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Protection Relay

Showing 40 out of 210 products

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₹1,002   ₹2,999
You save ₹1,997!
66.59% OFF
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.
₹7,787 - ₹9,321
The L&T [ Lauritz Knudsen ] REO 1.1 Electronic Motor Protection Relay, part of the CS90418OO_O Series, signifies a breakthrough in motor protection technology. Engineered by L&T, this relay provides advanced protection features tailored to ensure the safe and efficient operation of motors in various industrial applications. Distinguished by the CS90418OO_O Series designation, this relay reflects L&T's commitment to innovation and excellence. It offers comprehensive protection against a wide range of motor faults, including overloads, phase imbalances, short circuits, and other electrical anomalies, thus minimizing the risk of motor damage and downtime. The REO 1.1 relay undergoes rigorous testing to meet stringent industry standards, ensuring its reliability and effectiveness in demanding industrial environments. It features customizable settings and advanced functionalities such as thermal overload protection, phase loss detection, and fault indication, allowing for tailored protection solutions for specific motor applications. Whether deployed in manufacturing plants, process industries, or commercial facilities, the L&T REO 1.1 Electronic Motor Protection Relay CS90418OO_O Series delivers dependable performance, ensuring uninterrupted operation and mitigating the risk of costly disruptions.
green checkType of Product : Electronic Motor Protection Relay
green checkMounting Type : MO 9-45
green checkType : REO 1.1
green checkSuitable For : MO Contactor
₹20,059  
L&T (Lauritz Knudsen) Electronic Motor Protection Relay With In-Built Display & Modbus RTU Communication and 16-88 A Thermal Overload Range, EMPR300ICCO is designed to deliver intelligent protection and monitoring for medium to large electric motors in industrial applications. The relay continuously monitors motor current to detect overload, phase imbalance, and abnormal operating conditions. Its adjustable thermal overload range of 16-88 A enables accurate protection settings according to motor ratings. The in-built display provides real-time visibility of operating parameters, helping operators quickly identify system conditions and faults. L&T (Lauritz Knudsen) Electronic Motor Protection Relay With In-Built Display & Modbus RTU Communication and 16-88 A Thermal Overload Range, EMPR300ICCO supports Modbus RTU communication for seamless integration with industrial automation systems, PLCs, and SCADA platforms. This capability enables centralized monitoring, remote configuration, and improved system diagnostics. The relay uses advanced electronic sensing technology to provide reliable protection and fast tripping during abnormal conditions. Its durable construction and compact design make it suitable for installation in control panels protecting pumps, compressors, conveyors, and heavy industrial equipment.
₹16,519  
L&T (Lauritz Knudsen) Electronic Motor Protection Relay With In-Built Display & Modbus RTU Communication and 1-5.5 A Thermal Overload Range, EMPR300ICAO is designed for intelligent motor protection and monitoring in modern industrial automation systems. The relay continuously monitors motor current and detects overload, phase failure, and abnormal operating conditions that could lead to equipment damage. Its adjustable thermal overload range of 1-5.5 A allows precise protection settings for small motors. The in-built display provides real-time operational information, enabling operators to easily monitor motor performance and system status. L&T (Lauritz Knudsen) Electronic Motor Protection Relay With In-Built Display & Modbus RTU Communication and 1-5.5 A Thermal Overload Range, EMPR300ICAO supports Modbus RTU communication, allowing seamless integration with PLCs, SCADA systems, and industrial monitoring networks. This connectivity enables remote diagnostics and improved control of motor operations. The relay’s advanced electronic sensing technology ensures fast detection of abnormal conditions and reliable tripping to prevent motor damage. Its compact design and durable construction make it suitable for installation in industrial control panels protecting pumps, conveyors, compressors, and automated machinery.
