Description
Technical Specifications
- Product Model: HARRIS V881BA60
- Brand: Harris / Littelfuse
- Warranty: One Year
- Input Voltage: Maximum AC RMS 880 V, DC 1150 V
- Operating Temperature: -40 °C to +85 °C
- Storage Temperature: -55 °C to +125 °C
- Response Time: < 25 ns transient suppression
- Protection Class: Encased disc, chassis mount construction
- Accuracy Class: N/A (surge protection component)
- Output Frequency: 50 / 60 Hz compatible
- Rated Current Range: Maximum surge current 70 kA (8/20 μs waveform)
- Communication Interface: N/A
- Supported Protocols: N/A
- Overload Capacity: Rated energy absorption 3200 J
- Dimensions: 92 mm × 92 mm × 42 mm
Product Overview
The HARRIS V881BA60 is a heavy-duty metal oxide varistor (MOV) engineered for high-energy transient overvoltage suppression within industrial power control, DCS and power distribution assemblies. It absorbs destructive voltage spikes, lightning surges and switching transients to safeguard sensitive PLC, DCS modules, transformers and low-voltage control circuitry. The sealed encased disc design delivers stable clamping performance under repeated surge events and minimises thermal runaway risk under continuous operating voltage. Electrical and automation maintenance teams integrate this varistor into main control cabinet power entry points and auxiliary power circuits. It extends service life of costly automation hardware, reduces unplanned downtime caused by electrical disturbances and eliminates premature component failures in electrically harsh industrial sites.
Application Scenarios
- Power Plant DCS Control Cabinets: Installed at AC power input racks to suppress switching surges from generator excitation systems. It protects critical turbine control I/O modules from transient voltage damage during breaker switching operations.
- Petrochemical Refinery Motor Control Centres: Provides surge protection for medium voltage auxiliary power feeders. Robust energy handling capability defends automation hardware from lightning-induced surges at remote field process units.
- Water Treatment Plant Electrical Distribution Panels: Guards PLC and instrumentation power supplies against grid voltage fluctuations and inductive load switching transients in outdoor pumping stations.
- Heavy Industry Manufacturing Main Switchgear: Deployed on auxiliary control circuits for large drive systems. The wide operating temperature range supports installation in non-climate-controlled production facility electrical rooms.
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