Omron V-103-1A4-T Limit Switch

Omron is a world leader in precision-engineered automation components, known for its high-quality and long-life electrical switches. The V-103-1A4-T belongs to Omron’s range of Miniature Basic Switches, designed for applications where compactness, sensitivity, and high reliability are essential. Engineers use this model across industries such as automation, HVAC, robotics, and industrial machinery for dependable signal detection and mechanical control. With Omron’s reputation for consistent performance, the Omron V-103-1A4-T combines high sensitivity and robust construction to ensure long-term reliability even in harsh operating conditions.

The V 103 1A4 T model features a short hinge lever actuator that ensures smooth and precise switching with minimal mechanical resistance. Its solder terminal configuration allows for secure wiring, reducing the risk of loose connections. The switch operates with an operating force of 0.98 N (max.) and a release force of 0.04 N (min.), ensuring quick response and low friction movement. With a pretravel of 1.3 mm, overtravel of 0.7 mm, and movement differential of 0.15 mm, the V1031A4T provides accurate actuation in precision systems. The operating position of 19.8 ± 1.2 mm ensures repeatable switching, critical in control mechanisms and sensing applications.

Electrically, the Limit Switch V-103-1A4-T is built for high-performance and durability. It supports a 10.1 A rating at 250 VAC and 0.3 A at 125 VDC, making it suitable for both AC and DC circuits. It maintains an insulation resistance of 100 MΩ min (at 500 VDC), ensuring consistent electrical isolation. The switch provides dielectric strength of 1,500 VAC between terminals and 1,500 VAC between terminals and ground for one minute, meeting stringent industrial safety standards. With a robust SPST-NO (1A) contact form, the Omron V 103 1A4 T ensures stable connection with minimal contact wear during repeated use.

Engineered for long operational life, the V-103-1A4-T functions effectively across a temperature range of –25°C to +80°C for standard models, and up to +150°C for heat-resistant variants. It can operate in humidity levels up to 85% RH without performance degradation. This reliability makes it ideal for automated assembly lines, electromechanical devices, and limit-sensing applications that demand high sensitivity and precision. Compact and easy to mount, the switch minimizes installation space requirements while maintaining excellent mechanical endurance and electrical consistency.

The Omron V-103-1A4-T Limit Switch is trusted by OEMs, automation engineers, and panel manufacturers for integration into compact systems requiring long service life. It’s widely used in mechanical feedback loops, conveyor sensors, and industrial process controls. Wholesalers and distributors recommend it for both maintenance and OEM production due to its proven durability and Omron’s renowned build quality. The compact structure of the V1031A4T allows designers to incorporate it easily into new equipment or retrofit applications, improving reliability without increasing control panel size.

For engineers seeking a similar high-durability switch with higher current capacity, the Omron V-155-1C25 offers excellent compatibility and ruggedness within the same product family. Both the V-155-1C25 and V-103-1A4-T exemplify Omron’s expertise in delivering high-quality control switches for industrial automation. With its compact form, consistent actuation, and proven reliability, the Omron V-103-1A4-T continues to be one of the most trusted Limit Switch V 103 1A4 T models used in control and monitoring systems around the world.