EOC 3DE-80DUH/05DUH Digital Motor Protector

EOC 3DE-80DUH/05DUH Digital Motor Protector

The EOCR-3DE series is a classic economical digital motor protection relay under Schneider Electric (formerly known as Sanhe, South Korea). Among them, EOCR-3DE-05DUH and EOCR-3DE-80DUH are the two mainstream specifications of this series, focusing on the basic comprehensive protection of low-voltage three-phase asynchronous motors. It is positioned as a standardized protection solution with high cost-effectiveness and stable reliability, taking into account the core protection needs of industrial conventional working conditions and general electromechanical scenarios. It is a popular choice for economical motor protection. Both products belong to the EOCR-3DE basic series, continuing the brand's consistent advantages of high-precision detection and stable operation. They abandon redundant intelligent functions and focus on high-frequency motor fault protection such as overload, phase loss, locked rotor, current imbalance, and underload. They are suitable for small to medium power conventional motors and can be put into use without complex debugging. They can independently complete motor protection and can also be combined with contactors and circuit breakers to form a complete control and protection circuit, greatly reducing the risk of motor failure damage and unexpected shutdown, while strictly controlling power distribution and operation costs; The core functional logic of the two is consistent, with only subdivision and differentiation in current range and motor power adaptation, meeting the precise selection requirements under different working conditions. From the perspective of core specifications and hardware design, both EOCR-3DE-05DUH and EOCR-3DE-80DUH adopt a compact 35mm DIN rail structure, with a small volume, simple and orderly wiring layout, and does not occupy too much space in the distribution cabinet. They are suitable for integrated installation of various standard distribution cabinets and control cabinets. The shell is made of flame-retardant engineering plastic material, which has basic dust-proof and splash proof performance and can adapt to the operating environment of conventional industrial workshops and electromechanical equipment, meeting the reliability requirements for long-term uninterrupted operation. The power specifications are uniformly designed with wide width compatibility, supporting 100-240V AC/DC wide voltage input, adapting to mainstream industrial power supply voltages, avoiding voltage fluctuations that affect equipment operation, with extremely low power consumption, and no additional burden for long-term online operation. The core difference between the two models is concentrated in the current range: the EOCR-3DE-05DUH has a built-in basic detection range of 0.5-5A, designed specifically for low-power low-voltage motors, and is suitable for power ranges of 0.1-1.5kW. It can accurately sample without the need for an external current transformer; The EOCR-3DE-80DUH has upgraded its built-in detection range to 8-80A, covering the protection requirements of medium power motors. It can adapt to a power range of 2.2-37kW and has a high-precision current sampling module that can accurately distinguish between normal load fluctuations and real faults, effectively reducing misoperation and leakage protection. Both models have measurement accuracy that meets industrial standards and consistent stability

EOC 3DE-80DUH/05DUH Digital Motor Protector

Introduction to Core Features of EOCR-3DE Intelligent Protector

Wide current range and multi scene adaptation

We offer two current specifications, 05 type (0.5-7A) and 80 type (5-80A), covering diverse needs from precision equipment to heavy industry motors. We support single-phase/three-phase motors and are compatible with low-frequency operating environments

Suitable for 380-415V voltage system, power range 100-240V AC/DC universal, suitable for multiple industry scenarios such as automotive manufacturing, chemical industry, mining, etc