ABB REF542PLUS 2RCA029395 A0031 Dual-Breaker Protection Relay

About 

ABB's REF542PLUS 2RCA029395 A0031 is a dual-breaker protection relay designed for medium voltage switchgear applications. It integrates protection, control, measurement, and monitoring functions into a single device, making it ideal for use in industrial power grids, substations, and infrastructure automation systems.

Voltage Range: 110–230 V AC/DC auxiliary power supply
Protection Functions: Directional/non-directional overcurrent, ground fault, overvoltage trip, harmonic control, etc.
Measurement Accuracy: Voltage ±0.5%, Current ±1%
I/O Configuration: 16 × DI (digital inputs), 8 × DO (digital outputs), 4 × AI (analog inputs)
Communication Protocols: IEC 61850, Modbus TCP, Profibus DP, etc.
Interface and Display: Graphical backlit LCD display + integrated HMI supporting local diagnostics and control
Operational Response: Fast action ≤ 20 ms; PLC built-in logic execution time < 10 ms

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Warranty: one year

Condition: brand new and original

Delivery time: Ship Today

Payment term: T/T

Shipping

1. For the in stock items, we will ship to you within 3 days after received payment
2.We can shipping all over the world via DHL,UPS,FEDEX,TNT and EMS.
3.If you have shipping agent please tell us before shipment.
4.We will packing the parts with strong box, if you have any special needs, please notify to us.
5.We usually ship up to before 4:30 PM, after shipment we will sent the tracking number to you. It will takes 7~15 days to received the packages.
6.When you received the package, please email to us.

Whatsapp:+86 17359287459    Email:sales6@askplc.com

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