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REF542 PLUS | ABB Multifunction Protection and Switchbay Control Unit

Sku: REF542PLUS
Country Of Origin: Sweden
Vendor: ABB
Type: Relay

In stock!

100% Original and Authentic

100% Brand New, Ready to ship

Support Refund, 7X24h Service

Product description

Overview

The ABB REF 542plus is a multifunctional protection and switchbay control unit tailored for medium-voltage systems. It combines protection, measurement, control, and communication in a single device, reducing system complexity and cost. Built on a modular platform, it supports flexible configurations and integrates easily into substation automation and smart grid environments.

Technical Specifications

Analog Input Channels

Parameter	Specification
Current Input	Rated 1A or 5A
Voltage Input	Rated 100V (supports 110V)
Frequency	50/60 Hz
Thermal Capacity (Current)	250 In peak, 100 In for 1s
Thermal Capacity (Voltage)	2 Un / √3 continuous
Consumption (Current)	≤ 0.1 VA at In
Consumption (Voltage)	≤ 0.25 VA at Un

Binary Inputs & Outputs

Relay Type	Inputs	Outputs	Voltage	Load Current
Mechanical Relays	14	6 Power, 2 Signal, 1 Watchdog	250V AC/DC	12A (power), 2A (signal)
Static Relays	14	4 Power, 2 Signal, 1 Watchdog	48–265V DC	12A (power), 0.3A (signal)

Communication Interfaces

Interface	Type
HMI Control Unit	RS-232 (optical/electrical), RS-485
Central Unit	RS-485 (to HMI), RS-232 (firmware)
Optional Protocols	IEC 61850, MODBUS RTU (dual), SPA BUS, LON, IEC 60870-5-103

Power Supply

Unit	Voltage Range	Power Consumption
Central Unit	110V/220V DC (±15%), or 48–220V DC	≤18 W
HMI Control Unit	48–110V DC or 110–220V DC (±15%)	≤6 W

Environmental & Enclosure Ratings

Parameter	Specification
Operating Temp	-5°C to +55°C
Storage Temp	-20°C to +70°C
Humidity	Up to 95% (non-cond.)
Central Unit Enclosure	IP20
HMI (Front/Rear)	IP54 / IP22

Applications

Medium-voltage substations
Smart grid and distribution automation
Industrial and utility power networks
Compact and scalable protection and control in retrofit or new installations

Related Tags :

Multifunction Protection and Switchbay Control Unit REF542 Plus Relay

Frequently Asked Questions

Question 1: Is Our Price Competitive?

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.