ABB SPAU 140 C Synchro-Check Relay

ABB SPAU 140 C Synchro-Check Relay Supplier and Exporter in India

ABB SPAU 140 C Replacement – REX615 Retrofit

ABB SPAU 140 C is a legacy SPACOM synchro-check relay and is no longer an active ABB product. ABB states that the product has not been active since 2012, so most current enquiries are for an existing relay replacement, matching spare, shutdown requirement or modernisation of an older synchronising panel.

ABB officially includes SPAU 140 C in its SPACOM-to-REX615 Relay Retrofit Program. The program uses a REX615 relay together with a retrofit connector kit and is intended to reduce major rewiring and shutdown time when replacing supported SPACOM relays.

For an ABB SPAU 140 C replacement or REX615 retrofit enquiry, please send:

• Complete SPAU 140 C order code
• Clear photograph of the existing relay nameplate
• 100 V or 110 V rated voltage
• 50 Hz or 60 Hz
• Auxiliary supply voltage
• Existing relay settings, if available
• Required quantity
• Destination country

REX615 should not be selected only from the SPAU 140 C model number. Existing voltage inputs, breaker closing logic, external control signals, auxiliary supply and settings should be checked before finalising the retrofit.

ARP IMPEX handles requirements for ABB SPAU 140 C replacement relays, legacy SPACOM spares and SPAU 140 C to REX615 retrofit projects from India.

Description

ARP IMPEX supplies and exports ABB SPAU 140 C synchro-check relays for existing substations, switchgear panels, bus coupler panels, synchronising applications and replacement requirements.

SPAU 140 C is a voltage-measuring relay used when two electrical systems or two sections of a network are to be connected. Before allowing the circuit breaker to close, the relay checks whether the voltages on both sides meet the selected conditions for voltage magnitude, phase-angle difference and frequency difference.

The relay also provides a voltage-check function. This is used when a dead bus or line needs to be connected to an energised section of the network. SPAU 140 C has two similar operating stages, allowing closing conditions to be checked for two separate circuit breakers.

Because SPAU 140 C is now a legacy product, buyers normally search for it when they need:

• Exact SPAU 140 C replacement
• Matching spare for existing switchgear
• Synchro-check relay replacement
• Plant shutdown spare
• Existing synchronising panel maintenance
• SPAU 140 C to REX615 retrofit

If you are looking for an ABB SPAU 140 C supplier in India, SPAU 140 C price, synchro-check relay replacement or a discontinued ABB SPACOM relay, send us the existing relay nameplate for checking.

Request a Quote for ABB SPAU 140 C

For pricing and availability, please share:

• Complete ABB SPAU 140 C order code
• Required quantity
• Destination country
• Required delivery schedule
• Existing relay nameplate for replacement requirements

If the complete order code is unavailable, please mention:

• 100 V or 110 V voltage input
• 50 Hz or 60 Hz
• Auxiliary supply voltage
• Original SPAU 140 C or REX615 retrofit requirement

For legacy relay requirements, the existing nameplate is normally the quickest way to start checking the correct version.

Why Buy ABB SPAU 140 C from ARP IMPEX?

• Support for legacy ABB SPACOM relay enquiries
• Part-code and nameplate checking before quotation
• Matching spare and replacement requirements
• Quotations for single units and multiple quantities
• Support for discontinued ABB relay requirements
• Assistance with SPAU 140 C to REX615 retrofit enquiries
• Technical datasheets with quotation
• Export packing and international shipping assistance
• Supply support for utilities, EPC contractors and industrial maintenance buyers

ABB SPAU 140 C Model and Product Status

SPAU 140 C is one specific ABB synchro-check relay model, not a product family containing several separate models.

It belongs to ABB’s older SPACOM / SPAU range and uses the SPCU 3D45 synchro-check module. ABB classifies SPAU 140 C as a legacy product that has been inactive since 2012.

• Brand: ABB
• Series: SPACOM / SPAU
• Model: SPAU 140 C
• Product type: Synchro-check and voltage-check relay
• Product status: Legacy / not active since 2012
• Main purpose: Checking circuit-breaker closing conditions between two electrical systems

Most SPAU 140 C enquiries today are therefore related to existing installations rather than new projects.

Technical Specifications

• Brand: ABB
• Series: SPACOM / SPAU
• Model: SPAU 140 C
• Product type: Synchro-check relay
• Product status: Legacy / not active since 2012
• Main functions: Synchro-check and voltage check
• Number of voltage inputs: 3
• Rated voltage: 100 V or 110 V
• Rated frequency: 50 Hz or 60 Hz, depending on order
• Permitted frequency range: 45–65 Hz
• Continuous voltage withstand: 2 × rated voltage
• Synchro-check voltage-difference setting: 0.02–0.4 × Un
• Phase-angle difference setting: 5–50°
• Frequency-difference setting: 0.02–0.25 Hz
• Upper voltage threshold: 0.5–1.0 × Un
• Voltage-check lower threshold: 0.1–0.8 × Un
• Voltage-check operating time: 0.1–20 s
• Breaker operating-time compensation: Available
• Two operating stages: Available
• External blocking/control inputs: Available
• Control and alarm outputs: Available
• Output contact rated voltage: Up to 250 V AC/DC
• Serial communication: Fibre-optic SPA bus
• Communication speed: 4800 or 9600 baud
• Wide auxiliary supply: 80–265 V AC/DC
• Low DC auxiliary supply: 18–80 V DC
• Self-supervision: Built-in
• Front protection when flush mounted: IP54
• Approximate weight: 3 kg

These values are taken from ABB’s SPAU 140 C technical documentation. The rated frequency and auxiliary supply depend on the complete order code.

