ABB SPAJ110C Digital Motor Protection Relay
Product OverviewThe ABB SPAJ110C is a compact, high-performance digital motor protection relay designed to safeguard industrial motors from electrical and thermal faults, ensuring reliable operation and minimizing downtime. As part of ABB’s advanced SPAJ series, this relay combines comprehensive protection functions with user-friendly configuration, making it ideal for applications in manufacturing, energy, water treatment, and transportation. The SPAJ110C supports real-time monitoring of motor parameters such as current, voltage, and temperature, providing instantaneous tripping and alarm signals to prevent damage. Its modular design (90 mm × 120 mm × 110 mm) and DIN-rail mounting facilitate easy installation, while compliance with IEC 60255 and IEEE standards ensures global compatibility.

SPAJ110C
Technical Specifications
Parameter Name |
Parameter Value |
Product Model |
ABB SPAJ110C (3BHE022510R0101) |
Manufacturer |
ABB |
Product Type |
Digital Motor Protection Relay |
Rated Voltage |
50–690 V AC (phase-to-phase) |
Current Range |
0.5–630 A (adjustable via CTs) |
Protection Functions |
Overload, Short Circuit, Phase Loss |
Communication Protocols |
Modbus RTU, Profibus DP |
Trip Delay |
0.1–10 seconds (adjustable) |
Operating Temperature |
-20°C to +60°C |
Dimensions |
90 mm × 120 mm × 110 mm |
Weight |
0.8 kg |
Mounting Type |
DIN-rail or panel-mounted |
Display |
LCD for real-time parameter visualization |
Key Features and Advantages
The SPAJ110C delivers superior motor protection through its advanced architecture:
- Multi-function Protection: Combines overload, short-circuit, and phase-loss protection in a single device, reducing hardware complexity.
- Adaptive Thermal Modeling: Calculates motor temperature based on load history, providing precise thermal overload protection.
- Digital Communication: Supports Modbus RTU and Profibus DP for seamless integration with PLCs and SCADA systems.
- Easy Configuration: Intuitive LCD interface and ABB’s Relion Manager software simplify parameter setup and diagnostics.
- Compact Design: Space-efficient DIN-rail mounting suits small control panels and retrofitting projects.

SPAJ110C
Application Areas
The SPAJ110C is widely used in industries requiring reliable motor protection:
- Manufacturing: Protects pumps, fans, and conveyor systems in automotive and food processing plants.
- Energy: Ensures safe operation of motors in power generation and renewable energy installations.
- Water Treatment: Manages motor-driven pumps and agitators in wastewater and drinking water systems.
- Transportation: Supports HVAC and ventilation systems in railways and airports.
Related Products
- ABB SPAJ140C: Enhanced version with advanced metering and harmonic monitoring.
- ABB SPAJ120C: Basic model for cost-sensitive applications.
- ABB SA811F: Power supply module for AC 800F DCS systems.
- ABB 800xA DCS: Comprehensive automation platform for enterprise-wide motor management.

SPAJ110C
Installation and Maintenance
Installation Preparation:
- Mount the SPAJ110C securely on a DIN rail in a dry, well-ventilated area.
- Connect current transformers (CTs) and power supply within specified voltage limits.
- Calibrate CT ratios and configure trip settings using ABB’s configuration tool.
Maintenance Recommendations:
- Inspect connections biannually for corrosion or looseness.
- Update firmware annually to access new features.
- Perform functional tests quarterly to validate protection responses.
- Clean dust from vents using compressed air to maintain thermal efficiency.

SPAJ110C
Product Warranty
ABB provides a 24-month warranty on the SPAJ110C, covering defects in materials and workmanship. Global technical support includes 24/7 assistance, remote diagnostics, and on-site service. Users gain access to detailed documentation, training resources, and compatibility with ABB’s automation ecosystem, ensuring long-term system reliability.
Maximizing ROI
Pair the SPAJ110C with ABB’s Ability™ Condition Monitoring for predictive analytics, reducing maintenance costs by up to 30%. This integration aligns with smart manufacturing initiatives, enabling proactive motor health management and energy optimization.