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Siemens 7SR1053-2LA21-2EA0 60-240 V Motor Protection Relay
by Siemens
Features |
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Brand Name : | Siemens |
Frequency : | 50/60 Hz |
Type of Product : | Motor Protection Relay |
Model No : | 7SR1053-2LA21-2EA0 |
Dimension : | 105 x 185 x 186 mm |
Display Type : | LCD |
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The Siemens 7SR1053-2LA21-2EA0 60-240 V Motor Protection Relay is a specialized device used to monitor and protect electric motors from abnormal operating conditions. It is designed to detect various faults and abnormalities in motor operation and initiate appropriate protective actions to prevent motor damage and system failures. Motor protection relays are widely used in industrial applications where electric motors are critical components.
Here are the key features and functions of a motor protection relay:
1. Overload Protection: The relay monitors the motor's current and detects excessive current conditions that may indicate motor overload. It is typically programmable to set a threshold for allowable current levels. If the current exceeds the set limit, the relay will trip the motor to prevent overheating and damage.
2. Underload Protection: In addition to overload protection, some motor protection relays also offer underload protection. These relays monitor the motor's current and can detect a significant decrease in current levels, indicating an underload condition or a motor failure. They can initiate alarms or trip the motor to prevent energy wastage or identify potential issues.
3. Overcurrent Protection: Motor protection relays monitor the current flowing through the motor and can detect high levels of overcurrent caused by short circuits or faults. They provide fast response to protect the motor and the electrical system from damage. The relay trips the motor or activates protective measures when the current exceeds the set threshold.
4. Phase Loss Protection: Phase loss occurs when one or more phases of the power supply to the motor are lost. Motor protection relays monitor the presence of all three phases and can detect phase loss. This feature helps prevent motor damage due to unbalanced voltages or single-phasing conditions, ensuring the motor operates within safe limits.
5. Phase Reversal Protection: Motor protection relays can detect phase reversal, where the sequence of the phases in the power supply is incorrect. Phase reversal can lead to motor damage or inefficient operation. The relay identifies this condition and initiates protective actions, such as tripping the motor, to prevent adverse effects.
Motor protection relays are crucial for safeguarding electric motors from various operating conditions that can lead to damage, inefficiency, or failures. By providing comprehensive monitoring and fast response capabilities, these relays contribute to the reliable operation of motor-driven systems, minimize downtime, and extend motor lifespan.
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119,990
(GST inclusive price)
101,686
(GST extra)
25.97% OFF
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