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Protection Relay

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₹2,477   ₹2,697
You save ₹220!
8.16% OFF
The Motor Protection Relay is a device that protects electric motors from overload and short-circuits. Overload occurs when the load on the motor exceeds its actual rating, which can cause the motor to overheat. Short-circuiting occurs when a metallic conductor, such as a bolt or screw, comes into contact with the motor terminals and creates a path for current to flow. The MP detects these conditions and switches off the circuit, preventing damage to the motor from occurring. Relays can be initiated in a variety of ways, but they all provide the same basic protection: when the current flowing through the motor reaches a certain level, the relay senses and responds to that level. The response is usually to divert current flow away from the motor and into an alternate form, such as a heat sink or an overcurrent protector that will disconnect power entirely. This is done to prevent damage to the motor itself. A motor protection relay is a safety device that monitors the current, voltage and frequency of a single-phase AC motor and disconnects the power supply if the current exceeds the upper or lower setpoint. MPRs are especially useful when used on variable frequency drives (VFD) due to their ability to perform soft starts and stopping with variable torque loads. While they can be used anywhere a motor is used, they are commonly found on pumps and heating/cooling systems.
₹1,025   ₹2,999
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The GENERIC Digital Voltage Protection with Auto Re-Connect LED Display White, AVP-63 is a critical component in electrical systems designed to protect equipment and circuits from voltage fluctuations, overvoltages, and voltage-related issues. This device serves as a safeguard against electrical faults, ensuring the reliability and longevity of sensitive equipment while minimizing downtime and costly repairs. One of the primary functions of the Voltage Device Protector Relay is to detect voltage irregularities and respond swiftly to mitigate potential damage. It continuously monitors the voltage levels within an electrical system, and when it detects anomalies such as overvoltage, undervoltage, or voltage spikes, it triggers protective measures to prevent harm to connected devices. Overvoltage protection is essential as it guards against voltage surges that can result from lightning strikes, power grid fluctuations, or other external factors. By instantly disconnecting or redirecting the excess voltage, this relay shields valuable equipment, including computers, industrial machinery, and electronic appliances, from potential damage. Similarly, undervoltage protection is vital to prevent voltage drops that can lead to equipment malfunction or shutdowns. The Voltage Device Protector Relay can automatically disconnect the load from the power source in case of prolonged undervoltage, ensuring that equipment operates within safe voltage limits. Another significant feature of this relay is its ability to provide time-delayed protection. In certain situations, momentary voltage fluctuations may occur without causing harm. The relay can be programmed to allow brief fluctuations while responding to prolonged voltage anomalies, reducing the risk of unnecessary equipment disconnection. Many Voltage Device Protector Relays are designed with remote monitoring and communication capabilities, allowing operators to receive real-time notifications and control the relay remotely. This feature is especially valuable for large-scale industrial operations and critical infrastructure, where rapid response to voltage issues is essential to prevent costly downtime. The reliability and precision of the Voltage Device Protector Relay make it an indispensable component in various sectors, including manufacturing, data centers, telecommunications, and healthcare. Its role in safeguarding electrical systems and equipment from voltage-related damage underscores its importance in ensuring uninterrupted operations and minimizing costly repairs and replacements.
₹2,359  
Selec's 600VPR-1-180/300V Voltage Protection Relay monitors the difference between input and output voltage. It prevents the voltage from getting too high or too low. The relay is constructed with a Polyester resin case that provides protection from harsh external environments. Its terminal block is sealed to prevent contamination of internal contacts, and it has an auto-reset function that resets the relay when power is turned off. This feature prevents it from being inadvertently left in an operating condition after maintenance. The relay's voltage threshold is adjustable via a potentiometer, allowing for control over the trip point. Its circuit includes a zero cross detection function, which prevents false triggering from switch contact bounce that can occur during switching surges. This protects against improper operation caused by voltage sags and spikes, as well as electromagnetic interference (EMI) and radio frequency interference (RFI). The relay can be used in a variety of applications including industrial control, motor control, commercial lighting systems, and any other application where over or undervoltage protection is necessary. The Selec 600VPR-1-180/300V Voltage Protection Relay monitors the voltage supplied to a load and provides an indication in the event that over or under voltage occurs. A variable trip time is available ranging from 0.25 sec - 20 sec depending on application requirements. This device can be used with other devices in Selec's range to connect multiple loads to a single supply, or alternatively it can be used with any other brand of device to monitor a separate load. The relay may be programmed to trip at any voltage between 180V AC - 300V AC (L1-L2) and will reset automatically when voltage returns within the specified parameters.
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₹44,099 ₹54,600
19.23% OFF
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Top Selling Protection Relay Products Price List for December 2025

Product Name Specifications Expected Price Dispatch Time Discount
Selec Digital Voltage Protection Relay 2 x 1 C/O, 900VPR-BL-U-CE Relay Type Digital Voltage Protection Relay ₹3,421 3 days 21.39% OFF
Multispan 1 Relay 230 V AC Din Rail Voltage & Current Protection Relay, OLR-1030 Current 5 Amp to 30 Amp AC (3CT) | Dimension 70x55x65 mm (HxWxD) ₹1,550 6 days --
Schneider Electric Residual Current Protection Relay RH99M Type 380-415 V AC 50/60 Hz, 56174 Maximum Power Consumption 4 VA | Minimum Load 10 mA at 12 V ₹27,139 25 days 1.49% OFF
Multispan 1 Relay 230 V AC Din Rail Voltage & Current Protection Relay, OLR-3060 Current 10 Amp to 60 Amp AC (3CT) | Dimension 70x55x65 mm (HxWxD) ₹1,735 6 days --
Multispan 1 Relay Self Powered Din Rail Voltage & Current Protection Relay, SPP-22-1 -- ₹702 6 days --
Multispan 2 Relay Self Powered Din Rail Voltage & Current Protection Relay, VPR-33 Dimension 75x45x110 mm (HxWxD) | Output 2 Relay ₹1,574 5 days --
Multispan SPP-22(Single Phase preventor) Voltage and Current Protection Relay (Din rail) -- ₹683 5 days 0.03% OFF
This data was last updated on 22/12/2025