ABB SPAG 320 C Generator Protection Relay
ABB SPAG 320 C Generator Protection Relay Supplier and Exporter in India
ABB SPAG 320 C Replacement and Legacy Spare Availability
Replacement: ABB SPAG 320 C is discontinued. For an existing installation, the replacement should be checked against the complete ABB order code and relay nameplate to match the correct legacy unit.
ARP IMPEX supplies and exports ABB SPAG 320 C generator protection relays for replacement, maintenance and existing generator protection panels.
SPAG 320 C belongs to ABB’s older SPACOM generator protection range. It was mainly used for small and medium-sized generators, particularly standby generating sets with automatic starting and changeover systems. ABB also approved the relay for marine and offshore applications.
The relay combines overcurrent, short-circuit and voltage protection functions required in generator installations. It is still found in older generator panels where the original SPACOM protection system remains in service.
Since SPAG 320 C is no longer an active ABB product, most requirements today are for a failed relay replacement, maintenance stock or an additional spare before a shutdown.
If you are looking for an ABB SPAG 320 C replacement relay, send the complete part number or a clear photograph of the existing relay nameplate. ARP IMPEX can check the correct version against your quantity and destination country.
Technical Specifications
- Brand: ABB
- Series: SPACOM / SPAG
- Model: SPAG 320 C
- Product type: Generator protection relay
- Product status: Legacy / discontinued
- Main application: Small and medium generator protection
- Current input: 1 A or 5 A
- Voltage input: 100 V or 110 V
- Rated frequency: 50 Hz or 60 Hz, depending on version
- Overcurrent protection: Available
- Short-circuit protection: Available
- Overvoltage protection: Available
- Undervoltage protection: Available
- Three-phase undervoltage protection: Two-stage
- Communication: SPA serial communication
- Auxiliary supply: Different AC/DC versions available
- Self-supervision: Built-in
For an exact spare, the complete ABB order code should be checked because frequency and auxiliary supply can vary between versions.
Features
- Three-phase overcurrent protection
- Short-circuit protection
- Overvoltage protection
- Undervoltage protection
- Two-stage three-phase undervoltage protection
- Protection for standby generator installations
- Local indication through front-panel displays
- SPA serial communication
- Connection to higher-level monitoring systems
- Internal hardware and software self-supervision
- 1 A and 5 A current input options
- Suitable for land-based, marine and offshore generator installations
These are the main functions useful for identifying the relay. Detailed protection settings and operating curves are better checked from the ABB manual when required.
Applications
SPAG 320 C is commonly found in:
- Small generator protection
- Medium generator protection
- Standby generator sets
- Automatic generator starting systems
- Automatic changeover generator systems
- Diesel generator protection panels
- Captive power installations
- Industrial standby power systems
- Marine generator protection
- Shipboard electrical systems
- Offshore installations
- Existing ABB SPACOM generator panels
- Plant maintenance stock
- Shutdown spare requirements
ABB particularly identifies land-based standby generators with automatic starting and switch-over arrangements, along with marine and offshore applications, for SPAG 320 C.
ABB SPAG 320 C Model
The SPAG 320 range was supplied as SPAG 320 B and SPAG 320 C.
- SPAG 320 B: Version without serial communication
- SPAG 320 C: Version with serial communication interface
The SPAG 320 C can communicate with higher-level systems over ABB’s SPA bus through suitable SPA-ZC connection modules.
This page is specifically for SPAG 320 C. If you are replacing an installed relay, SPAG 320 B and SPAG 320 C should not automatically be treated as interchangeable. Please check the exact model and order number.
ABB SPAG 320 C Replacement
SPAG 320 C has been an inactive ABB product since 2007.
For plants where the relay is still installed, the requirement may be:
- Replacement for a failed SPAG 320 C
- Matching legacy spare
- Standby spare for an existing generator panel
- Plant shutdown stock
- Maintenance inventory
- Marine generator spare
- Offshore equipment spare
For an exact replacement, please send:
- Complete ABB order code
- Clear relay nameplate photograph
- Required quantity
- Destination country
- Required delivery schedule
ARP IMPEX can check the requirement against the existing relay details before quoting.
We would not recommend selecting another relay only from the SPAG 320 C model name when the requirement is for an existing panel. The correct legacy unit should first be identified from the installed relay.
Why Buy ABB SPAG 320 C from ARP IMPEX?
ARP IMPEX supports international buyers looking for ABB legacy relays for existing installations and maintenance needs.
We can assist with:
- ABB SPAG 320 C part-code checking
- Relay nameplate matching
- Legacy spare availability
- Replacement for failed relays
- Single-unit quotations
- Multiple-quantity requirements
- Plant maintenance and shutdown spares
- Marine and offshore spare requirements
- ABB technical datasheets
- Export packing
- International shipping support
We handle RFQs from power plants, industrial companies, EPC contractors, marine operators, maintenance companies and electrical traders.
Request a Quote for ABB SPAG 320 C
For price and availability, please send:
- Complete ABB SPAG 320 C order number
- Clear relay nameplate photograph
- Quantity
- Destination country
- Required delivery date
If the complete order number is not available, send the nameplate photograph, and we can start checking from there.
Send your ABB SPAG 320 C part code, quantity and destination country to ARP IMPEX for price, availability and export quotation.
ARP IMPEX supplies ABB SPAG 320 C replacement relays and legacy ABB SPACOM generator protection spares for international buyers.



