The ABB SPAJ140C Combined Overcurrent and Earth-Fault Relay is a multifunctional protection device designed for industrial and utility power systems. It integrates both overcurrent and earth-fault detection in a single compact unit, ensuring reliable fault monitoring and rapid isolation.
Its robust 24×13.2×16 cm design and 3.2 kg weight make the SPAJ140C suitable for demanding environments, while configurable output relays and binary inputs enhance adaptability in complex control architectures.
Stage blocking, manual reset, dynamic setting group changes
Communication Service
Ethernet router
HS Code
8537101190
Origin
Sweden
Condition
Brand New
MOQ
1
Lifecycle Status
Active
Functional Highlights
Dual protection: Combines overcurrent and earth-fault detection in one unit.
Fast response: High-set stages isolate faults within ~40 ms.
Flexible coordination: Six selectable curve options for precise system alignment.
Configurable outputs: Supports alarms, blocking signals, and auto-reclosing initiation.
Remote adaptability: Binary input enables stage blocking, manual reset, and dynamic group changes.
Applications and Compatibility
The ABB SPAJ140C is widely used in feeder and motor protection within industrial and utility networks. Its rapid response, customizable curves, and advanced control features make it ideal for:
Power distribution systems
Motor protection in manufacturing plants
Utility substations
Continuous process industries requiring high reliability
