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PSR45-600-11

The ABB PSR45-600-11 is a compact, multi-functional, and cost-effective microprocessor-based protection relay belonging to ABB's versatile PSR (Protection, Signaling, and Control) series. It is designed as a universal protection device for a wide range of applications, including feeder protection, motor protection, transformer protection, and general equipment protection in industrial and commercial power distribution systems.

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Parameter Category Specification Product Family / Type Compact Configurable Multifunction Protection Relay Standard Compliance IEC 60255, IEC 60947-1 Rated Auxiliary Supply Voltage (Us) 24 - 48 V DC (This is defined by the -11 suffix). Rated Current Input (In) 1 A AC (This is defined by the -600- in the type code. 600 = 1A; 500 = 5A). Configurable Functions (via DIP Switch) The relay can be configured as one of the following: 1. Three-phase overcurrent relay (I>) 2. Two-phase overcurrent relay (I>) 3. Single-phase overcurrent relay (I>) 4. Sensitive earth-fault relay (I0>) 5. Three-phase overcurrent + Earth-fault relay (I> + I0>) Protection Characteristics & Settings • Operate Value (Pick-up) Phase Fault: Adjustable from 0.2 x In to 1.0 x In via a 10-position DIP switch. Earth Fault: Adjustable from 0.02 x In to 0.2 x In via a 10-position DIP switch. • Time Delay Definite Time (DT). Adjustable via a front potentiometer: 0.06 seconds to 3.0 seconds. • Reset Time Instantaneous (approx. 60 ms). • Reset Ratio > 95% of the operate value. Output Contacts • Trip Relay (K1) 1 Changeover (CO) contact (SPDT). • Rated Load: 8 A, 250 V AC / 5 A, 30 V DC. • Signal Relay (K2) 1 Changeover (CO) contact (SPDT). • Can be configured for Trip Replication or as an independent Pre-alarm. Binary Input 1 programmable input. Can be assigned as a Remote Reset or Blocking input. Indications 3 LEDs: - GREEN (PWR): Power ON. - YELLOW (ALARM): Pre-alarm or start signal activation. - RED (TRIP): Protection has operated (trip condition). Burden < 0.2 VA per current circuit at In. Typical power consumption: < 3 W. Isolation 2.5 kV RMS between all circuits (supply, current inputs, output contacts). Operating Temperature -25°C to +55°C Storage Temperature -40°C to +85°C Mounting Standard 35mm DIN Rail (EN 60715). Housing Material Self-extinguishing thermoplastic (Polyamide PA 6.6), UL94 V-0 rated. Protection Rating IP40 (front), IP20 (terminal area). Dimensions (W x H x D) Approx. 70 mm x 122 mm x 116 mm (4 module width = 70mm). Weight Approx. 0.45 kg. Certifications CE, cULus, RoHS.