Multi-staged design, combining a unique hybrid clamping network with the Active Tracking ▐®technology
Transient protection in all modes: line to neutral, line to ground, and neutral to ground
LED status indication and form C contact for remote indication
Reduces noise to enhance reliability while protecting equipment from surges. Learn More about our latest product updates.
The ASCO Model 277 is a series-connected high frequency noise filter and surge suppressor that is ideal for improving power quality and protecting mission-critical loads up to 20 amps.