ABB REU513 Overvoltage and Undervoltage Relay

ABB REU513 Overvoltage and Undervoltage Relay Supplier and Exporter in India

ABB REU513 Legacy Voltage Protection Relay – Price and Availability

ABB REU513 is a combined overvoltage and undervoltage protection relay used for voltage supervision of feeders, busbars, generators, motors and transformers. ARP IMPEX supplies and exports ABB REU513 voltage protection relays for existing switchgear, substations, industrial plants and replacement requirements. For price and availability, send the complete ABB part number, relay nameplate, quantity and destination country.

Description

ABB REU513 is a numerical relay used where both overvoltage and undervoltage protection are required from the same unit.

It measures phase-to-phase voltage through conventional voltage transformers and supervises the system against voltage rising above or falling below the selected limits. ABB used the REU513 mainly for busbar and feeder voltage protection in utility substations and industrial distribution systems. It can also be applied to generators, motors and transformers.

REU513 can work with three-phase voltage measurement or be set for single-phase operation. It also includes positive-phase-sequence voltage supervision, making it useful for applications where abnormal or unbalanced voltage conditions need to be detected.

For an existing installation, buyers looking for an ABB REU513 replacement, legacy spare, or old stock relay should send the exact product code and a clear photograph of the nameplate. This helps avoid supplying a relay with the wrong auxiliary supply or hardware arrangement.

Technical Specifications

• Brand: ABB
• Model: REU513
• Product type: Combined overvoltage and undervoltage relay
• Product status: Not active since 2009
• Main function: Voltage protection and supervision
• Voltage measurement: Phase-to-phase voltage
• Rated voltage inputs: 100 / 110 / 115 / 120 V
• Rated frequency: 50 / 60 Hz
• Overvoltage protection: Available
• Undervoltage protection: Available
• Positive-phase-sequence voltage protection: Available
• Operation: Single-phase or three-phase
• Circuit-breaker failure protection: Included
• Disturbance recording: Included
• Settings: Stored in non-volatile memory
• Self-supervision: Continuous internal monitoring

The full ABB order code should be checked before confirming a legacy REU513 spare.

Features

• Combined overvoltage and undervoltage protection
• Single-phase or three-phase voltage supervision
• Separate overvoltage and undervoltage operating stages
• Positive-phase-sequence voltage monitoring
• Circuit-breaker failure protection
• Fault and disturbance recording
• Configurable trip and alarm outputs
• Two setting groups
• Voltage measurement through conventional VTs
• Settings retained during loss of auxiliary power
• Internal relay self-supervision

REU513 is useful where the panel requires a dedicated voltage protection relay without the additional feeder, motor or transformer functions found in larger multifunction protection relays.

Applications

ABB REU513 can be used for:

• Medium-voltage feeder voltage protection
• Busbar voltage supervision
• Overvoltage protection
• Undervoltage protection
• Utility substations
• Industrial power-distribution systems
• Generator voltage protection
• Motor voltage supervision
• Transformer voltage protection
• Switchgear protection panels
• Existing ABB relay installations
• Backup voltage protection

The relay can therefore be found in both utility and industrial installations where voltage needs to remain within predetermined operating limits. ABB specifically documents REU513 for distribution substations as well as generator, motor and transformer protection applications.

ABB REU513 and REU523

ABB also supplied the REU523 combined overvoltage and undervoltage relay.

Both REU513 and REU523 provide overvoltage and undervoltage protection, but they belong to different generations of ABB’s older numerical protection relay range.

• ABB REU513 – Combined overvoltage and undervoltage relay
• ABB REU523 – Combined overvoltage and undervoltage relay

REU513 itself is a specific relay model rather than a family containing several C1, C2 or similar variants.

If you need an exact REU513 for an existing panel, use the complete part number from the installed relay rather than selecting a unit only from the model name.

ABB REU513 Legacy Spare and Replacement Enquiries

ARP IMPEX can assist with enquiries for:

• ABB REU513 price
• ABB REU513 availability
• REU513 legacy spare requirements
• Existing relay part-code checking
• Old relay identification
• Replacement enquiries
• Single-piece requirements
• Multiple-quantity requirements
• ABB relay documentation
• Export packing and international shipment

For an ABB REU513 legacy spare or replacement requirement, please send:

• Complete ABB REU513 part/order code
• Clear nameplate photograph
• Quantity required
• Destination country
• Required delivery date

Why Buy ABB REU513 from ARP IMPEX?

ARP IMPEX supplies ABB protection relays for electrical contractors, industrial plants, utilities, EPC companies, panel builders, maintenance companies and international traders.

For discontinued ABB relays such as REU513, we can assist with part-number checking, legacy spare availability and export quotation based on the exact requirement.

Request a Quote for ABB REU513

Looking for an ABB REU513 supplier in India, checking ABB REU513 price, or trying to source an old REU513 relay for an existing panel?

Send us the complete relay code, nameplate photograph, quantity and destination country.

Send your ABB REU513 part number to ARP IMPEX for availability, price and export quotation.