steve
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Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
3 months ago
3RB2956-2TG2
Siemens 3RB2956-2TG2 available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3RB2956-2TG2 is a sophisticated current transformer designed to enhance the protection and management of three-phase motors and other electrical equipment. This component is part of the 3RB family, known for its reliability and precision in monitoring electrical currents.
Crafted for versatility, the 3RB2956-2TG2 can be directly mounted or installed as a stand-alone unit, providing flexibility for various industrial settings. It features an adjustable response current range from 20 to 200 A, catering to a wide spectrum of applications and motor sizes. The transformer is suitable for servomotors with a rated value between 90 and 110 kW, ensuring that it can handle significant power requirements.
The unit boasts a straightforward electrical connection for the main current circuit through transformers, ensuring ease of integration into existing systems. With an IP20 protection class, it is designed to operate safely in industrial environments, protecting against solid objects larger than 12mm but not against water.
The 3RB2956-2TG2 is compliant with the PTB 05 ATEX 3022 Ex II (2) GD standard, indicating its suitability for use in potentially explosive atmospheres, which is critical for maintaining safety in hazardous areas.
This current transformer is an essential component for industrial automation, providing reliable protection against overloads and ensuring the longevity and efficiency of electrical equipment. Its robust design and compliance with international standards make it a valuable addition to any industrial electrical protection system.
Crafted for versatility, the 3RB2956-2TG2 can be directly mounted or installed as a stand-alone unit, providing flexibility for various industrial settings. It features an adjustable response current range from 20 to 200 A, catering to a wide spectrum of applications and motor sizes. The transformer is suitable for servomotors with a rated value between 90 and 110 kW, ensuring that it can handle significant power requirements.
The unit boasts a straightforward electrical connection for the main current circuit through transformers, ensuring ease of integration into existing systems. With an IP20 protection class, it is designed to operate safely in industrial environments, protecting against solid objects larger than 12mm but not against water.
The 3RB2956-2TG2 is compliant with the PTB 05 ATEX 3022 Ex II (2) GD standard, indicating its suitability for use in potentially explosive atmospheres, which is critical for maintaining safety in hazardous areas.
This current transformer is an essential component for industrial automation, providing reliable protection against overloads and ensuring the longevity and efficiency of electrical equipment. Its robust design and compliance with international standards make it a valuable addition to any industrial electrical protection system.
| Specification | Description |
|---|---|
| Part Number | 3RB2956-2TG2 |
| Alternative Part Number | 3RB29562TG2 |
| Manufacturer | Siemens |
| Adjustable Response Current | 20 … 200 A |
| Service Power for Three-Phase Motors | Rated value 90 … 11 kW |
| Type of Protection | PTB 05 ATEX 3022 Ex II (2) GD |
| Mounting Type | Direct mounting / stand-alone installation |
| Electrical Connection | Design for main current circuit: straight-through transformers |
| Protection Class IP | IP20 |
| Ambient Conditions | Suitable for use in environments where the temperature ranges from -25 to +60 °C |
| Weight | Approximately 235 g |
| Galvanic Isolation | Safe isolation at Ui <= 300 V |
| Switching Capacity | AC-15: 6A/24V; 6A/125V; 3A/250V, DC-13: 2 A / 24 V; 0.55 A / 60 V; 0.3 A / 125 V; 0.2 A / 250 V |
| Certificates/ Approvals | General Product Approval for use in hazardous locations |
What is the function of this electronic overload relay?
The electronic overload relay is designed to provide reliable protection for motors by monitoring and reacting to overload and phase-failure conditions. It ensures that the connected motor is safeguarded against potential damage due to excessive current draw.
Can this relay be used with high-efficiency motors?
Yes, the relay is suitable for use with high-efficiency motors. It meets the stringent requirements of the AC-3e utilization category, which takes into account the higher switch-on characteristics of efficiency-enhanced motors.
What is the current adjustment range for this relay?
The current adjustment range for the 3RB2956-2TG2 is from 20 to 200 A, allowing for flexibility in protecting a wide range of motor sizes.
How can I reset the relay after a trip event?
The relay can be reset manually by pressing the Test/Reset button or automatically if it is set to the auto-reset mode. Before resetting, ensure that the cause of the trip has been identified and rectified.
Is there a specific orientation required for mounting this relay?
The relay can be mounted in any orientation, providing flexibility in installation. However, it is important to follow the manufacturer's guidelines for proper mounting and securing of the device.
What type of protection does the relay offer for motor lines?
The relay offers protection against overload and phase failure for motor lines. It is designed to detect imbalances and prevent damage to the motor by disconnecting the power in the event of a fault.
Does the relay have a short-circuit protection feature?
The relay itself does not provide short-circuit protection. It should be used in conjunction with appropriate circuit breakers or fuses to ensure complete protection of the electrical system.
What are the environmental operating conditions for this relay?
The relay is designed to operate within an ambient temperature range of -25 to +60 degrees Celsius, ensuring reliable performance in a variety of industrial environments.
How can I integrate this relay into my existing motor control circuit?
The relay can be easily integrated into your motor control circuit using its screw-type terminals for secure connections. It is compatible with a range of contactors and can be connected to current measuring modules for comprehensive motor protection.
What should I do if the relay trips frequently?
Frequent tripping may indicate an underlying issue with the motor or the electrical circuit. It is advisable to inspect the motor for potential overloads, phase imbalances, or wiring issues and to ensure the relay is set correctly according to the motor's specifications.
- Protection of electrical equipment such as three-phase motors from overload conditions
- Integration into motor control systems for industrial automation processes
- Monitoring and safeguarding of pumps, fans, and compressors in manufacturing facilities
- Use in HVAC systems for temperature and airflow regulation
- Implementation in conveyor systems to prevent motor burnout due to excessive load
- Application in material handling equipment to ensure consistent operation and prevent overcurrent damage
- Deployment in packaging machinery for reliable and safe motor operation
- Utilisation in control panels for machinery to provide motor overload protection
- Installation in agricultural machinery to protect motors from overcurrent caused by jamming or overloading
- Use in water treatment plants to monitor and protect pumps and other motor-driven equipment
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
4 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
5 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
5 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
5 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
6 months ago
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