₹15,339  
L&T (Lauritz Knudsen) Electronic Motor Protection Relay With In-Built Display, 16-88 A Thermal Overload Range and 85-265 V AC Aux. Supply Voltage, EMPR300DCCO is engineered to provide advanced protection for medium and high capacity motors operating in industrial environments. The relay continuously monitors motor current and thermal conditions to detect overload, phase imbalance, and abnormal operating states that may lead to equipment damage. Its adjustable thermal overload range of 16-88 A enables precise configuration according to motor ratings. The in-built display offers clear real-time visibility of operating parameters and fault conditions. L&T (Lauritz Knudsen) Electronic Motor Protection Relay With In-Built Display, 16-88 A Thermal Overload Range and 85-265 V AC Aux. Supply Voltage, EMPR300DCCO operates with a wide auxiliary supply voltage range, ensuring compatibility with various electrical systems. The relay uses advanced electronic sensing technology to provide accurate monitoring and rapid tripping during overload situations. Its rugged construction ensures dependable performance in demanding industrial applications. Designed for easy panel installation, it is widely used to protect pumps, compressors, conveyors, and heavy machinery while supporting reliable motor operation.
₹12,979  
L&T (Lauritz Knudsen) Electronic Motor Protection Relay With In-Built Display, 4-22 A Thermal Overload Range and 85-265 V AC Aux. Supply Voltage, EMPR300DCBO is designed to protect motors from overload, phase loss, and abnormal current conditions in industrial electrical systems. The relay continuously monitors motor performance and provides accurate thermal protection within the adjustable range of 4-22 A, allowing precise configuration according to motor rated current. Its integrated display provides real-time information about operating parameters and fault conditions, making system monitoring more convenient and efficient. L&T (Lauritz Knudsen) Electronic Motor Protection Relay With In-Built Display, 4-22 A Thermal Overload Range and 85-265 V AC Aux. Supply Voltage, EMPR300DCBO supports a wide auxiliary supply range of 85-265 V AC, enabling flexible integration into various industrial control systems. The relay incorporates advanced electronic monitoring technology that ensures quick detection of overload or abnormal conditions and initiates protective tripping when necessary. Its durable construction and compact structure support easy panel installation. Commonly used in pumps, compressors, conveyors, and manufacturing equipment, it enhances motor safety and ensures reliable operation.
₹10,973  
L&T (Lauritz Knudsen) Electronic Motor Protection Relay With In-Built Display, 1-5.5 A Thermal Overload Range and 85-265 V AC Aux. Supply Voltage, EMPR300DCAO is designed to provide intelligent monitoring and protection for small electric motors in industrial automation systems. This relay continuously measures motor current and detects overload, phase failure, and abnormal operating conditions that may affect equipment performance. The adjustable thermal overload range of 1-5.5 A allows accurate configuration according to motor specifications. Its in-built display provides clear real-time information on operating parameters, improving system visibility and simplifying troubleshooting. L&T (Lauritz Knudsen) Electronic Motor Protection Relay With In-Built Display, 1-5.5 A Thermal Overload Range and 85-265 V AC Aux. Supply Voltage, EMPR300DCAO operates with a wide auxiliary supply voltage range of 85-265 V AC, ensuring compatibility with various industrial power systems. The relay’s advanced electronic sensing technology ensures quick detection of overload conditions and reliable tripping to prevent motor damage. Its compact panel-friendly design enables easy integration into control cabinets. Suitable for pumps, conveyors, compressors, and automated machinery, it supports dependable motor protection and efficient operation in modern industrial environments.
