ABB SPAA 120 C Feeder Protection Relay

ABB SPAA 120 C Feeder Protection Relay Supplier and Exporter in India

ABB SPAA 120 C Replacement with REX615

Replacement: ABB SPAA 120 C is discontinued and is included in ABB’s official SPACOM-to-REX615 retrofit program. The existing relay version and panel details should be checked before the retrofit is finalised.

ARP IMPEX supplies and exports ABB SPAA 120 C feeder protection relays for replacement, maintenance and existing medium-voltage feeder protection panels.

SPAA 120 C belongs to ABB’s older SPACOM protection relay range. It was mainly used for short-circuit and earth-fault protection of radial distribution feeders. The relay combines phase overcurrent protection with directional earth-fault protection and also includes circuit-breaker failure protection.

The relay is commonly found in older distribution substations and industrial switchgear where SPACOM protection systems are still in service.

Since ABB lists SPAA 120 C as not active, buyers today normally need it for an existing installation rather than a new feeder project. The requirement may be an exact spare, a replacement for a failed relay, stock for an upcoming shutdown or an ABB-supported REX615 retrofit.

If you need an ABB SPAA 120 C replacement relay, send us the complete ABB order number or a clear photograph of the existing nameplate. We can check the correct version against your required quantity and destination country.

Technical Specifications

• Brand: ABB
• Series: SPACOM / SPAA
• Model: SPAA 120 C
• Product type: Feeder protection relay
• Product status: Legacy / not active since 2009
• Main application: Radial distribution feeder protection
• Phase overcurrent protection: Two-stage
• Earth-fault protection: Directional earth-fault protection
• Circuit-breaker failure protection: Built in
• Phase-current inputs: 1 A or 5 A
• Earth-fault current inputs: 1 A or 5 A
• Residual voltage input: 100 V or 110 V
• Rated frequency: 50 Hz or 60 Hz depending on version
• Communication: SPA serial communication
• Auxiliary supply: 80–265 V AC/DC or 18–80 V DC depending on version
• Self-supervision: Built-in

For an exact spare, the complete ABB order code should be checked because frequency and auxiliary supply vary between versions.

Features

• Phase overcurrent protection
• Short-circuit protection
• Directional earth-fault protection
• Low-set and high-set protection stages
• Circuit-breaker failure protection
• Trip and alarm outputs
• External blocking and control
• Fault and measured value indication
• SPA communication
• Internal relay self-supervision
• Suitable for existing radial feeder protection schemes

For most replacement enquiries, buyers do not need to provide detailed relay settings at the beginning. The existing part number and nameplate are normally the best starting point.

Applications

SPAA 120 C is mainly used for:

• Radial feeder protection
• Medium-voltage distribution feeders
• Short-circuit protection
• Directional earth-fault protection
• Isolated-neutral networks
• Resistance-earthed networks
• Impedance-earthed networks
• Distribution substations
• Industrial switchgear
• Existing ABB SPACOM protection panels
• Plant maintenance spares
• Shutdown replacement requirements

ABB specifically designed SPAA 120 C for selective short-circuit and earth-fault protection in radial distribution networks.

SPAA 120 C and SPAA 121 C

SPAA 120 C is a specific feeder protection relay rather than a large model family. However, SPAA 121 C is a closely related version.

ABB states that SPAA 120 C and SPAA 121 C provide the same main protection functions. The difference is the earth-fault current input:

• SPAA 120 C: 1 A and 5 A
• SPAA 121 C: 0.2 A and 1 A

SPAA 121 C was intended for applications requiring more sensitive earth-fault protection.

For an existing replacement, SPAA 120 C and SPAA 121 C should therefore not automatically be treated as interchangeable.

ABB SPAA 120 C Replacement

ABB lists SPAA 120 C as not active since 2009, so replacement is now one of the main reasons buyers still source this relay.

Typical needs include:

• Replacement for a failed SPAA 120 C
• Matching relay for existing switchgear
• Plant shutdown spare
• Maintenance stock
• Legacy ABB SPACOM spare
• Upgrade of an older feeder protection panel

For an exact spare, send:

• Complete ABB order number
• Clear nameplate photograph
• Required quantity
• Destination country
• Required delivery schedule

This helps confirm the correct input, frequency and auxiliary supply before quotation.

ABB SPAA 120 C Replacement with REX615

ABB specifically lists SPAA 120 C among the supported relay types in its current SPACOM-to-REX615 retrofit program.

ABB’s retrofit package includes:

• REX615 protection and control relay
• Retrofit connector kit
• Documentation

ABB states that the retrofit program is intended to reduce major rewiring and shorten switchgear shutdown time when supported SPACOM relays are replaced.

A REX615 retrofit may be considered when:

• The installed SPAA 120 C has failed
• Maintaining legacy spares is becoming difficult
• The feeder panel is being upgraded
• Long-term relay support is required
• Modern communication is needed

For an initial retrofit enquiry, send us the existing SPAA 120 C nameplate, quantity and destination country. Existing settings and panel details can be reviewed later if required.

Why Buy ABB SPAA 120 C from ARP IMPEX?

ARP IMPEX supports international buyers looking for ABB protection relays for existing installations and replacement needs.

We can assist with:

• ABB SPAA 120 C part-code checking
• Existing relay nameplate matching
• Legacy spare availability
• Replacement for failed relays
• Single-unit and multiple-quantity quotations
• Plant maintenance and shutdown spares
• REX615 retrofit enquiries
• ABB technical datasheets
• Export packing
• International shipping support

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

Request a Quote for ABB SPAA 120 C

For price and availability, please send:

• Complete ABB SPAA 120 C order number
• Clear relay nameplate photograph
• Required quantity
• Destination country
• Required delivery date

If the complete part number is not available, send the nameplate photograph, and we can start checking from there.

Send your ABB SPAA 120 C part code, quantity and destination country to ARP IMPEX for price, availability, replacement or REX615 retrofit quotation.

ARP IMPEX supplies ABB SPAA 120 C replacement relays and legacy ABB SPACOM feeder protection spares for international buyers.