R-MAG - Outdoor Magnetically Actuated Circuit Breaker
R-MAG industry-proven magnetic circuit breaker
The R-MAG® circuit breaker for medium voltage primary substations enables ABB to meet and exceed the industry standard for safety and reliability. Magnetically actuated, the R-MAG circuit breaker has fewer moving parts and requires less maintenance than breakers with traditional spring mechanisms. The durable R-MAG circuit breaker design and low maintenance requirement have been field-tested over 20 years in more than 50,000 installations, in 10+ different countries.
Benefits
- Reduced maintenance with magnetic actuator and easy plug-and-play actuator circuitry
- Option for Internal Arc Resistant housing tested as per IEEE C37.20.7, Type 2B
- New housing rated NEMA4 for water ingress protection is ready to withstand sleet, snow, heavy ran, storms and wind driven rain impacting the housing at rates of more than 60Gal/min from any direction
- Five-year full warranty
Features
- Designed and tested in accordance with IEEE Std. C37.04, C37.06, C37.09 and IEC 62271-100
- C2 Class rating for capacitor switching per IEEE Std. C37.04 and IEEE Std. C37.09 (available as an option)
- Arc-resistant Type 2B enclosure tested in accordance with IEEE Std. C37.20.7 – 2017 (available as an option)
- Moderate and high seismic qualification as per IEEE Std. 693-2018 available
- 15.5/27/38 kV voltage classes, up to 3,700 A and up to 40 kA interruption level
- Unlimited level of customization in control and protection elements
Reliability
- Minimized potential points of failure by having only one moving part in the magnetic actuator operating system
- Magnetic actuator is rated for 100,000 operations for the 15-27 kV R-MAGs and 50,000 operations for the 38 kV R-MAG
- ABB world-leading vacuum interrupters rated for 30,000 full load operations
- Tested for reliability in any environmental conditions from -50°C to +70°C
Easy integration
- Back-up battery footprint reduced by 90%
- Only 8 seconds charging time from 1-100%; no pre-charge period is required, regardless of extended unutilized time in the yard
- Flexible solution for any type of relay, control, and test switches
- Up to 3 CTs, rated for both metering and/or protection, per bushing
Reduced operation and maintenance
- Shorter inspection times and longer maintenance intervals up to 10 years, as there are no coils or motors to replace and there is no gas or oil
- Reduced spare parts inventory
- Plug and play design of the ED2.0 electronic control board for rapid replacement in the field