EOCRDRD-WRUH Korea's Sanhe Upgrades Digital Relay

EOCRDRD-WRUH Korea's Sanhe Upgrades Digital Relay

EOCR-DSD is a product launched by Schneider ElectricNew generation digital current protection relaySpecially designed to provide comprehensive protection and intelligent monitoring functions for low-voltage motors. This product is an important upgrade to Schneider's EOCR product line, aimed at integrating multiple existing models to provide users with more efficient, standardized, and intelligent solutions.

Main features and functions

• ‌Multiple protection functionsIntegrated with various protections such as overcurrent, undercurrent, locked rotor, phase failure (phase loss), reverse phase (reversal), current imbalance, etcAdded zero sequence current/residual current protectionNo additional equipment configuration is required.

• ‌Wide range and high precisionThe current protection range is0.5 A to 60 AThe accuracy of current detection has been improved to±5%Suitable for a wider range of motor application scenarios.

• ‌Dual protection mode: SupportTimed (timed trip) and inverse time (inverse time trip)Two protection modes that can adapt to the needs of different load characteristics.

• ‌Intelligent diagnosis and recording: CanDisplay and record historical fault causesFacilitate rapid on-site diagnosis and maintenance, reducing downtime.

• ‌Flexible installation and compatibility: Support35mm rail installation or screw fixationThe power supply has a wide voltage range (100~240V AC/DC) and supports external current transformers (CT) and zero sequence current transformers (ZCT), adapting to various system environments.

• ‌high reliabilityCompliant with multiple international electromagnetic compatibility (EMC) and safety standards (such as IEC 60947-4-1), possessing excellent anti-interference ability and environmental adaptability.

Listing and Replacement Plan

• ‌Official launch dateJuly 14th, 2025.

• ‌Replace old modelsEOCR-DSD integrates the functions of multiple series such as the original EOCR-AR, EUCR, DS, DG, DZ, etcStarting from November 2025These old models have gradually stopped accepting orders, and the final order processing deadline isDecember 2025. Suggest users to plan replacement solutions as soon as possible.

• ‌Current statusAs of January 2026, EOCR-DSD has become the mainstream model in the market, and related old products have entered a transition period of discontinuation.

Typical application scenarios

EOCR-DSD, with its integrated and intelligent features, is widely used in:

• Factory automation equipment

• OEM (Original Equipment Manufacturer) Machinery

• Pump and Fluid Transport System

• Heating, Ventilation, and Air Conditioning (HVAC) System

• Power system renovation and distribution cabinet

This product significantly improves user operation and maintenance efficiency by reducing selection complexity and inventory pressure

EOCRDRD-WRUH Korea's Sanhe Upgrades Digital Relay