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4.6.2. Sparkover - Phase Surge Protection Device (SPD)
It is a device that limits overvoltages in the mains by diverting the current line to the ground in order to limit
the amplitude of this overvoltage to a value that is not dangerous to the equipment. It is connected in
parallel between the line and the ground and has high impedance. Once the transient overvoltage appears
in the system the impedance of the device decreases and directs the current to earth, protecting the
equipment. When this occurs the device signals a red flag, calling for replacement:
RED:
Fault
Sparkovers types:
2798844 – 275VAC SURGE PROTECTION VARISTOR
2817990 – 260VAC SURGE PROTECTION SPARKLER
2807586 – 150VAC SURGE PROTECTION VARISTOR
M 208
PHASE
NEUTRAL
2817990
260 VAC SURGE
PROTECTION SPARKLER
Ground
Never open the device: as there is a risk of electric shock. If necessary, contact Comark
customer support.
Never expose the equipment to rain, moisture, or direct sunlight in order to avoiding risk of
fire or electric shock.
PHASE
NEUTRAL
2798844
275 VAC SURGE
PROTECTION VARISTOR
Ground
Before Connecting the Machine to the AC Mains, one must ensure that the grid
Voltage meets the equipment's settings.
E-Compact MP-BB3 Series
Sparkover Changing
About AC MAINS TYPE, see Section 8 –
Attachments, USA AC Mains Types for E-
B 240
PHASE
PHASE
Ground
PHASE
PHASE
2807586
150 VAC SURGE
PROTECTION VARISTOR
Ground
86 | 108
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