ABB MT-91-ARCFPA Product Introduction
Product Description
The ABB MT-91-ARCFPA is an advanced arc flash protection relay, specifically engineered to detect and mitigate arc flash hazards in electrical distribution systems. It continuously monitors electrical enclosures and switchgear for rapid light intensity increases and current fluctuations—key indicators of an arc flash event—triggering protective actions (such as tripping circuit breakers) within milliseconds to limit damage to equipment and reduce risks to personnel. This relay is widely used in power plants, industrial facilities, data centers, and commercial buildings, where high-voltage electrical systems are present and arc flash incidents could have severe consequences. With its precise detection algorithms and fast response time, it minimizes the energy released during an arc flash, enhancing overall electrical system safety and compliance with international safety standards.
Technical Parameters
- Detection Method: Dual-sensing technology combining light detection (180 ~ 700 nm wavelength) and overcurrent detection for reliable arc flash identification.
- Response Time: ≤ 10 ms, ensuring rapid activation of protective measures.
- Operating Voltage: 24 V DC ± 20%, compatible with standard industrial control power supplies.
- Power Consumption: Typical 8 W, ensuring energy-efficient operation.
- Input Current Range: 0.5 ~ 100 A (via current transformers), adapting to various electrical system sizes.
- Number of Light Sensors Supported: Up to 8, enabling coverage of multiple zones within electrical enclosures.
- Output Relays: 4 normally open (NO) relays, rated for 250 V AC/30 V DC, 5 A, for triggering circuit breakers or alarms.
- Operating Temperature Range: -20 ~ 70 °C, suitable for harsh industrial and electrical room environments.
- Storage Temperature Range: -40 ~ 85 °C, maintaining integrity during storage and transportation.
- Relative Humidity: 5% ~ 95% (non-condensing), resistant to moisture-related issues.
- Isolation: 2 kV galvanic isolation between inputs, outputs, and power supply, enhancing system safety.
- Dimensions (L × W × H): 110 mm × 90 mm × 50 mm, compact for installation in electrical panels.
- Weight: Approximately 300 g, lightweight for convenient mounting.
- Mounting Type: DIN rail mounting, compatible with standard electrical panel setups.
- Communication Interface: RS485 port with Modbus RTU protocol, enabling integration with SCADA or safety monitoring systems.
- Certifications: CE, UL, IEC 61850, meeting international electrical safety standards.
The ABB MT-91-ARCFPA is available for global sale, covering all major industrial and commercial regions. Orders are processed promptly, with delivery guaranteed within 3 days, ensuring quick integration into your electrical safety systems to enhance protection against arc flash hazards.
There are no reviews yet.