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Check similar products or call us on +44 20 4570 3439 for assistance
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Specification & Description
The Siemens 3RN1012-1CB00 is a sophisticated motor protection relay designed to safeguard motors from potential damage due to overheating. This device utilises thermistor sensors to monitor the temperature of the motor windings, providing real-time protection and ensuring the longevity and reliability of your motor-driven applications.
Crafted for versatility, the relay features a dual voltage rating of 24 V ac/dc, making it suitable for a wide range of control supply voltages. The inclusion of both a normally open (NO) and a normally closed (NC) contact allows for flexible integration into various control circuits, accommodating different safety and control strategies.
Installation is made simple with options for both screw and snap-on mounting, ensuring a secure fit in a variety of settings. The compact dimensions of 23 x 91 x 102 mm allow for efficient use of space inside control cabinets. The screw terminal connections provide a robust and reliable means of wiring, further simplifying the installation process.
The relay is equipped with an LED display for clear indication of operational status, and it includes a reclosing lockout feature to prevent automatic restarting of the motor under fault conditions, enhancing the protection offered to your equipment.
With an ambient operating temperature range of -25 to +60°C, the Siemens 3RN1012-1CB00 is resilient and capable of performing in diverse environmental conditions. This makes it an ideal choice for a broad spectrum of industrial applications where motor protection is paramount.
Commonly Asked Questions
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Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.
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Frequently Asked Questions
What is the purpose of this motor protection relay?
This motor protection relay is designed to protect motors from overheating by monitoring the temperature via connected thermistors and initiating a shutdown if an overtemperature condition is detected.
Can this relay be used with both AC and DC control circuits?
Yes, the relay is suitable for use with 24 V AC as well as 24 V DC control circuits, providing flexibility in various application environments.
What type of mounting options are available for this relay?
The relay offers both screw and snap-on mounting options, allowing for easy installation in a variety of settings.
What are the dimensions of this relay?
The dimensions of the relay are 102 mm in height, 22.5 mm in width, and 91 mm in depth, making it compact and suitable for installations with limited space.
What is the ambient temperature range for the operation of this relay?
The relay can operate within an ambient temperature range of -25 to +60 degrees Celsius, ensuring reliable performance in a wide range of environmental conditions.
Does this relay have a manual reset function?
Yes, the relay includes a manual reset function, which allows for the manual reactivation of the motor circuit after an overtemperature trip.
What type of electrical connections does this relay support?
The relay is equipped with screw-type terminals for auxiliary and control current circuits, providing a secure and reliable connection.
Is there a successor model for this relay?
The preferred successor for the 3RN1012-1CB00 is the 3RN2012-1BA30, which offers similar functionality with updated features.
What is the protection class of this relay?
The relay has a protection class of IP20, indicating a basic level of protection against solid objects.
Does this relay have an LED display?
Yes, the relay features an LED display for visual indication of its status and diagnostics.
