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Specification & Description
| Specification | Description |
|---|---|
| Part Number | LC1D18M7 |
| Manufacturer | Schneider |
| Product Type | Contactor |
| Contactor Application | Resistive load, Motor control |
| Utilisation Category | AC-1, AC-4, AC-3, AC-3e |
| Poles Description | 3P (3 NO) |
| Rated Operational Voltage | ≤690 V AC 25...400 Hz for power circuit, ≤300 V DC for power circuit |
| Rated Operational Current | 18 A at 140°F (60°C) for AC-3 power circuit, 32 A at 140°F (60°C) for AC-1 power circuit |
| Control Circuit Voltage | 220 V AC 50/60 Hz |
| Motor Power kW | Up to 10 kW at various voltages and AC-3, AC-4, AC-3e categories |
| Maximum Horse Power Rating | Up to 15 hp at various voltages for 3 phase motors |
| Pole Contact Composition | 3 NO |
| Rated Insulation Voltage | 690 V for power circuit, 600 V CSA and UL certified for power and signalling circuits |
| Rated Impulse Withstand Voltage | 6 kV according to IEC 60947 |
| Overvoltage Category | III |
| Protective Cover | Included |
| Auxiliary Contacts Type | Mechanically linked 1 NO + 1 NC according to IEC 60947-5-1, Mirror contact 1 NC according to IEC 60947-4-1 |
The Schneider LC1D18M7 is a high-performance contactor from the TeSys D series, renowned for its reliability and efficiency in managing motor operations and resistive loads. This non-reversing contactor is designed to handle a wide range of applications, making it a versatile choice for various industrial settings.
With a 3-pole configuration and a rated operational current of 18 A at less than 60°C, it can comfortably control power circuits up to 440 V AC in AC-3 utilisation category, ensuring smooth operation in demanding environments. The contactor is equipped with a 220 V AC 50/60 Hz coil, providing flexibility for integration into different electrical systems.
The LC1D18M7 boasts a robust design with a rated operational voltage of up to 690 V AC for power circuits, making it suitable for a variety of applications. Its motor power capacity ranges from 4 kW at 220-230 V AC to 10 kW at 500 V AC in AC-3 category, and up to 10 kW at 660-690 V AC in AC-3e category, delivering the necessary power for a broad spectrum of industrial motors.
This contactor is designed with safety and durability in mind, featuring a protective cover and an IP20 front face protection degree. Its compact dimensions ensure it can be easily accommodated within electrical panels without compromising on space.
The LC1D18M7 is a testament to Schneider Electric's commitment to quality and performance, offering a reliable solution for industrial control applications where precision and longevity are paramount.
Commonly Asked Questions
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Frequently Asked Questions
What type of applications is this contactor suitable for?
The TeSys D contactor is designed for a wide range of applications including resistive loads and motor control. It's suitable for utilisation categories AC-1, AC-3, AC-4, and AC-3e, making it versatile for various industrial uses.
Can this contactor be used with different power supply voltages?
Yes, this contactor is rated for a control circuit voltage of 220 V AC at 50/60 Hz, and it can handle power circuit operational voltages up to 690 V AC and 300 V DC, accommodating a variety of electrical systems.
What is the rated operational current of this contactor?
The contactor has a rated operational current of 18 A for AC-3 power circuits at 440 V AC, and 32 A for AC-1 power circuits, ensuring reliable performance for connected loads.
What are the dimensions of the contactor?
The contactor has a height of 77 mm, a width of 45 mm, and a depth of 86 mm, making it compact and suitable for installation in various environments.
Is the contactor environmentally friendly?
Yes, it is a Green Premium product, which means it complies with the latest environmental regulations and standards, including REACh and RoHS, and is free of harmful substances like mercury and certain heavy metals.
What is the thermal current rating for this contactor?
The contactor has a conventional free air thermal current rating of 10 A for signalling circuits and 32 A for power circuits, ensuring it can handle the thermal demands of most applications.
Does this contactor come with auxiliary contacts?
Yes, it includes mechanically linked auxiliary contacts, with 1 normally open (NO) and 1 normally closed (NC) contact, providing additional functionality for signalling and interlocking.
What is the power dissipation per pole for this contactor?
The power dissipation per pole is 2.5 W for AC-1 and 0.8 W for AC-3 and AC-3e, which helps in determining the thermal load and cooling requirements in an enclosure.
How does the contactor handle short-time withstand current?
The contactor is rated for a short-time withstand current of 145 A for 10 seconds at 40°C for power circuits, ensuring robust performance during short-term overcurrent events.
What is the insulation resistance of this contactor?
The contactor boasts an insulation resistance greater than 10 MOhm for signalling circuits, providing a high level of safety and reliability in electrical isolation.
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