Overview
The ABB REJ603BB401NN31E Protection Relay is a self‑powered feeder protection relay, part of ABB's Relion® 600 series. This relay is specifically engineered for secondary distribution networks, where reliable fault protection is critical. It is powered directly from the current transformers (CTs) connected to the feeder, eliminating the need for an external auxiliary power supply, making it perfect for installations with limited or unavailable auxiliary voltage sources.
The REJ603 offers selective short-circuit and earth-fault protection, ensuring quick fault detection and tripping to safeguard both equipment and personnel. Its compact design and ease of installation make it well-suited for use in ring main units (RMUs), compact substations, and distribution automation projects.
Technical Data
| Parameter | Specification |
|---|---|
| Model | REJ603BB401NN31E |
| Function | Self-powered feeder protection relay |
| Dimensions | 160 × 96 × 150 mm |
| Weight | 1.9 kg |
Typical Applications
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Ring Main Units (RMUs): Ideal for compact substations requiring self-powered protection.
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Secondary Distribution Networks: Reliable fault detection without the need for auxiliary power.
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Industrial Plants: Protects feeders in chemical, paper, textile, and steel industries.
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Power Utilities: Perfect for distribution automation projects where auxiliary voltage sources are limited.
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Retrofit Projects: Replaces legacy feeder protection relays with modern ABB solutions.
FAQ
Q1: What is the ABB REJ603BB401NN31E used for?
A1: It provides selective short-circuit and earth-fault protection for medium-voltage distribution networks.
Q2: Does the REJ603 require an auxiliary power supply?
A2: No, it is self-powered via current transformers, making it ideal for installations where auxiliary voltage is unavailable.
Q3: What industries typically use the REJ603 relay?
A3: It is widely used in power utilities, industrial plants, and compact substations.
Q4: How reliable is the ABB REJ603?
A4: The REJ603 stores up to 100 fault records and operates independently of external power, ensuring dependable long-term protection.
| Brze ponude | Brzo primite cenu i dostupnost od našeg posvećenog tima za korisničku podršku. |
|---|---|
| Isporuka | Dostupna je ubrzana, teretna i međunarodna dostava. |
| Stanje | 100% novo sa originalnim pakovanjem |
| Plaćanje | Prihvatamo American Express, Discover, MasterCard, PayPal i Visa. Naš sajt je zaštićen RapidSSL-om. |
| Luka za isporuku | Šangaj, Sjamenu |
| Garancija | 12 meseci |
| Q: Da li su naše cene konkurentne? |
| A: Da, sarađujemo sa preko 50 zemalja širom sveta. Kao vodeći dobavljač u Kini, nudimo značajne popuste u skladu sa tržišnim trendovima. |
| Q: Koji je garantni rok? |
| A: Svi naši novi i originalni proizvodi dolaze sa standardnom garancijom od jedne godine. |
| Q: Koje metode plaćanja prihvatamo? |
| A: Zahtevamo 100% T/T (telegrafski transfer) uplatu pre slanja. Za artikle sa rokom isporuke, potrebno je unapred uplatiti 30% depozita, a preostalih 70% pre slanja. Ako imate predstavnika u Kini, možete preko njega organizovati RMB transfer. |
| Q: Koje metode isporuke koristimo? |
| A: Pretežno koristimo FedEx, DHL, UPS i BRE za isporuku. Ako imate nalog kod nekog od ovih prevoznika, možete direktno organizovati slanje. Takođe nudimo besplatnu dostavu do špeditera sa sedištem u Kini. |
| Q: Koje je naše vreme isporuke? |
| A: Isporuka obično traje 1-3 dana nakon prijema početne uplate. Za artikle sa rokom isporuke, slanje će se obaviti prema navedenom rasporedu. |
| Q: Kako pakujemo robu? |
| A: Obavezujemo se na bezbedno pakovanje sa višeslojnom zaštitom. Proizvodi se prvo stavljaju u originalne kutije i zapečate etiketama. Zatim se dodaje sloj mehurićaste folije za zaštitu od udara tokom transporta. Na kraju, predmeti se sigurno pakuju u čvrste kutije. |
| Q: Kako kupci mogu da nas kontaktiraju i zatraže ponudu? |
| A: Možete nas kontaktirati putem e-pošte, WhatsApp-a, WeChat-a, Skype-a ili vaše omiljene komunikacione platforme. Obratite nam se sa vašim potrebama, i pružićemo vam brzu, prilagođenu ponudu. |
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