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ABB REF543KM127 AAAA RELAYS (REF543)

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ABB REF543KM127 AAAA RELAYS (REF543) Specification

Connector Type
Plug-in Terminal Connectors

Rated Current
1 or 5 A (RMS)

Operating Temperature
-25C to +55C

Features
Feeder Protection, Multiple Communication Protocols, Programmable Functions, Disturbance Recorder

Phase
Three Phase / Single Phase Compatible

Power Supply
AC/DC Universal Input

Noise Level
Silent Operation

Current Range
1/5 A (Programmable)

Output Type
Relay Contacts (NO/NC)

Working Temperature
-25C to +55C

Cooling Method
Natural Air Cooling

Application
Feeder Protection, Voltage/Current Monitoring

Product Type
Protection Relay

Output Frequency
50/60 Hz

Input Voltage
80-265 V AC / 110-250 V DC

Voltage Protection
Yes (Integrated Over/Under Voltage Protection)

Efficiency
High Operating Efficiency

Material
Polycarbonate, Metal

Storage Temperature
-40C to +85C

Weight
Approx. 4.8 kg

Firmware Update
Field Upgradable

Standards Compliance
IEC 60255, IEC 61000 Series

Model Number
REF543KM127 AAAA

Series
REF543

Event Recording
Yes (Fault and Disturbance Recorder)

Time Synchronization
SNTP/NTP Supported

Display Type
Backlit LCD Display

Degree of Protection
IP54 (Front), IP20 (Rear)

Mounting Type
Panel Mounted

LED Indication
Status and Trip Indication

Dimensions (W x H x D)
177 x 177 x 216 mm

Communication Ports
RS232/RS485, Fibre Optic, Profibus, SPA, IEC 60870-5-103

Number of Inputs
Up to 12 Digital / 8 Analog Inputs

Number of Outputs
Up to 8 Digital Outputs

Relay Output Type
Electromechanical

About ABB REF543KM127 AAAA RELAYS (REF543)

Experience unmatchable protection and monitoring with the ABB REF543KM127 AAAA Relay from the elite REF543 series. Designed for panel mounting, this first-class relay features integrated, cost-effective solutions including up to 12 digital and 8 analog inputs, multiple communication ports, and a backlit LCD display for seamless operation. Benefit from superior reliability with IEC compliance, advanced event recording, and field-upgradable firmware. Enjoy a bargain without compromisethis device delivers first-rate efficiency and robust voltage protection, making it the lowest-priced, high-quality choice for feeder protection and voltage/current monitoring.

Optimal Application Versatility for Professional Settings

The ABB REF543KM127 AAAA Relay is expertly engineered for general and specific use in industrial and utility environments. Designed for panel-mounted installation, its robust protection features make it suitable for feeder protection and comprehensive voltage and current monitoring. The relays surface-of-application versatility ensures reliable performance on control panels across substations or distribution boards, confirming its adaptability for wide-ranging professional applications.

Prompt Delivery and Secure Packaging Across Domestic Markets

The ABB REF543KM127 AAAA Relay is delivered promptly to all major domestic markets, ensuring efficient transportation and minimal order processing times. Each unit is carefully packaged to guarantee damage-free arrival, maintaining its elite quality. Customers benefit from transparent communication throughout the ordering and delivery process, reinforcing trust in the suppliers professionalism and commitment to first-class service.

FAQs of ABB REF543KM127 AAAA RELAYS (REF543):

Q: How is the ABB REF543KM127 AAAA Relay typically used in industrial settings?

A: The relay is primarily used for feeder protection and for monitoring voltage and current in both industrial and utility environments, ensuring system reliability and safety.

Q: What makes the ABB REF543KM127 AAAA Relay a cost-effective solution?

A: The relay combines advanced features, multiple communication options, programmability, and robust compliance standards at a highly competitive price, offering unmatchable value for your investment.

Q: Where can the ABB REF543KM127 AAAA Relay be mounted?

A: This relay is designed for panel-mounted applications, making it suitable for control panels in substations, switchboards, and various industrial setups.

Q: When can I expect delivery after placing an order?

A: Orders are processed efficiently, and the relay is transported to major domestic locations promptly. Customers are kept informed of delivery timelines throughout the order fulfillment process.

Q: What are the benefits of choosing the REF543KM127 AAAA model?

A: The relay offers first-class protection, easy integration thanks to multiple communication protocols, reliable event recording, and a rugged design for dependable operation in challenging environments.

Q: How do I update the firmware of the device?

A: Firmware updates for the relay can be performed in the field, allowing you to easily maintain and upgrade its functions without removing it from service.

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