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PER60-600-70

The ABB PER60-600-70 is a member of the PSR (Protection Signaling and Control) and REM (Relay for Distribution Network Management) relay families. It is a compact, digital, non-directional overcurrent relay designed primarily for the protection of transformers, cables, motors, and generators in medium-voltage distribution networks and industrial power systems.

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Technical Parameters: Parameter Category Specification Standard Compliance IEC 60255, IEC 60870-5-103 (with comm. module) Rated Auxiliary Voltage (Us) 48 - 250 V DC / 48 - 240 V AC (wide range) Rated Frequency (fn) 50 / 60 Hz Current Input (CT Secondary) 1 A or 5 A (selectable) Overcurrent Protection • Phase Stages 2 stages: Instantaneous (I>) & Time-delayed (I>>) • Earth-Fault Stage 1 stage: Time-delayed (I0>>) • Setting Ranges Phase: Typically 0.1 - 1.2 x In (I>) & 1 - 15 x In (I>>) in steps. Earth: Typically 0.02 - 1.2 x In (sensitive). (Refer to official manual for exact ranges.) • Time Curves Definite Time (DT), Inverse Definite Minimum Time (IDMT) per IEC 60255 (e.g., EI, VI, LTI). Output Contacts • Trip Relay 2 or 3 changeover (CO) contacts, rated for high making/breaking capacity. • Signal Relay 2 or more changeover (CO) contacts for alarms/signaling. Communication (Optional) RS485 port with protocol options: ABB SPA, Modbus RTU, or IEC 60870-5-103. Operating Temperature -25°C to +55°C (-13°F to +131°F) Mounting Plug-in or fixed mounting for panel or DIN rail installation. Case Dimensions Compact form factor (approx. 144mm x 144mm or similar, model-dependent).