The Siemens 3RU1136 Series Overload Relay is a robust and reliable component designed for motor protection. This particular model, the 3RU1136-4EB0, is engineered to safeguard motors by monitoring and reacting to overcurrent situations, thus preventing potential damage due to overload conditions. With a current adjustment range of 22 to 32 amperes, it is suitable for a variety of industrial applications.
Crafted for direct mounting, this overload relay is compatible with size S2 contactors and can be seamlessly integrated into existing setups. The unit features screw-type terminals for both the main and auxiliary circuits, ensuring secure and stable connections. The thermal overload relay is designed to operate within a voltage rating of up to 690 V AC, making it versatile for use in numerous electrical environments.
The compact dimensions of 55 x 127 x 171 mm allow for efficient use of space within control cabinets, while the device's construction ensures it remains finger-safe, enhancing safety during installation and maintenance. The relay is also equipped with a manual and automatic reset function, providing flexibility in how the relay can be reset after a trip event.
This overload relay is built to withstand challenging conditions, with an operational temperature range of -20 to +70 degrees Celsius and an installation altitude of up to 2000 meters above sea level. Its robust design includes a shock resistance of 8g / 10 ms and an impulse voltage resistance rated at 6 kV, ensuring durability and a long service life in demanding industrial settings.
The Siemens 3RU1136-4EB0 is a Class 10 overload relay, which means it trips within a time frame that is optimal for protecting motors in most industrial applications. It is a preferred choice for those seeking a reliable solution for motor protection that combines functionality with straightforward installation and operation.