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Specification & Description
The Siemens 3RU Series Overload Relay is a robust and reliable component designed for industrial applications requiring precise motor protection. This overload relay, with a part number 3RU1136-4BB0, is engineered to safeguard motors from excessive current draw, which can lead to overheating and potential damage. It operates with a voltage rating of up to 690 V and is suitable for a single channel configuration.
The device features a compact design, measuring 105 x 55 x 118 mm, making it an ideal choice for installations where space is at a premium. It comes equipped with 1NC/1NO contacts, providing flexibility for integration into various control circuits. The overload relay is classified under trip class 10, ensuring quick response to overcurrent conditions to prevent motor failure.
Constructed to the high standards expected from Siemens, this overload relay is a dependable solution for a wide range of industrial motor control applications. Its straightforward mounting process allows for direct attachment to contactors, facilitating easy installation and maintenance. The 3RU1136-4BB0 is a testament to Siemens' commitment to quality, offering both performance and durability for motor protection in demanding environments.
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Frequently Asked Questions
What is the voltage rating for this overload relay?
The overload relay is rated for a voltage of up to 690 V.
Can you describe the size and class of this overload relay?
This is a size S2, class 10 thermal overload relay, suitable for contactor mounting.
What are the dimensions of this overload relay?
The dimensions of the overload relay are 105 mm in height, 55 mm in width, and 118 mm in depth.
What is the ambient temperature range for operating this overload relay?
The ambient temperature range for operating the overload relay is from -20°C to +70°C.
What type of contacts does this overload relay have?
The overload relay is equipped with 1 Normally Closed (NC) and 1 Normally Open (NO) contact.
What is the adjustable response current range for this overload relay?
The adjustable response current range for the 3RU1136-4BB0 is 14 to 20 A.
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.
Is this overload relay finger-safe?
Yes, the overload relay is designed to be finger-safe, providing protection against electrical shock.
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.
What type of terminals does this overload relay have for electrical connections?
The overload relay has screw-type terminals for both the main current circuit and the auxiliary and control current circuit.
