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Series 71 - Monitoring relay 10A - FINDER
Series 71 monitoring relays from FINDER are compact, multifunctional devices designed for continuous supervision of electrical parameters in industrial and building automation systems. These relays, rated at 10A, monitor variables such as voltage, current, phase sequence, phase failure, and frequency, ensuring system integrity and preventing equ...
Series 71 monitoring relays from FINDER are compact, multifunctional devices designed for continuous supervision of electrical parameters in industrial and building automation systems. These relays, rated at 10A, monitor variables such as voltage, current, phase sequence, phase failure, and frequency, ensuring system integrity and preventing equipment damage. The Series 71 includes models for overvoltage, undervoltage, phase asymmetry, and combined monitoring, with adjustable thresholds and time delays. They feature a modular housing for DIN rail mounting, LED status indicators, and a wide operating voltage range (e.g., 24-240V AC/DC). The relays are available in 1 or 2 changeover contact configurations, with a rated insulation voltage of 400V and a mechanical life of over 30 million operations. These devices are essential for protecting motors, pumps, compressors, and other critical loads from abnormal conditions.
Applications for Series 71 monitoring relays span across industrial control panels, power distribution boards, HVAC systems, water treatment plants, and renewable energy installations. They are commonly used in motor control centers (MCCs) to detect phase loss or reversal, in generator sets for voltage and frequency supervision, and in elevator controls for phase sequence verification. The relays also find use in data centers for power quality monitoring and in manufacturing lines to ensure continuous operation of automated machinery. Their robust design makes them suitable for harsh environments, with an operating temperature range of -20°C to +60°C and protection rating IP20.
Key subcategories within the Series 71 include voltage monitoring relays (e.g., 71.11.8.230.0000 for 3-phase over/undervoltage), current monitoring relays (e.g., 71.21.8.230.0000 for overcurrent), and phase sequence relays (e.g., 71.31.8.230.0000). The article code structure typically follows the pattern: 71.XX.X.XXX.0000, where the first two digits indicate the series (71), the next two the function (e.g., 11 for voltage, 21 for current), the next digit the number of phases (e.g., 8 for 3-phase), and the following three digits the supply voltage (e.g., 230 for 230V AC). Other notable codes include 71.41.8.230.0000 for combined phase sequence and voltage monitoring, and 71.51.8.230.0000 for frequency monitoring relays.
Partnering with Electric Automation Network ensures access to genuine FINDER Series 71 monitoring relays at competitive prices, with up to 65% discount compared to list prices. Our engineering team provides personalized technical support for relay selection, parameter configuration, and troubleshooting. We offer express worldwide shipping, real-time pricing, and detailed technical documentation for each article, including datasheets and wiring diagrams. Whether you need a single unit for a critical application or bulk quantities for large projects, our supply chain guarantees fast delivery and product authenticity.
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