Operating Frequency: 60 Hz (50 Hz available upon request)
Insulation: 130 deg c Class B (250 VA - 750 VA)
155 deg c Class F (1000 VA - 2000 VA)
Sound Level:Less than 40 dB
Polarity: Additive

For installation in locations where exposureto the atmosphere could damage the core and coils. Elements are completely enclosed in type 3R and 12 wnclosures to ensure safe and trouble-free service in damp, corrosive and suty locations. Suitable for use in refineries, mines, pulp and paper plants, mills and marine environments.
Suitable for Class 1, Division 2 locations