EMERSON STV25K Series Surge Protective Devices User Manual
- October 27, 2023
- Emerson
Table of Contents
User Manual
STV25K Series
STV25K Series Surge Protective Devices
Safety Information
Important Information
Read these instructions carefully and look at the equipment to become familiar
with the device before trying to install, operate, service or maintain it. The
following special messages may appear throughout this bulletin or on the
equipment to warn of potential hazards or to call attention to information
that clarifies or simplifies a procedure.
The addition of either symbol to a “Danger” or “Warning” safety label
indicates that an electrical hazard exists which will result in personal
injury if the instructions are not followed.
This is the safety alert symbol. It is used to alert you to potential personal
injury hazards. Obey all safety messages that follow this symbol to avoid
possible injury or death.
DANGER indicates a hazardous situation which, if not avoided, will
result in death or serious injury.
WARNING
WARNING indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION
CAUTION indicates a hazardous situation which, if not avoided, could
result in minor or moderate injury.
NOTICE
NOTICE is used to address practices not related to physical injury. The
safety alert symbol shall not be used with this signal word.
Please Note
Electrical equipment should be installed, operated, serviced, and maintained
only by qualified personnel. No responsibility is assumed by Appleton Grp LLC
d/b/a Appleton Group for any consequences arising out of the use of this
material.
A qualified person is one who has skills and knowledge related to the
construction, installation, and operation of electrical equipment and has
received safety training to recognize and avoid the hazards involved.
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.
• Do not supply more than 24VDC / 24VAC and no more than a current of 2A to
contacts.
• 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 install in areas with excessive dust, corrosive vapors, flammable
materials, or explosive atmospheres.
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.
NOTICE
LOSS OF SURGE SUPPRESSION
• Make certain that Surge Protective Device is disconnected from the circuit
it is protecting before conducting high potential insulation testing.
Failure to follow these instructions can result in equipment damage..
Installation & Operation
The SolaHD STV25K Series Surge Protective Device is a high-quality transient
diversion system designed to protect sensitive equipment from damaging
transient voltage surges resulting from load switching, lightning strikes,
and other sources.
The installer should perform the following steps to ensure a quality
installation. Please read all instructions before starting the installation of
this product. These instructions do not replace national or local electrical
codes. Check applicable codes to ensure compliance.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Only qualified personnel should install or service this system.
• Electrical safety precautions must be followed when installing or servicing
this equipment.
• To prevent risk of electrical shock, turn off and lock out all power sources
to the unit before making electrical connections or servicing.
Failure to follow these instructions will result in death or serious
injury.
1.1 Environment
The unit is designed for indoor operation in an ambient temperature range of
-40°C to +60°C (-40°F to +140°F), with a relative humidity of 0% to 95% non-
condensing.
NOTICE
LOSS OF SURGE SUPPRESSION
• Do not install in areas with excessive dust, corrosive vapors, flammable
materials, or explosive atmospheres.
Failure to follow these instructions can result in equipment damage.
1.2 Mechanical Dimensions
1.3 DIN Rail Mounting
- Tilt unit as illustrated.
- Put unit onto the DIN rail.
- Push unit downward until it stops.
- Push at the lower front edge to lock.
- Gently shake the unit to ensure that it is secure.
NOTE: Press the button located at the top (rear) of the enclosure to unlock and remove from the DIN rail.
1.4 Supplemental Enclosures
The STV25K must be installed inside an enclosure and located to prevent
accidental contact with terminals during maintenance and service.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• This equipment must be installed inside an enclosure and located so, as to
prevent accidental contact with terminals during maintenance or servicing.
Failure to follow these instructions will result in death or serious
injury.
1.5 Maximum Current Capability
The total current draw in which the STV25K may continuously handle is 20 A.
NOTICE
LOSS OF SURGE SUPPRESSION
• Overloading the unit can cause permanent damage.
Failure to follow these instructions can result in equipment damage.
1.6 Recommended Fuse
Bussman type SC-25 Class G, rated 250 V ac minimum; 25 A maximum or
equivalent.
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 operating 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.
1.13 Applying Power
Apply power to the unit and ensure status indications are normal. Under normal
conditions, the green LED is illuminated.
If the green LED is not illuminated, check all connections and ensure reliable
and proper voltages are supplied to the unit.
For further assistance, please contact SolaHD Technical Support at
1-800-377-4384. You can also e-mail us at
[email protected].
Table 1: Voltage Ratings & Power Source Configurations
Model: STV25K10S
Nominal Voltage (50/60 Hz): 120 V ac System Configuration: Single-phase, 2W + G
|
Model: STV25K24S
Nominal Voltage (50/60 Hz): 240 V ac System Configuration: Single-phase, 2W + G
|
Specifications
Table 2: Technical Specifications
Parameters
| Model
STV25K10S| STV25K24S
Nominal Input Voltage| 120 V ac| 240 V ac
System Configuration| Single-phase, 2W + G| Single-phase, 2W + G
Maximum Continuous Operating Voltage (MCOV)| 150 V ac| 300 V ac
Operating Frequency Range| 47–63 Hz
Input Current Rating| 20 A
Short Circuit Current Rating (SCCR)| 5 kAIC when protected by a listed
Class G fuse rated at 25 A, 480 V ac minimum
Surge Current Rating| 25 kA per phase
Nominal Discharge Current (I N )| 3 kA
Response Time| <0.5 ns
All Modes of Protection| L-N, L-G, N-G, L-L, L-G
EMI/RFI Noise Rejection| Normal mode: 50 dB minimum
Common mode: 40 dB minimum
Operating Temperature| -40°C to +60°C (-40°F to +140°F)
Operating Humidity| 0 to 95% non-condensing
Dimensions, D x W x H| 4.35 in. x 2.56 in. x 4.84 in. (110.5 mm x 65.0
mm x 122.9 mm)
Weight| 0.83 lb. (0.38 kg)
Enclosure| Metal, IP20
Mounting Type| DIN rail mounting
NOTE: Optional chassis mounting bracket is available, P/N SDN-PMBRK2
Connections| Screw terminals, #10-14 AWG (#12 AWG recommended)
Torque Specification| 4.4 lbs-in
Status Indication| Green LED, Form C relay contacts
Standard Certification| UL 1449 Type 2CA Device
Warranty| 10 year limited warranty
UL 1449 Voltage Protection Ratings (VPRs)
Line to Neutral| 500 V| N/A
Line to Line| N/A| 900 V
Line to Ground| 500 V| 900 V
Neutral to Ground| 500 V| N/A
Technical Support
Website: www.solahd.com
Technical Support E-Mail:
[email protected]
Toll-Free: 1-800-377-4384
Warranty
Please refer to the “Terms & Conditions of Sale” document.
While every precaution has been taken to ensure accuracy and completeness in
this manual, Appleton Grp LLC d/b/a Appleton Group assumes no responsibility,
and disclaims all liability for damages resulting from use of this information
or for any errors or omissions.
The Emerson logo is a trademark and service mark of Emerson Electric Co.
Appleton Grp LLC d/b/a Appleton Group. SolaHD is a registered trademark of
Appleton Grp LLC.
All other marks are the property of their respective owners. © 2020 Emerson
Electric Co. All rights reserved.
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