ABB Self Powered Feeder Protection relay Supplier
United Machinery Corporation is a reliable and experienced ABB Self Powered Feeder Protection Relay Supplier, catering to the growing demands of power utilities, substations, EPC contractors, and industrial projects. We specialize in supplying genuine ABB protection relays known for their accuracy, durability, and dependable performance in feeder protection applications.
With a strong supply network across India, Saudi Arabia, and the UAE, we serve clients in regions such as West Bengal, Bihar, Odisha, Maharashtra, Gujarat, Riyadh, Jeddah, Dubai, Abu Dhabi, and more. Our commitment to quality products, competitive pricing, and timely delivery has made us a trusted name in the industrial electrical equipment sector.
At United Machinery Corporation, we focus on understanding customer requirements and delivering the right ABB relay solutions with technical support and prompt service. Whether for new installations, upgrades, or replacement needs, we ensure efficient and hassle-free procurement for both domestic and international clients.
Product Introduction
The ABB REJ603 Self-Powered Feeder Protection Relay is a compact and highly reliable numerical protection device designed to protect distribution feeders without the need for an external auxiliary power supply. It derives its operating power directly from the current transformers (CTs), making it an ideal solution for remote, compact and retrofit installations. United Machinery is a trusted supplier of ABB REJ603 relays across West Bengal, Bihar, Odisha, Chhattisgarh, Jharkhand, Maharashtra, Rajasthan, Haryana, Madhya Pradesh, Gujarat, Assam, Tripura, Andhra Pradesh, Meghalaya, Karnataka, Manipur, Tamil Nadu, Hyderabad, and also supplies internationally to Saudi Arabia & the UAE.
Key Features of ABB REJ603 Self-Powered Feeder Protection Relay
- Self-powered design – no external auxiliary supply required
- Powered directly from CT secondary current
- Compact and lightweight construction for easy panel mounting
- Reliable overcurrent and earth fault protection
- High accuracy fault detection and fast tripping
- LED indications for healthy, trip and fault status
- Maintenance-free operation with long service life
- Suitable for new installations and retrofit projects
Technical Chart
Parameter | Typical Specification |
Relay Type | Numerical Self-Powered Feeder Protection Relay |
Power Supply | Self-powered from CT input (no external auxiliary supply) |
Protection Functions | Overcurrent (OC) & Earth Fault (EF) |
Operating Current | Derived from CT (typically 1A / 5A secondary) |
Trip Output | Relay contact for trip circuit |
Reset Method | Manual / Electrical reset |
Indicators | LED Status and Fault Indication |
Mounting Type | Flush / Panel Mount |
Operating Temperature | -10°C to +55°C |
Application Type | MV / LV feeder protection |
Available Models of ABB Self-Powered Feeder Protection Relay
REJ603 V1.5 – Self-Powered Feeder Protection Relay
This model is a compact and highly reliable relay designed for basic to mid-level feeder protection applications. It operates without any external power supply and is ideal for installations where space is limited.
Description & design details:
- Compact rectangular housing for easy panel mounting
- Standard colour: Light grey front with dark grey / black bezel
- Durable, impact-resistant plastic casing
- Front LED indicators for Power / Healthy / Trip / Fault status
- Typical panel cut-out friendly size: 120 mm (H) × 90 mm (W) × 110 mm (D)
- Lightweight, suitable for vertical or horizontal mounting
REJ603 V3.0 – Self-Powered Feeder Protection Relay (Enhanced Version)
This is the upgraded version of the REJ603 series, designed with improved processing speed and enhanced software for more stable and accurate protection.
Description & design details:
- Modern compact housing with improved heat-resistant body
- Standard colour: Industrial light grey body with dark graphite front fascia
- Brighter and clearer LED status indicatorsfor easy visibility
- Enhanced internal hardware for faster fault detection
- Improved setting accuracy and stability under fluctuating load conditions
- Typical size: 120 mm (H) × 90 mm (W) × 115 mm (D)(slightly deeper due to upgraded electronics)
- Designed for long-term operation in harsh industrial environments
Visual difference (simple comparison table)
Feature | REJ603 V1.5 | REJ603 V3.0 |
Version Type | Standard | Upgraded / Enhanced |
Housing Colour | Light grey with dark bezel | Light grey with graphite front |
LED Visibility | Standard brightness | High-brightness improved LEDs |
Size (Approx.) | 120 × 90 × 110 mm | 120 × 90 × 115 mm |
Processing Speed | Standard | Faster, improved performance |
Software | Basic stable version | Updated hardware & software |
Best Suited Applications
- Remote substations without auxiliary power supply
- Rural and outdoor distribution feeders
- Compact switchgear panels
- Ring Main Units (RMUs)
- Retrofit projects where adding auxiliary supply is difficult
- Industrial distribution panels in mines, steel plants and process industries
How ABB REJ603 Solves Common Problems
Problem: No auxiliary power available at site
REJ603 works without external supply by drawing power from CTs, ensuring protection even in remote locations.
Problem: Frequent feeder faults causing downtime
Fast overcurrent and earth fault detection isolates faults instantly, reducing equipment damage and system outages.
Problem: Complex wiring and maintenance
Self-powered design eliminates extra wiring and reduces maintenance effort and installation time.
Reasons to Choose ABB REJ603
- Proven ABB technology and field-tested reliability
- Simple installation with fewer wiring requirements
- Ideal for harsh and remote environments
- Cost-effective long-term solution for feeder protection
Top Reasons to Buy ABB REJ603 from United Machinery
- Genuine ABB products with assured quality
- Wide supply network across multiple Indian states
- Reliable export support for Saudi Arabia and UAE
- Competitive pricing and fast delivery
- Pre- and post-sales technical support
We Supply Across India and International
- West Bengal
- Bihar
- Odisha
- Chhattisgarh
- Jharkhand:Ranchi
- Maharashtra:Mumbai, Pune, Nagpur, Aurangabad
- Rajasthan:Jaipur
- Haryana:Faridabad
- Madhya Pradesh:Bhopal, Indore
- Gujarat:Ahmedabad, Surat, Vadodara
- Assam
- Tripura:Agartala
- Andhra Pradesh:Visakhapatnam
- Meghalaya
- Karnataka:Bengaluru
- Manipur:Imphal
- Tamil Nadu:Chennai, Coimbatore
- Hyderabad
- International Supply:
- Saudi Arabia:Al Jubail, Jeddah, Riyadh, Al Khobar
- UAE:Abu Dhabi, Dubai, Ruwais, Umm Al Quwain
Why Choose United Machinery for ABB Self-Powered Feeder Protection Relays?
United Machinery provides complete protection solutions with trusted sourcing, industry expertise and dependable after-sales service. We help customers select the right model, ensure proper application and deliver on time – locally and internationally.
Contact Us – United Machinery Corporation
United Machinery Corporation is a trusted ABB Self Powered Feeder Protection Relay Supplier, serving clients across India, Saudi Arabia, and the UAE. If you are looking for genuine ABB protection relays with reliable supply and technical support, our team is ready to assist you.
Phone Number – +91 90732 37992
Email Id – onlineumc9@gmail.com
