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Introduction
The SolaHD STC642036 Series surge protective device, (SPD) is a two-pair (four or five wire) module
implementing three-stage hybrid technology. This SPD addresses overvoltage transients with gas tubes and
silicon avalanche components. In addition, sneak and fault currents are mitigated with self resettable fuses
(PTCs). The PTCs increase resistance several orders of magnitude when over-currents exceed certain levels. A
normal state resumes when over-currents are removed. The ability to self-restore in this manner significantly
increases suppressor performance and survivability.
The STC642036 is gold-plated, double sided and is designed to mate with the gold-plated female terminal
connector base. When snapped together, the data circuits "pass thru" the protector in a serial fashion from
the four "Field Side" terminals to the four "Equipment Side" terminals. Terminals 1 or 10 of the base must be
attached to Building- Approved Ground.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E,
NOM-029-STPS or CSA Z462.
• This equipment must only be installed and serviced by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors and covers before turning on power to this equipment.
• This equipment must be effectively grounded per all applicable codes. Use an equipment-grounding conductor to
connect this equipment to the power system ground.
• Confirm that the Surge Protective Device voltage rating on the module or nameplate label is not less than the
operating voltage.
• This equipment must be installed inside an enclosure and located so, as to prevent accidental contact with
terminals during maintenance or servicing.
• Do not place this product in service on any line capable of supplying more than 150 mA continuously.
Failure to follow these instructions will result in death or serious injury.
WARNING: This product can expose you to chemicals including DINP, which is known to the State of California
to cause cancer, and DIDP which is known to the State of California to cause birth defects or other reproductive
harm. For more information go to: www.P65Warnings.ca.gov.
DANGER
STC642 Series
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