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Specification & Description
The Siemens 3RH1140-2KB40 is a high-quality contactor relay designed for a wide range of industrial applications. This component is part of the SIRIUS product family, renowned for its reliability and performance in automation systems. With a compact size S00, it offers a space-saving solution for control panels and equipment.
This contactor relay features four normally open (NO) contacts, making it suitable for various switching tasks. It operates with a control supply voltage of 24 V DC within an operating range factor of 0.7 to 1.25 times the rated value. The inclusion of a varistor provides surge suppression, ensuring the longevity and stable operation of the relay.
The device is engineered to withstand mechanical operating cycles, boasting up to 30 million operations, which speaks to its durability and robustness. It has an insulation voltage rated at 690 V and can be used in environments with an altitude of up to 2000 meters above sea level. The ambient operating temperature range is from -25°C to +60°C, allowing for operation in various climates and conditions.
Installation is made easy with the option for screw and snap-on mounting, and the contactor relay can be positioned with a rotation of +/-180° on a vertical mounting surface. It also allows for a tilt of +/-22.5°, providing flexibility in installation. The electrical connection is facilitated by Cage Clamp terminals, which support a range of conductor cross-sections for both solid and stranded wires.
The Siemens 3RH1140-2KB40 is certified by several international standards, including CSA, UL, CCC, GL, LRS, BV, DNV, RMRS, and RINA, ensuring its suitability for global use in a variety of industrial settings. Whether used in control circuits or as part of a complex machinery setup, this contactor relay is a dependable choice for professionals seeking a combination of performance and resilience.
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Frequently Asked Questions
What is the size of the contactor for this relay?
The contactor relay is of size S00, which is a compact size suitable for various applications.
What is the protection class of this contactor relay?
The protection class on the front of the contactor relay is IP20, indicating a basic level of protection against solid objects.
Can this contactor relay be used at high altitudes?
Yes, the contactor relay can be installed at altitudes up to 2,000 metres above sea level without compromising its performance.
What is the operating temperature range for this relay?
The operating temperature range for the relay is between -25°C and +60°C, ensuring reliable operation in a variety of environmental conditions.
How many mechanical operating cycles can this contactor relay withstand?
The contactor relay is designed to withstand approximately 30 million mechanical operating cycles, highlighting its durability and longevity.
What type of control supply voltage does this relay use?
This relay uses a DC control supply voltage, specifically rated at 24V.
Does this relay come with a surge suppressor?
Yes, the relay is equipped with a varistor for surge suppression, providing additional protection against voltage spikes.
What is the maximum operating current for this relay at AC-12?
At AC-12, the maximum operating current for the relay is 10A.
What type of terminals does this relay have for electrical connections?
The relay features Cage Clamp terminals for secure and reliable electrical connections.
Are there any specific certifications or approvals for this relay?
The relay has several certifications and approvals, including CSA, UL, CCC, GL, LRS, BV, DNV, RMRS, and RINA, which attest to its compliance with international standards.