₹14,159  
L&T (Lauritz Knudsen) Electronic Motor Protection Relay With Built-In Earth Fault Protection and 16-88 A Thermal Overload Range, EMPR300XBCO is designed to provide reliable protection for medium and high capacity motors used in demanding industrial operations. The relay monitors motor current continuously to detect overload, phase failure, and earth fault conditions that may lead to equipment damage. With an adjustable thermal overload range of 16-88 A, it allows accurate configuration according to motor ratings. The integrated earth fault protection feature improves system safety by detecting leakage currents and preventing hazardous electrical conditions. L&T (Lauritz Knudsen) Electronic Motor Protection Relay With Built-In Earth Fault Protection and 16-88 A Thermal Overload Range, EMPR300XBCO incorporates advanced electronic sensing technology to ensure precise monitoring and rapid response to abnormal conditions. This helps prevent overheating, insulation damage, and unexpected motor failure. Built with robust electronic components, the relay provides reliable performance in demanding industrial environments such as manufacturing plants and process industries. Its compact construction and easy adjustment make it suitable for installation in control panels protecting pumps, compressors, conveyors, and heavy-duty machinery.
₹11,681  
L&T (Lauritz Knudsen) Electronic Motor Protection Relay With Built-In Earth Fault Protection and 4-22 A Thermal Overload Range, EMPR300XBBO is engineered to safeguard motors from overload, phase imbalance, and earth fault conditions in industrial electrical systems. This relay continuously monitors motor current and detects abnormal operating conditions that could damage equipment or reduce system reliability. The adjustable thermal overload range of 4-22 A allows accurate configuration according to motor rated current, ensuring effective protection. Its integrated earth fault protection enhances safety by identifying leakage currents and preventing hazardous operating conditions. L&T (Lauritz Knudsen) Electronic Motor Protection Relay With Built-In Earth Fault Protection and 4-22 A Thermal Overload Range, EMPR300XBBO uses advanced electronic monitoring technology to deliver precise protection and rapid tripping during abnormal conditions. The relay helps extend motor life by preventing overheating and electrical faults. Its durable design and compact structure enable easy installation in control panels and motor starter assemblies. Commonly used in pumps, conveyors, compressors, and manufacturing equipment, it provides dependable motor protection while improving safety and operational reliability in industrial applications.
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Top Selling Protection Relay Products Price List for August 2026

Product Name Specifications Expected Price Dispatch Time Discount
Multispan 1 Relay Self Powered Din Rail Voltage & Current Protection Relay, VPR-22 Dimension 90x22.5x72 mm (HxWxD) | Output 1 Relay ₹1,651 7 days --
L&T [ Lauritz Knudsen ] REO 1.1 Electronic Motor Protection Relay CS90418OOGO Mounting Type MO 9-45 | Relay Range (Amps) 9-45 A ₹9,321 25 days --
MULTISPAN DC Voltage Protection Relay 90x35x63 mm 18-70 V DC/70-300 V DC Voltage Range Self Powered, VDC-35 Color White & Grey | Output 2 Relay (NO-C-NC) 230 V AC (Resistive Load) ₹2,477 6 days --
Selec Digital Voltage Protection Relay 2 x 1 C/O, 900VPR-BL-U-CE Relay Type Digital Voltage Protection Relay ₹3,657 25 days --
L&T (Lauritz Knudsen) Electronic Motor Protection Relay 1-5.5 A Thermal Overload Range and 230 V AC Aux. Supply Voltage, EMPR150XBAO Auxiliary Supply Voltage 230 V AC | Color Dark Grey ₹3,775 15 days --
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) ₹2,005 6 days --
MULTISPAN Analog Voltage Protection Relay 90x22.5x72 mm 1 Relay Output 160-300 V AC (10 2W) Voltage Range, SVR-22 Output 1 Relay | Size (H X W X D) 90x22.5x72 mm ₹1,143 5 days --
L&T [ Lauritz Knudsen ] REO 1.1 Electronic Motor Protection Relay CS90418OOLO Mounting Type MO 9-45 | Relay Range (Amps) 2.4-12 A ₹7,787 6 days --
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) ₹2,477 2 days --
Multispan 2 Relay Self Powered Din Rail Voltage & Current Protection Relay, VPR-33 Dimension 75x45x110 mm (HxWxD) | Output 2 Relay ₹2,595 7 days --
This data was last updated on 05/08/2026