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ABB REX521GHHPSH51G Feeder Protection Relay
ABB REX521GHHPSH51G Feeder Protection Relay - Image 2
ABB REX521GHHPSH51G Feeder Protection Relay - Image 3

ABB REX521GHHPSH51G Feeder Protection Relay

Original price was: $10,000.00.Current price is: $1,125.00.

Product NO：REX521GHHPSH51G

Brand：ABB

Delivery time:  In stock

Product status:   Brandnew

Product situation: one year warranty, Origin of Manufacture

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Description

The ABB REX521GHHPSH51G is an all-in-one Feeder Protection Relay and Control Terminal from ABB’s REX 521 series.

Designed for protection, control, measurement, and supervision of medium-voltage power distribution networks, utility substations, and industrial power plants, the REX 521 provides multi-stage non-directional and directional overcurrent/earth-fault protection, circuit breaker control, and continuous power quality monitoring.

 

Technical Specifications

Parameter Specification
Manufacturer ABB
Product Platform REX 521 Feeder Terminal Series
Order / Type Code REX521GHHPSH51G
Device Function Feeder Protection, Measurement, Control & Supervision
Auxiliary Power Supply High-voltage range: 80–265 V AC / DC (or low-voltage option 18–80 V DC)
Analogue Channels Multi-channel CT/VT inputs (1A/5A current inputs, 100V–120V voltage inputs)
Binary I/O Configurable digital inputs and output relays for tripping/interlocking
Communication Protocols SPA-bus, LON-bus, IEC 60870-5-103, Modbus RTU, Profibus DP
Configuration Tool CAP 501 / CAP 505 Relay Setting & Tool Suite
Operating Temperature -10°C to +55°C (14°F to 131°F)
Mounting / Form Factor Flush-mounted, semi-flush, or 19-inch rack panel enclosure (IP54 front panel)

 

Core Features & Operating Capabilities

  • Comprehensive Feeder Protection: Provides multi-stage short-circuit overcurrent protection (I>, I>>, I>>>), earth-fault protection (I_0>, I_0>>), thermal overload monitoring, and auto-reclosing logic.
  • Integrated Circuit Breaker Control: Allows local and remote breaker control with trip circuit supervision (TCS), breaker failure protection (50BF), and latching trip functionality.
  • Measurement & Power Quality Diagnostics: Continuously monitors phase currents, neutral current, system frequency, active/reactive power, and total harmonic distortion (THD).
  • Fault & Disturbance Recording: Onboard memory logs up to 100 event records with 1 ms timestamp resolution, along with disturbance recording waveforms for post-fault root-cause analysis.
  • Flexible Substation Automation Integration: Features dedicated serial/bus communication interfaces to integrate seamlessly into SCADA, DCS, or station control systems.

 

Related ABB Protection & Control Hardware

  • REF541 / REF543 — Advanced Feeder Terminals for complex distribution bays.
  • REF615 / REM615 — Relion Series Dedicated Feeder / Motor Protection Relays.
  • REJ603 — Self-powered Overcurrent and Earth-Fault Relay.
  • CAP 501 / CAP 505 — ABB Protection & Control Setting Tools.

At Newplcdcs, we specialize in providing high-quality spare parts for Distributed Control Systems (DCS) and Programmable Logic Controllers (PLC). Our comprehensive product portfolio includes parts from approximately 20 leading brands, such as ABB, Bently Nevada, Honeywell, GE, Yokogawa, Allen Bradley, Foxboro, Ovation, Hima, Emerson, Triconex, Woodward, ICS Triplex, Bachmann, and Schneider. This focused expertise allows us to offer in-depth solutions in the automation sector, setting us apart from many competitors and ensuring we deliver the most advanced and reliable products to our clients.

Contact Information

Frequently Asked Questions
Is our price competitive?
Newsplcdcs collaborates with over 50 countries worldwide. as a leading supplier in china, we can provide significant discounts to customers based on market demand.
What is the warranty period?
We offer a standard one-year warranty for all new and original items.
What payment methods do we accept?
We accept 100% t/t (telegraphic transfer) before shipping. for items with a lead time, a 30% deposit is required in advance, with the remaining 70% balance due before shipping. if you have an agent in china, please contact us for rmb transfer.
What shipping methods do we use?
We primarily utilize carriers such as fedex, dhl, ups, bre, etc. if you have an account with any of these carriers, you can arrange the shipping yourself. additionally, we offer free shipping to china freight forwarders.
What is our delivery time?
Typically, delivery takes around 1-3 days after receiving the advance payment. for items with a quoted lead time, delivery will occur as per the specified lead time.
How do we package the goods?
Our packaging process involves multiple layers of protection. initially, the product is placed in its original box, sealed with a label. then, we add a layer of bubble wrap to safeguard against collisions during transportation. finally, all products are securely packed in sturdy boxes for further protection.
How can customers contact us and request a quote?
Customers can inquire via email, whatsapp, wechat, skype, or any preferred communication platform. simply reach out to us, and we’ll promptly provide a quote tailored to your needs.

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