ABB
REF 542 PLUS 2RCA029395 | ABB Multifunction Protection and Control Relay
In stock, ready to ship
Manufacturer: ABB
Product No.: REF542PLUS 2RCA029395
Product Type: Relay
Product Origin: Sweden
Payment: T/T
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months
Yes, we provide a 30-day money-back guarantee for all purchases.
Yes, all items come with a 12-month warranty from the date of shipment.
ABB REF542PLUS (2RCA029395)
Multifunction Protection and Control Relay for Medium-Voltage Applications
Product Overview
The REF542PLUS (Part No. 2RCA029395) is a compact, microprocessor-based multifunction protection and control unit developed by ABB for medium-voltage switchgear systems. Ideal for use in industrial power networks, substations, and infrastructure automation, the REF542PLUS integrates protection, control, measurement, and monitoring into a single, modular device.
Technical Specifications
| Attribute | Specification |
|---|---|
| Model | REF542PLUS |
| Part Number | 2RCA029395 |
| Rated Voltage | 110–230 V AC/DC |
| Protection Functions | Overcurrent (directional & non-directional), Earth fault, Motor protection, Voltage-dependent tripping, Harmonic restraint |
| Measurement Accuracy | Voltage: ±0.5%, Current: ±1% |
| I/O Configuration | 16 Digital Inputs, 8 Digital Outputs, 4 Analog Inputs |
| Communication Protocols | IEC 61850, Modbus TCP, Profibus DP |
| Display Interface | Graphical LCD with backlight, integrated HMI |
| Cybersecurity Features | Role-based access control, Event logging with digital signatures |
| Operating Temperature | –25°C to +70°C |
| Ingress Protection | IP54 (front), IP20 (terminals) |
| Compliance Standards | IEC 60255, UL 1053, SIL 2 |
| Dimensions (W × H × D) | 54 × 119 × 96 mm |
| Weight | 5.0 kg |