IEEE 1000-4-5: 1995 and IEEE C62.41-1991 are the recognized standards for
top quality surge protectors. B&B Electronics’ heavy duty units meet these
specifications with three stage protection for maximum safety: a gas discharge
tube feeds to a series resistor and a TVS (Transient Voltage Suppressor) for
each supported line.
Tough metal panel mount cases protect models 232HESP, 422HESP and
485HESP. HESP4DR provides the same surge protection in a molded DIN
Rail mount case. All have #10 ground screws which must be connected to a
Model HESP4DR is a high energy surge protector designed to help
protect against dataline surges and spikes. Three-stage protection
includes gas discharge tube, series resistor and Transient Voltage
Suppressor (TVS). Five RS-422/485 signals are protected with a clamping
voltage of 6.8v.
Dimensions: 1.4 x 3.1 x 4.2 in (3.6 x 7.9 x 10.5 cm). Molded case. DIN Rail mount.