Emerson SOLAHD STV25K Series, Manual

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STV25K Series
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1.7 Nominal Voltage
The maximum continuous operating voltage (MCOV) for model STV25K10S is 150 V ac; 300 V ac for model
STV25K24S.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Confirm the surge protective device voltage rating on the module or nameplate label is not less than the operat-
ing voltage.
Failure to follow these instructions will result in death or serious injury.
1.8 Summary Alarm Contacts
Summary alarm Form C (1 N.O. and 1 N.C.) relay contacts rated 125 VAC, 5 A maximum are provided
for remote indication of protection status. Connections can be made to these terminals using #18 AWG
conductors.
1.9 Conductor Size
The conductor size to the input and output of the STV25K ranges from #14 AWG to #10 AWG.
1.10 Grounding
Input and output ground terminals must be connected for proper operation. This grounding is not only
required for safety, but also for equipment performance. Incorrect grounding can reduce or impede the
operation of the unit.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• This equipment must be effectively grounded per all applicable codes. Use an equipment-grounding conductor to
connect this equipment to the power system ground.
Failure to follow these instructions will result in death or serious injury.
1.11 Voltage Protection Ratings (VPRs)
To maintain the voltage protection ratings marked on these products, as obtained by Underwriters
Laboratories, Inc. in accordance with ANSI/UL 1449, the Standard for Safety, Surge Protective Devices (SPDs),
#12 AWG wire must be utilized to connect the STV25K to your protected load. Connections made with
conductors other that #12 AWG may result in different VPRs.
1.12 Wiring Connections
Before making connections to the unit, verify that the unit model number and nameplate voltage rating are
appropriate for connection to the intended power source. See Table 1 for voltage rating applications with
typical power source configurations.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Confirm that the Surge Protective Device voltage rating on the module or nameplate label is not less than the
operating voltage.
Failure to follow these instructions will result in death or serious injury.
DANGER
DANGER
DANGER