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Specification & Description
The Siemens 3RU Series Overload Relay is a compact and reliable solution designed for motor protection. This overload relay, with a part number 3RU1116-1EB0, is engineered to safeguard motors against excessive current draw, which can lead to overheating and potential damage. It is suitable for use in a wide range of industrial applications where motor reliability and performance are critical.
With an adjustable response current range of 2.8 to 4 A, this device ensures precise protection for motors by tripping in the event of an overload, thus preventing motor failure and extending the lifespan of your equipment. The relay is designed for direct mounting onto contactors, facilitating a streamlined and efficient setup.
The unit's dimensions are 87 x 45 x 78 mm, making it a compact choice that can easily fit into various control cabinets and motor control centres. It features a 1NC/1NO contact configuration, providing flexibility for integration into control circuits. The overload relay operates with a rated insulation voltage of 690 V and is classified as Class 10, which denotes a trip time of 10 seconds or less at 600% of the rated current, ensuring quick response to overloads.
Constructed to meet the demands of industrial environments, the Siemens 3RU1116-1EB0 overload relay is a robust component that offers both performance and durability. Its finger-safe design enhances safety during installation and maintenance, while the IP20 protection rating ensures that the internal components are guarded against the ingress of solid objects.
This overload relay is an essential component for any setup requiring reliable motor protection, contributing to the overall efficiency and safety of your operations. Whether you're looking to protect new motors or upgrade existing systems, the Siemens 3RU1116-1EB0 provides the performance and peace of mind needed to maintain continuous and safe operation.
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Frequently Asked Questions
What is the voltage rating for this overload relay?
The overload relay is rated for an insulation voltage of up to 690 V, making it suitable for a wide range of industrial applications.
Can this overload relay be directly mounted to a contactor?
Yes, this overload relay is designed for direct mounting to a contactor, which simplifies installation and integration into motor control systems.
What are the dimensions of this overload relay?
The dimensions of the overload relay are 87 mm in height, 45 mm in width, and 78 mm in depth, which corresponds to the S00 size classification.
What type of terminals does this overload relay have?
This overload relay is equipped with screw-type terminals for both the main current circuit and the auxiliary and control current circuit.
What is the trip class of this overload relay?
The overload relay has a trip class of 10, which indicates the time it takes for the relay to trip in the event of an overload.
What is the ambient temperature range for operating this overload relay?
The overload relay can operate within an ambient temperature range of -20 to +70 degrees Celsius, ensuring reliable performance in various environmental conditions.
What is the protection class of the front side of this overload relay?
The front side of the overload relay has a protection class of IP20, which provides a basic level of protection against solid objects.
What is the maximum installation altitude for this overload relay?
The maximum installation altitude for the overload relay is 2,000 meters above sea level, allowing for use in high-altitude locations.
How many auxiliary contacts does this overload relay have?
The overload relay comes with one normally closed (NC) and one normally open (NO) auxiliary contact for signalling and control purposes.
What is the adjustable current range for the overload release?
The current-dependent overload release of the overload relay can be adjusted within a range of 2.8 to 4 A, providing flexibility for different motor protection requirements.
