LS AC Magnetic Contactor CONTACTOR,MC-18A 24VDC,LS
CONTACTORMC-18A-24VDCLS
LS Electric
LS AC Magnetic Contactor CONTACTOR,MC-18A 24VDC,LS
Home / Contactors / LS Metasol MC Series / MC-18a 24VDC Contactor Need LS CONTACTOR,MC-18A 24VDC,LS? AC Magnetic Contactor for Low-voltage motor control and in…
Specifications
| Brand | LS Electric |
|---|---|
| Model Number | MC-18a 24VDC |
| Official Product Name | LS Metasol MC-18a 24VDC Contactor |
| Applicable System | Low-voltage motor control and industrial automation panels |
| Product Type | AC Magnetic Contactor (3-pole, DC coil) |
| Equivalent Standard | IEC 60947-4-1 |
| Product Status | In Production |
| Rated Operational Current (AC-3, 380/440V) | 18 A |
| Rated Operational Voltage (Ue) | 690 V |
| Rated Insulation Voltage (Ui) | 690 V |
| Rated Frequency | 50/60 Hz |
| Coil Voltage (Uc) | 24 V DC |
| Rated Impulse Withstand Voltage (Uimp) | 6 kV |
| Thermal Current (AC-1) | 32 A |
| Motor Power (AC-3, 380/440V) | 7.5 kW |
| Mechanical Durability | 15 million operations |
| Electrical Durability (AC-3) | 2.5 million operations |
| Maximum Operating Rate (AC-3) | 1800 operations/hour |
| Terminal Type | Screw clamp |
| Mounting | DIN rail / surface |
| Protection Degree | IP20 |
| Ambient Temperature | -5 to +60 deg C |
| Frame Size | 18AF |
| Auxiliary Contact | 1NO |
| Matching Overload Relay | MT-12 |
| Weight | 0.40 kg (DC control) |
| Dimensions (W x H x D) | 45 x 73.5 x 96.6 mm |
| Standards | IEC 60947-4-1, UL 508, CCC, RoHS |
| Number of Poles | 3 (3NO main) |
Product Description
This variant uses a 24V DC control coil and features the Metasol sealed arc-free design with one-touch DIN-rail mounting and a built-in auxiliary contact. The LS Metasol MC-18a is a compact 18AF-frame 3-pole AC magnetic contactor rated 18A under AC-3 duty (690V) and 32A under AC-1.
Basic Product Information
- Sealed structure prevents arc exposure, improving operator safety
- Screw clamp terminals with one-touch 35mm DIN-rail mounting
- Built-in 1NO auxiliary contact as standard for control feedback
- 24V DC control coil for PLC and DC-control systems
- High durability: 15 million mechanical and 2.5 million electrical operations
- Compliant with IEC 60947-4-1, UL 508, CCC and RoHS
- Compact 18AF frame with a 45 x 73.5 mm footprint saves control-panel space
Technical Specifications
Version & Model Difference
- The MC-18a ('a' type) provides a built-in 1NO auxiliary contact, whereas the 'b' type adds 1NO+1NC. This 18AF frame unit is the 24V DC coil variant; a 220V AC coil version is also available.
Application Scenarios
- Motor starting and control for pumps, fans and compressors
- HVAC and building automation control panels
- Conveyor and production machinery
- General-purpose AC load switching driven by DC control circuits
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Frequently Asked Questions
What is the rated current of the LS MC-18a contactor?
Under AC-3 duty at 380/440V the MC-18a is rated 18A (7.5 kW); under AC-1 resistive duty the thermal current is 32A.
What coil voltage does this MC-18a use?
This variant uses a 24V DC control coil. A 220V AC coil version is available within the same 18AF frame.
Which overload relay is compatible with the MC-18a?
The MC-18a pairs with the LS Metasol MT-12 thermal overload relay, which can be direct-mounted for compact motor protection.
How is the MC-18a mounted and wired?
It mounts on a standard 35mm DIN rail or by screw fixing and uses screw clamp terminals. Protection rating is IP20 with a sealed, arc-free structure.
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