ABB NTDI01 Digital I/O Termination Unit

1VCF750090R801 ABB REF542PLUS Numerical Relay Modbus

1VCF750090R801 ABB REF542PLUS Numerical Relay Modbus

Availability: 10 left in stock

ABB REF542PLUS 1VCF750090R801 Feeder Protection and Control Relay Product Overview The REF542PLUS (1VCF750090R801) is a high-performance numerical feeder protection and control terminal...

SKU: REF542PLUS 1VCF750090R801

Manufacturer: ABB
Product No.: REF542PLUS 1VCF750090R801
Product Type: Feeder Protection Relay
Product Origin: Switzerland
Payment:T/T, Western Union
Weight: 700g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

ABB REF542PLUS 1VCF750090R801 Feeder Protection and Control Relay

Product Overview

The REF542PLUS (1VCF750090R801) is a high-performance numerical feeder protection and control terminal designed for the sophisticated management of medium-voltage power distribution networks. This Intelligent Electronic Device (IED) integrates protection, control, measurement, and monitoring functions within a modular hardware platform. Engineered for high-speed fault detection, the REF542PLUS (1VCF750090R801) utilizes advanced microprocessor technology to execute complex logic schemes, making it an ideal solution for substation automation. It supports a wide array of communication protocols, ensuring seamless connectivity with centralized SCADA systems while providing robust protection for feeders, transformers, and industrial motors.

Detailed Technical Specifications

Manufacturer: ABB
Model: REF542PLUS
Part Number: 1VCF750090R801
Device Category: Numerical Feeder Protection and Control Relay
Protection Functions: Multi-stage overcurrent, earth-fault (directional/non-directional), thermal overload, undervoltage/overvoltage, and breaker failure protection.
Measurement Precision: Real-time monitoring of phase current, voltage, frequency, active/reactive power, and energy.
Rated Current Input: 1 A or 5 A (Selectable via configuration)
Rated Voltage Input: Standard secondary input up to 110 V AC
Nominal Frequency: 50 / 60 Hz
Auxiliary Power Supply: Universal wide-range 24–250 V DC or 48–240 V AC
Binary I/O: Multiple programmable digital input and output channels for interlocking and signaling.
Communication Protocols: IEC 61850, IEC 60870-5-103, Modbus RTU, and DNP3.
Event Recording: Integrated disturbance recorder and sequence-of-events log for high-resolution fault analysis.
Operating Temperature: -25°C to +70°C
Storage Temperature: -40°C to +85°C
Physical Dimensions: 22.4 cm x 13.5 cm x 5.8 cm (8.8 in x 5.3 in x 2.3 in)
Product Weight: 0.7 kg (1 lbs 9.1 oz)
Ingress Protection: IP20
Compliance: IEC protection relay standards, CE certified.
Tariff Code: 8528510000

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Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

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Maintenance Manager, USA

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