Features

• Synchro-check function
• Voltage-check function
• Two identical operating stages
• Checking of two separate circuit-breaker closing conditions
• Voltage magnitude comparison
• Phase-angle difference checking
• Frequency-difference checking
• Dead-bus / live-bus voltage checking
• Breaker operating-time compensation
• External blocking inputs
• External closing-request inputs
• Breaker closing permission/command output
• Measured voltage indication
• Frequency measurement
• Phase-angle difference measurement
• SPA serial communication
• Fibre-optic substation communication
• Continuous relay self-supervision
• 100 V and 110 V voltage-input options
• 50 Hz and 60 Hz versions
• Different auxiliary supply versions

ABB specifically states that both operating stages can provide synchro-check and voltage-check functions.

Applications

ABB SPAU 140 C is commonly found in:

• Synchro-check applications
• Synchronizing panels
• Bus coupler circuit breakers
• Bus section circuit breakers
• Connecting two electrical networks
• Connecting two energised bus sections
• Dead-bus to live-bus closing
• Line-to-bus connection
• Substation circuit-breaker closing supervision
• Medium-voltage switchgear
• High-voltage substation control panels
• Power distribution substations
• Industrial substations
• Existing ABB SPACOM panels
• Legacy switchgear maintenance
• Plant shutdown spare requirements
• Existing SPAU 140 C replacement
• SPAU 140 C to REX615 retrofit projects

ABB describes the main application as checking conditions when two separate networks or electrically interconnected network sections are connected, and voltage checking when an isolated bus or line is connected to an energised network section.

ABB SPAU 140 C Replacement

Replacement is now one of the main commercial requirements for SPAU 140 C.

Buyers may require:

• Original SPAU 140 C spare
• Matching legacy relay
• Replacement for a failed unit
• Emergency shutdown spare
• Spare for an existing synchronising panel
• Modern replacement for an old SPACOM installation

For an ABB SPAU 140 C replacement relay, send:

• Complete ABB order code
• Clear nameplate photograph
• Required quantity
• Destination country

For an exact legacy replacement, also confirm:

• 100 V or 110 V rated voltage
• 50 Hz or 60 Hz
• Auxiliary supply
• Existing external inputs
• Circuit-breaker closing arrangement

ABB’s historical ordering information shows SPAU 140 C variants for both 50/60 Hz and the two main auxiliary-supply ranges, making the full order code important when matching an existing unit.

ABB SPAU 140 C Replacement with REX615

ABB officially supports SPAU 140 C in its SPACOM-to-REX615 retrofit program.

The program includes:

• ABB REX615 relay
• Retrofit connector kit
• Documentation
• Configuration support options
• Installation support equipment where required

ABB states that the program is intended to reduce major new wiring and minimise shutdown time while moving supported SPACOM applications to the newer REX615 platform.

A SPAU 140 C to REX615 retrofit may be considered when:

• Original SPAU 140 C availability is difficult
• The existing relay has failed
• The synchronising panel is being modernised
• Long-term relay support is required
• IEC 61850 communication is being introduced
• Additional monitoring or control functions are required

Before finalising the retrofit, check:

• Existing three voltage inputs
• Rated voltage
• Auxiliary supply
• Closing-permission contacts
• Closing-command outputs
• External blocking inputs
• Breaker operating times
• Voltage-difference setting
• Frequency-difference setting
• Phase-angle setting
• Existing panel wiring

For an ABB SPAU 140 C to REX615 replacement enquiry, send the existing SPAU 140 C nameplate and available relay settings.

Information Required for ABB SPAU 140 C Quotation

For most enquiries, please send:

• Complete ABB SPAU 140 C order code
• Clear relay nameplate photograph
• Required quantity
• Destination country
• Required delivery schedule

If the complete order code is unavailable:

• 100 V or 110 V rated voltage
• 50 Hz or 60 Hz frequency
• Auxiliary supply voltage
• Original SPAU 140 C or REX615 retrofit requirement

For retrofit projects, existing settings or synchronising-panel drawings can also help with the initial review.

ARP IMPEX accepts enquiries against an ABB relay order code, relay nameplate, BOQ or existing switchgear information.

Contact us for ABB SPAU 140 C price, SPAU 140 C synchro-check relay replacement, discontinued ABB SPAU 140 C availability, ABB synchro-check relay supplier in India, legacy SPACOM spare or SPAU 140 C to REX615 retrofit quotation from India.