ABB REM543 Motor Terminal

ABB REM543 Motor Terminal Supplier and Exporter in India

ABB REM543 Legacy Spare, Replacement and Motor Protection Enquiries

ABB REM543 is a legacy machine protection terminal used for motors, generators and generator-transformer units. ABB lists REM543 as not active since 2022. For an existing unit, the complete order code, hardware version and nameplate should be checked before selecting a replacement.

Description

ARP IMPEX supplies and exports ABB REM543 motor and machine protection terminals for industrial motor protection, generator protection and existing ABB RE500 installations.

REM543 was developed for protection, control, measurement and supervision of rotating machines. ABB used it for large or important medium-voltage synchronous and asynchronous motors, including motors driving pumps, mills, crushers and other critical industrial equipment. The same terminal was also applied to generator and generator-transformer units in small and medium-sized diesel, hydro and steam power plants.

The terminal combines several motor protection functions in one unit. Depending on the installed configuration, REM543 can cover thermal overload, motor starting and stall supervision, phase unbalance, earth fault, short circuit, undercurrent and other abnormal motor operating conditions. Generator protection functions are also available within the platform.

ABB supplied REM543 with different hardware and software configurations, so the model number alone is not enough to identify an exact unit.

For ABB REM543 price and availability, send the complete ABB hardware/order number, clear nameplate photograph, quantity and destination country. ARP IMPEX can assist with part-code checking and international supply enquiries.

Technical Specifications

• Brand: ABB
• Series: REM54x / RE500
• Model: REM543
• Product type: Machine/motor protection terminal
• Product status: Not active since 2022
• Main use: Protection and control of motors and generators
• Binary inputs: 15
• Output relays: 12
• Trip circuit supervision: Available
• Current measurement: Conventional CTs or supported current sensors
• Voltage measurement: VTs or supported voltage dividers
• RTD inputs: Optional
• Protection functions: Depend on selected configuration
• Measurement functions: Current, voltage, frequency, power and related electrical values
• Control: Local and remote switching control
• Communication: SPA, LON, Modbus and Profibus arrangements depending on configuration
• IEC 61850: Supported through the applicable SPA-ZC 400 communication adapter

The complete hardware number should be checked for replacement enquiries because ABB supplied REM543 in several input, measurement and auxiliary-supply arrangements.

Features

• Motor thermal overload protection
• Motor short-circuit protection
• Earth-fault protection
• Negative phase-sequence / unbalance protection
• Motor start-up supervision
• Stall protection
• Cumulative motor start supervision
• Undercurrent protection
• Phase reversal protection
• Generator protection functions depending on configuration
• Temperature monitoring with optional RTD inputs
• Local and remote control
• Programmable logic for interlocking and automation
• Measurement and condition-monitoring functions
• Communication with higher-level automation systems

The actual functions in an installed REM543 should be confirmed from its configuration rather than assumed from the model designation.

Applications

ABB REM543 can be used for:

• Medium-voltage motor protection
• Large asynchronous motors
• Synchronous motors
• Critical industrial motor drives
• Pump motors
• Mill motors
• Crusher motors
• Process-industry motor protection
• Generator protection
• Generator-transformer protection
• Diesel power plants
• Hydro power plants
• Steam power plants
• Motor control and supervision
• Marine and offshore applications

ABB specifically identifies pumps, mills and crushers among motor applications and also lists REM543 for generator and generator-transformer units. The REM54x range was certified for marine and offshore applications as well.

ABB REM54x Machine Protection Terminal Family

The ABB REM54x family covers REM543 and REM545. Both use the same general machine-protection platform but have different I/O capacity.

ABB REM543

REM543 is the smaller I/O version.

• 15 binary inputs
• 12 output relays
• Optional RTD inputs
• Motor and generator protection functions depending on configuration

ABB REM545

REM545 provides a larger I/O arrangement for applications needing more control, indication and interlocking points.

• 25 binary inputs
• 18 output relays
• Optional RTD inputs
• Extensive motor and generator protection capability

Although REM543 and REM545 belong to the same family, they should not automatically be treated as interchangeable. The existing I/O, measuring inputs, hardware version, and application configuration need to be checked.

ABB REM543 Replacement

ABB REM543 is a legacy product, so an exact existing unit should first be identified from its nameplate and hardware details.

For an ABB REM543 replacement or legacy spare enquiry, please provide:

• Complete ABB REM543 hardware/order number
• Clear nameplate photograph
• Hardware or software revision, if available
• Quantity
• Destination country
• Required delivery date

ABB currently lists a Maintenance Exchange Unit service for REM543 version 1.5. ABB states that this service can provide a newer replacement unit with the existing customer-specific configuration converted for the replacement.

Why Buy ABB REM543 from ARP IMPEX?

ARP IMPEX supplies ABB protection and control products for international requirements.

We can assist with:

• ABB REM543 part-code checking
• Hardware version identification
• Relay nameplate matching
• REM543 legacy spare enquiries
• REM543 / REM545 requirements
• Motor protection relay enquiries
• Generator protection terminal enquiries
• Single and multiple quantities
• ABB technical documentation
• Export packing
• International shipping support

We handle enquiries from industrial plants, utilities, power plants, EPC contractors, OEMs, panel builders, maintenance companies and electrical traders.

Request a Quote for ABB REM543

For ABB REM543 price and availability, please send:

• Complete ABB REM543 part/order number
• Clear nameplate photograph
• Quantity required
• Destination country
• Required delivery date

If the complete code is not readable, send clear photographs of the front panel and nameplate.

Send your ABB REM543 part code, quantity and destination country to ARP IMPEX for availability, part-code checking and export quotation.