8 in stock
Protection Relay ABB REX521GHHPSH50G 291117 Feeder Control
Condition:
USED
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Delivery
Estimated between Tuesday, September 22 and Thursday, September 24
Returns
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ABB REX521GHHPSH50G 291117
Reliable and proven ABB REX521 multi-function protection relay for medium voltage feeder applications, refurbished and tested for immediate deployment in substation and industrial power systems.
| Brand | ABB |
| Model | REX521GHHPSH50G 291117 |
| Voltage | 110-240V AC/DC auxiliary supply |
| Country of Origin | Sweden |
| Weight | 3.5 kg |
| Dimensions | 220 x 175 x 235 mm |
| Warranty | 12 months (used unit) |
| Certifications | CE, IEC 60255, IEEE C37.90 |
| SKU / MPN | REX521GHHPSH50G 291117 |
| What’s in the box | REX521 protection relay unit, mounting hardware, terminal blocks, user documentation CD |
| Relay Type | Numerical Feeder Protection Relay |
| Protection Functions | Overcurrent, Earth Fault, Distance, Thermal, Breaker Failure |
| Communication | IEC 61850, Modbus, DNP3, SPA, LON |
| Analog Inputs | 4 current + 4 voltage channels |
| Binary Inputs/Outputs | Configurable BI/BO with programmable logic |
| Display | Integrated HMI LCD with keypad |
Key benefits: Multi-function protection in one unit, IEC 61850 communication, proven field reliability, flexible configuration, cost-effective used alternative, easy integration into existing SCADA systems
Typical applications: Medium voltage feeder protection, transformer differential backup, motor protection, substation automation, industrial power distribution, generator protection auxiliary
Lifecycle: Mature legacy product, ABB supports with spares and firmware updates, widely deployed in installations since early 2000s
1 review for Protection Relay ABB REX521GHHPSH50G 291117 Feeder Control
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Steven R. –
Arrived in perfect condition. Ran diagnostics, all outputs nominal.