ETA-S20
AC Power Distribution Unit & Surge Suppressor
ETA-S20
AC Power Distribution Unit &
Surge Suppressor
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800-321-6699 • Fax: 800-996-3821
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ETAsys.com
Specifications are subject to change without notice.
ETA-S20
AC Power Distribution Unit & Surge Suppressor
SAFETY INSTRUCTIONS
The lightning flash with arrowhead symbol within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage “ within the
product’s enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the product.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this device near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other device (including amplifiers)
that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the
other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your
safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they
exit from the device.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the device. When a cart is used,
use caution when moving the cart/device combination to avoid injury from tip-over.
13. Unplug this device during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the device has been damaged in any way, such as
power-supply cord or plug is damaged, liquid has been spilled, or objects have fallen into the device, the device has been exposed
to rain or moisture, does not operate normally, or has been dropped.
15. WARNING: To reduce the risk of fire or electric shock, this device should not be exposed to rain or moisture and objects filled with
liquids, such as a vase, should not be placed on this device.
16. To completely disconnect this equipment from the mains, disconnect the power supply cord plug from the receptacle.
17. The mains plug of the power supply cord shall remain readily operable.
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800-321-6699 • Fax: 800-996-3821
– 3 –
ETAsys.com
Specifications are subject to change without notice.
ETA-S20
AC Power Distribution Unit & Surge Suppressor
WARNING – WHEN THE DEVICE IS IN USE
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To prevent electric shock, do not remove the product cover as there are high voltage components inside. Refer all servicing to
ETA Systems.
Should any of the following irregularities occur during use, immediately switch off the power, disconnect the power cord from the
AC outlet and contact ETA Systems. Do not to attempt to continue operation with the product as this may cause fire or electric shock:
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Smoke or strange smell coming from the unit.
If the product falls or the case is damaged.
If water or any metallic objects falls into the product.
If the power supply cord is damaged in any way.
If the unit is malfunctioning.
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Do not insert or drop metallic objects or flammable materials into the ventilation holes of the product's cover, as this may result in
electric shock or fire.
Do not place any containers with liquid or metallic objects on the top of the product. If any liquid spills into the unit, fire or electric
shock may result.
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Never operate this product or touch the power supply cord during an electrical storm, electric shock may result.
Never exceed the power rating on the product when connecting equipment. Fire and/or property damage may result.
Operate the product only with the voltage specified on the unit. Fire and/or electric shock may result if a higher voltage is used.
Do not modify, kink, or cut the power cord. Do not place the power cord in close proximity to heaters and do not place heavy objects
on the power cord, including the product itself, doing so may result in fire or electrical shock.
Replace the protective cover over the speaker terminals after installation. Do not touch the 70V speaker terminals as electric shock
may result.
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Ensure that the safety ground terminal is connected to a proper ground. Never connect the ground to a gas pipe as a catastrophic
disaster may result.
Be sure the installation of the product is stable, avoid slanted surfaces as the product may fall and cause
injury or property damage.
CAUTION – WHEN INSTALLING THE PRODUCT
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Plugging in or unplugging the power cord with wet hands may result in electric shock.
Never move the unit with the power cord plugged into the wall, as damage to the power cord may result.
When unplugging the cord from the wall, grasp the plug, NOT the cord.
Never install this product in humid or dusty locations, nor in direct sunlight, near sources of heat, or in areas where sooty smoke or
steam are present. Fire and electric shock may result.
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Keep all sides of the unit at least 31⁄2" away from objects that may obstruct air flow to prevent the unit's internal temperature rise.
CAUTION – WHEN THE DEVICE IS IN USE
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When powering the product up for the first time, ensure that the level control is turned down. Unexpected high sound pressure
levels may be present at the speakers and result in hearing loss.
Never place heavy objects on the product, causing it to fall and/or break, resulting in personal injury and property damage. In
addition, the product itself may fall and cause injury and property damage.
Never operate the product for extended periods with the sound in a distorted condition. This is an indication of a malfunction, which
may result in excessive heat being generated and causing a fire.
Contact ETA Systems for instructions on cleaning the inside of the unit. Large accumulations of dust inside the unit may result in heat
buildup and fire.
Ensure that the power supply plug is securely plugged into the wall outlet. Never allow dust to accumulate on the power plug or
inside the wall outlet.
When cleaning the unit or the unit is not to be operated for an extended period, unplug the power cord from the wall.
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800-321-6699 • Fax: 800-996-3821
– 4 –
ETAsys.com
Specifications are subject to change without notice.
ETA-S20
AC Power Distribution Unit & Surge Suppressor
INTRODUCTION
Thank you for purchasing the ETA Systems ETA-S20 AC Power Distribution & Surge Suppressor Unit. The ETA-S20 has been designed
to meet most installation requirements for AC power distribution and equipment power protection.
The ETA-S20 features noise filtering for unwanted Radio Frequency Interference (RFI) that is commonly introduced into AC lines by
nearby radio transmitters or wireless products. The benefit of these filters can be seen on video products or audibly by reducing static
pops and external signal interference in sound reinforcement systems.
