The ABB REJ603BBB10NN3XC is a self-powered numerical relay designed for use in distribution networks, focusing on protective functions against overcurrent and earth faults. It is essential to ensure that individual load or branch circuit protections comply with local electricity authority regulations before implementing settings and coordination for overcurrent and earth fault protection.
Features
Type: Self-powered feeder protection relay
Application: Selective short-circuit and earth-fault protection in secondary distribution networks, particularly for small transformers in utilities and industries
Power Source: Powered by current transformers, suitable for remote locations without auxiliary power
Protection Functions
Non-Directional Overcurrent Protection: Detects overcurrent conditions without regard to current direction
Earth-Fault Protection: Monitors for earth faults, providing necessary trip functions
Thermal Overload Protection: Protects against thermal damage due to prolonged overcurrent
Inrush Current Detection: Identifies inrush currents during equipment start-up
Remote Trip Capabilities: Allows remote disconnection of circuits for safety
Measurement Functions: Provides insights into current and fault conditions
Operating Characteristics
Start Current: The minimum current level at which the relay begins to operate, set as I>, I>>, Io>, or Io>>. The relay should start when the current exceeds 1.3 times the set start current.
Definite Minimum Time Characteristic (DMT): After starting under fault conditions, the relay operates only after a set minimum time, regardless of fault current magnitude (time settings: t>, t>>, to>, to>>).
Inverse Definite Minimum Time Characteristic (IDMT): Once started, the relay’s operating time varies inversely with the magnitude of the fault current. Higher fault currents result in shorter operating times. This characteristic can be adjusted using a time multiplier setting (k, ko).
Additional Features
Low-Energy Trip Output: Allows for bi-stable outputs to trip circuit breakers efficiently
Hand-Reset Electromechanical Flag: Provides a manual reset feature for the relay
USB Port: Enables powering up the relay and accessing event/fault information when CT power is unavailable
Extensive Self-Supervision: Monitors relay hardware and software to ensure reliability
Answer 1: PLC DCS Pro Ltd. collaborates with over 50 countries worldwide. As a leading supplier in China, we can provide significant discounts to customers based on market demand.
Question 2: What Is The Warranty Period?
Answer 2: We offer a standard one-year warranty for all new and original items.
Question 3: What Payment Methods Do We Accept?
Answer 3: 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.
Question 4: What Shipping Methods Do We Use?
Answer 4: 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.
Question 5: What Is Our Delivery Time?
Answer 5: 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.
Question 6: How Do We Package The Goods?
Answer 6: 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.
Question 7: How Can Customers Contact Us And Request A Quote?
Answer 7: 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.
Warranty Conditions
At PLC DCS Pro Ltd., we are committed to ensuring the quality of our products. Our one-year warranty provides coverage for any defects in material or workmanship, excluding damages caused by deliberate misuse.
🛡️Coverage Details:
This warranty encompasses all instances of product malfunction or failure due to inherent manufacturing flaws, with the exception of intentional damage.
📝Claim Process:
To avail of warranty services, please notify us of any quality-related issues within the warranty period. We may conduct online troubleshooting and examination as needed.
🚚Shipping Assistance:
We understand the importance of prompt service. Therefore, we cover return shipping costs for warranty-related returns within the first month of supply. Within three months of supply, we cover one-way shipping costs for warranty-related returns. After three months, the customer is responsible for shipping costs both ways.
🚫Exclusions:
Unauthorized modifications, repairs, or misuse of the product.
