MT-32(9-13A)
LS Thermal Overload Relay MT-32(9-13A)
LS Electric
LS Thermal Overload Relay MT-32(9-13A)
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Specifications
| Brand | LS (LS Electric, formerly LG Industrial Systems) |
|---|---|
| Model Number | MT-32(9-13A) |
| Official Product Name | Thermal Overload Relay, Metasol Series |
| Applicable System | Motor control centers, industrial machinery, HVAC systems |
| Product Type | Thermal Overload Relay |
| Equivalent Standard | IEC 60947-4-1, UL 508 |
| Product Status | In Stock |
| Rated Insulation Voltage (Ui) | 690 V AC |
| Rated Operational Voltage (Ue) | Up to 690 V AC |
| Trip Class | Class 10A |
| Phase Loss Sensitivity | Yes (per IEC 60947-4-1) |
| Reset Mode | Manual / Auto (selectable) |
| Ambient Temperature (Operation) | -20°C to +55°C (with compensation) |
| Terminal Capacity | Screw terminals, up to 10 mm² (solid/stranded) |
| Mounting | Direct on contactor or 35mm DIN rail |
| Protection Degree | IP20 |
| Electrical Endurance | 100,000 operations (typical) |
| Standards | IEC 60947-4-1, UL 508 |
| Adjustable Current Range | 9 - 13 A |
Product Description
It is part of the LS (formerly LG Industrial Systems) Metasol series, widely used in industrial motor control panels. The relay features a bimetallic strip mechanism that accurately simulates motor heating, providing reliable protection in ambient temperatures up to 55°C. Its compact design allows direct mounting to LS magnetic contactors (e.g., GMC series) or independent installation via terminal blocks. This model covers an adjustable current range of 9 to 13 amperes, making it suitable for motors rated approximately 4.5 to 6.5 kW at 400V AC. The relay offers a trip class of 10A, ensuring fast response to locked rotor conditions while allowing normal starting currents. It includes a manual/auto reset selector, a test button, and a stop button for convenient operation and troubleshooting. The MT-32 is designed to meet IEC 60947-4-1 and UL 508 standards, ensuring global acceptance. With a robust construction and high electrical endurance, the MT-32(9-13A) ensures long service life even in harsh industrial environments. Its screw terminals accept wires up to 10 mm², and the device can be installed on 35mm DIN rails or directly onto contactors. The relay is a direct replacement for older LG GTH-32 models and is compatible with LS GMC-32, GMC-40, and GMC-50 contactors, making it a versatile choice for panel builders and maintenance teams. The LS MT-32(9-13A) is a thermal overload relay designed for protecting three-phase AC motors against overload, phase loss, and prolonged starting conditions.
Basic Product Information
- Trip class 10A for fast response to locked rotor conditions
- Manual/auto reset selector for flexible operation
- Test and stop buttons for easy commissioning and troubleshooting
- Direct mounting to LS GMC series contactors or independent installation
- Phase loss protection and ambient temperature compensation
- Compact design with IP20 protection degree
- Adjustable current range 9-13A for precise motor protection
Technical Specifications
Version & Model Difference
The MT-32 series is the successor to the older LG GTH-32 series. The MT-32(9-13A) features a more compact design, improved ambient temperature compensation, and a wider range of compatible contactors. Compared to earlier versions, it offers a higher degree of protection (IP20) and meets the latest IEC standards. The current range 9-13A is specifically calibrated for motors in the 4-6.5 kW range at 400V, whereas other MT-32 variants cover different ranges (e.g., 1.6-2.5A, 4-6A, 18-25A).
Application Scenarios
- LS MC-22B Contactor (22A, 3-Pole, 690V AC)
- LS RELAY MT32 (12-18A) - Original Industrial Power Relay
- LS RELAY MT-32 (1.6-2.5A) - Industrial Overload Relay
- LS RELAY MT-32 (4-6A) Industrial Control Relay
- LS RELAY MT-32 (6-9A) - Original Industrial Power Relay
- LS RELAY MT-32 (9-13A) - Thermal Overload Relay for Motor Protection
- LS CONTACTOR MC-6A 24VDC - 6A 24V DC Contactor
- LS CONTACTOR MC-6A 220VAC
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