MT32(12-18A)

Product Description

It is part of the LS (formerly LG Industrial Systems) Metasol series, known for its reliability and precision in industrial motor protection. The relay features a current setting range of 12 to 18 amperes, making it suitable for motors with a nominal full-load current within that range. It offers a compact design that can be directly mounted to LS magnetic contactors, such as the MC-32 series, or used independently with terminal covers for standalone applications. This overload relay operates on the principle of thermal bimetal deflection, providing accurate protection against overcurrent conditions. It includes a differential mechanism for phase-loss sensitivity, ensuring that the motor is disconnected quickly in the event of a single-phase failure. The relay has a trip class of 10, meaning it will trip within 10 seconds at 7.2 times the current setting, offering fast protection while allowing normal starting transients. The MT32(12-18A) is equipped with a test button, stop button, and an automatic/manual reset selector, allowing for flexible operation and maintenance. Constructed with durable materials and designed for long service life, the LS MT32(12-18A) is widely used in industrial automation, HVAC systems, pumps, compressors, and conveyor systems. Its compact size and easy installation make it a popular choice for panel builders and maintenance engineers. The relay meets international standards such as IEC 60947-4-1 and UL 508, ensuring compliance with global electrical safety requirements. With its robust performance and trusted brand reputation, the LS MT32(12-18A) is an essential component for motor protection in various industrial applications. The LS MT32(12-18A) is a thermal overload relay designed for protecting three-phase AC motors against overload, phase loss, and prolonged starting conditions.

Basic Product Information

• Differential phase-loss protection mechanism
• Trip class 10 for fast overcurrent response
• Direct mounting to LS MC-32 series magnetic contactors
• Test and stop buttons for functional verification and manual trip
• Automatic and manual reset modes selectable
• Compact and robust design for panel installation
• Complies with IEC 60947-4-1 and UL 508 standards
• Current setting range 12-18A with easy adjustment dial

Technical Specifications

Version & Model Difference

The LS MT32 series includes multiple current ranges, such as MT32(7-11A), MT32(9-13A), MT32(12-18A), and MT32(17-25A). The (12-18A) variant is specifically calibrated for motors with full-load currents between 12 and 18 amperes. Compared to older LG models, the LS version features improved trip accuracy and a more compact housing. The MT32 series is designed to be interchangeable with similar thermal overload relays from other brands when used with appropriate contactors, but for optimal performance, it is recommended to use with LS contactors.

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