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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RN1011-1CK00 |
| Alternative Part Number | 3RN10111CK00 |
| Manufacturer | Siemens |
| Series | 3RN1 |
| Type | Thermistor Motor Protection Unit |
| Operation | Manual |
| Voltage Rating | 230/110 V AC |
| Frequency | 50/60 Hz |
| Number of Measuring Circuits | 1 |
| Contacts Configuration | 1 Normally Open (NO) + 1 Normally Closed (NC) |
| Connection Type | Screw Connection |
| Width | 22.5 mm |
| Height | 102 mm |
| Depth | 91 mm |
| Protection Class | IP20 |
| Ambient Operating Temperature | -25 to +60 °C |
| Measurable Temperature Range | 60 to 180 °C |
| Product Function | Reclosing interlock, Defect storage, External reset |
| Approval | EMC, For use in hazardous locations |
The Siemens 3RN1011-1CK00 is a thermistor motor protection unit designed to safeguard motors from potential thermal overload. This standard evaluation unit is a crucial component for industrial applications where motor reliability and protection are paramount. It operates with a control supply voltage of 230 V ac or 110 V ac, catering to a broad range of electrical systems.
Crafted for durability and efficiency, the unit measures 23 x 86 x 102 mm, making it a compact solution that can be easily integrated into existing setups. The device features a manual reset function, one normally open (NO) and one normally closed (NC) contact, ensuring that it can be tailored to various control circuit requirements.
The 3RN1011-1CK00 is equipped with an LED display for clear indication of operational status and is housed in an IP20 rated enclosure, providing protection against solid objects larger than 12mm. It is designed to operate within an ambient temperature range of -25 to +60 degrees Celsius, ensuring reliable performance in diverse working environments.
This thermistor motor protection unit is an essential component for those seeking a robust and reliable solution to protect their motor-driven equipment from thermal damage, thus ensuring longevity and reducing downtime in their operations.
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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Read more...Is Marvo a credible parts supplier?
Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.
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Frequently Asked Questions
What is the purpose of this thermistor motor protection unit?
The thermistor motor protection unit is designed to protect motors from overheating by monitoring the temperature via connected thermistors and disconnecting the power in case of a temperature rise beyond the set threshold.
Can this device be manually reset?
Yes, the Siemens 3RN1011-1CK00 features a manual reset function, allowing an operator to manually reset the device after a trip event.
What type of connections does this unit support?
This unit supports screw-type terminal connections for both auxiliary and control current circuits.
What is the voltage rating for this protection unit?
The unit is rated for control supply voltages of 110 V AC at both 50 Hz and 60 Hz, and 230 V AC at both 50 Hz and 60 Hz.
How many measuring circuits does this unit have?
The unit has one measuring circuit for connecting a thermistor.
What are the dimensions of this protection unit?
The dimensions of the unit are 22.5 mm in width, 102 mm in height, and 91 mm in depth.
What is the IP rating of this device?
The device has an IP20 protection class rating.
Does this unit have a LED display?
Yes, it comes with an LED display for indicating operational status and diagnostics.
What is the ambient operating temperature range for this unit?
The ambient operating temperature range for this unit is from -25°C to +60°C.
What type of product approvals does this unit have?
The unit has general product approvals for EMC, which indicates it meets electromagnetic compatibility requirements.
Part conditions explained
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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.
New sealed: The product is sealed in its original packaging. It has never been opened or used, ensuring that it's in an untouched state.
New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.
Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.
Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
