Power circuit: screw clamp terminals 2 1.5…6 mm² - cable stiffness: flexible without cable end Power circuit: screw clamp terminals 1 1…6 mm² - cable stiffness: flexible with cable end Power circuit: screw clamp terminals 2 1…4 mm² - cable stiffness: flexible with cable end Power circuit: screw clamp terminals 1 1.5…6 mm² - cable stiffness: solid without cable end Power circuit: screw clamp terminals 2 1.5…6 mm² - cable stiffness: solid without cable end
Tightening torque Power circuit: 1.7 N.m - on screw clamp terminals - with screwdriver flat Ø 6 mm Power circuit: 1.7 N.m - on screw clamp terminals - with screwdriver Philips No 2 Control circuit: 1.7 N.m - on screw clamp terminals - with screwdriver flat Ø 6 mm Control circuit: 1.7 N.m - on screw clamp terminals - with screwdriver Philips No 2 Control circuit: 1.7 N.m - on screw clamp terminals - with screwdriver pozidriv No 2 Power circuit: 1.7 N.m - on screw clamp terminals - with screwdriver pozidriv No 2
Auxiliary contact composition 1 NO + 1 NC
Auxiliary contacts type type mechanically linked 1 NO + 1 NC conforming to IEC 60947-5-1 type mirror contact 1 NC conforming to IEC 60947-4-1
Signalling circuit frequency 25...400 Hz
Minimum switching voltage 17 V for signalling circuit
Minimum switching current 5 mA for signalling circuit
Insulation resistance > 10 MOhm for signalling circuit
Non-overlap time 1.5 ms on de-energisation between NC and NO contact 1.5 ms on energisation between NC and NO contact
Mounting support Plate Rail
Environment
Standards CSA C22.2 No 14 EN 60947-4-1 EN 60947-5-1 IEC 60947-4-1 IEC 60947-5-1 UL 60947-4-1 IEC 60335-1:Clause 30.2 IEC 60335-2-40:Annex JJ UL 60335-2-40:Annex JJ CSA C22.2 No 60947-4-1
Product certifications UL CCC CSA Marine UKCA EAC CB Scheme
IP degree of protection IP20 front face conforming to IEC 60529
Protective treatment TH conforming to IEC 60068-2-30
Climatic withstand conforming to IACS E10 exposure to damp heat conforming to IEC 60947-1 Annex Q category D exposure to damp heat
Permissible ambient air temperature around the device -40…60 °C 60…70 °C with derating
Operating altitude 0...3000 m
Fire resistance 850 °C conforming to IEC 60695-2-1
Flame retardance V1 conforming to UL 94
Mechanical robustness Vibrations contactor open (2 Gn, 5...300 Hz) Vibrations contactor closed (4 Gn, 5...300 Hz) Shocks contactor open (10 Gn for 11 ms) Shocks contactor closed (15 Gn for 11 ms)
Height 77 mm
Width 45 mm
Depth 95 mm
Net weight 0.49 kg
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Height 5.000 cm
Package 1 Width 9.000 cm
Package 1 Length 11.000 cm
Package 1 Weight 522.500 g
Unit Type of Package 2 S02
Number of Units in Package 2 15
Package 2 Height 15.000 cm
Package 2 Width 30.000 cm
Package 2 Length 40.000 cm
Package 2 Weight 8.108 kg
Unit Type of Package 3 P06
Number of Units in Package 3 240
Package 3 Height 75.000 cm
Package 3 Width 60.000 cm
Package 3 Length 80.000 cm
Package 3 Weight 137.080 kg
Contractual warranty
Warranty 18 months

Main documents

Main documents

Datasheet Download Datasheet
Product datasheet LC1D18BD 
Instruction sheet
Download
Catalogue
Download
CAD Files
Download
Environmental disclosure Download

Main documents

Datasheet Download Datasheet
Product datasheet LC1D18BD 
Instruction sheet
Download
Catalogue
Download
CAD Files
Download
Environmental disclosure Download

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