Unstable AC Mains voltage is one of the main reasons for equipment failure. The amount of energy that can be injected into the power
system can be immense with voltages reaching 6kV or current peaks of 3000A. These spikes are very fast and usually only last for a
very short period of time. The ETA-S20’s circuitry is very fast and can suppress unwanted energy within a nanosecond response and
sustain the suppression up to 2 milliseconds, thus ensuring virtually trouble-free protection. If the suppression circuitry is damaged, the
AC Protect LED will turn Off to indicate a fault has occurred.
The ETA-S20 offers power management control, noise filtering, and protection against abnormal voltages, spikes, and surges.
KEY FEATURES
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9 Total Outlets
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7 Rear Panel Switched Outlets
1 Rear Panel Unswitched Outlet
1 Front Panel Unswitched Convenience Outlet
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12 gauge 9' (2.74m) Cord
RFI Noise Filtering to Reduce Radio Frequency Interference
Circuit Breaker Protection 20A
Voltage Protection Rating
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Clamping Voltage L-N: 400, L-G: 500, N-G: 400 / 3KA, 8/20µs
Max. Spike Clamping Voltage 6KV, 1.2/50µs
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AC Protect Active Indicator
APPLICATIONS
The ETA-S20 was designed to be flexible with features that allow it to be used in a variety of applications. The ETA-S20 can be used
solely for protection against voltage surges or for AC distribution. If fuzzy video or frequent static pops occur, AC power conditioning
may eliminate or reduce those inconveniences. The following are just a few examples of applications where the ETA-S20 can be used:
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Restaurants
Houses of Worship
Schools
Home Theaters
Office Buildings
Sports Bars
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800-321-6699 • Fax: 800-996-3821
– 5 –
ETAsys.com
Specifications are subject to change without notice.
ETA-S20
AC Power Distribution Unit & Surge Suppressor
FRONT PANEL FEATURES
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1. Unswitched AC Outlet
The 120VAC 20A NEMA 5-20R outlet is always live when the ETA-S20 power cord is plugged into an AC Mains power source and
voltage is present. Note: The AC Mains power switch does not affect the Unswitched AC Outlet. The Unswitched Outlet is protected
by the surge protection circuitry.
2. AC Mains Breaker
The 120VAC 20A 2500W rated breaker will open if the combined draw of all AC outlets exceeds 20A. Note: The breaker is designed to
exceed its rating for a short period of time. If the breaker is tripped, you must first remove the load from the ETA-S20 and then push to
reset.
3. Power Switch
To turn the ETA-S20 On or Off, press the switch to the ON or OFF position. This switch powers the “switched” outlets. The switch
will illuminate Red when it is in the ON position.
4. Power AC Present LED
Will illuminate Red when the AC Mains Power Switch is in the ON position.
5. AC Protect Active LED
Although the Clamping Suppression circuit virtually assures protection from most transient voltage spikes and surges, nature has
a way of occasionally creating electrical forces that are beyond the capabilities of any device to absorb without some degree of
damage. In the rare instance that this occurs and the circuit has been damaged, the Green “AC Protect Active” LED indicator will turn
Off, indicating that the AC Protect Circuitry is no longer protecting equipment connected to the Switched outlets. The unit will still
operate as an AC distribution unit but the surge suppressor protection will not function until the unit is repaired. Note: Be advised that
activation of this fault condition and the associated repair is not covered under warranty. If the AC Protect is disengaged, it is important
to have all equipment that was connected to that AC Mains Line be inspected for proper operation.
REAR PANEL FEATURES
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1. AC Mains Input
Connect the 12 gauge 9' (2.74m) power cord to a 20A 120VAC outlet to provide power to the ETA-S20.
2. AC Power Outlets Switched
Seven 120VAC 20A NEMA 5-20R outlets are “Live” when the front panel power switch is activated.
3. Unswitched AC Outlet
The 120VAC 20A NEMA 5-20R outlet is always live when the ETA-S20 power cord is plugged into an AC mains power source and
voltage is present. Note: The AC mains power switch does not affect the Unswitched AC Outlet. The Unswitched Outlet is protected
by the surge protection circuitry.
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800-321-6699 • Fax: 800-996-3821
– 6 –
ETAsys.com
Specifications are subject to change without notice.
ETA-S20
AC Power Distribution Unit & Surge Suppressor
INSTALLATION
Before installing, we strongly suggest you read the entire manual to ensure you benefit from all the features of the ETA-S20. The
ETA-S20 can be placed on a shelf or rack mounted in a standard 19" width rack. When rack mounted, placement within the rack is
flexible however the ETA-S20 should be within 6' of a dedicated 20A AC outlet. When rack mounting, use Rack Rail type screws which
are 10⁄32" x 1". Always make sure the 20A outlet is properly inspected by a certified electrician prior to connecting the ETA-S20. Make sure
to inspect the equipment that is to be plugged into the ETA-S20 to ensure it does not exceed 20A total amperage draw.
SPECIFICATIONS
Type
AC Power Distribution & Surge Suppressor
Front Panel
Outlets
20A NEMA 5-20R, 1 Unswitched
Activation Switch
Circuit Breaker
Indicators
Rocker, Illuminates Red when in the ON position
20A Resettable
AC Power ON Red, AC Protect Active ON Green
Rear Panel
AC Outlets
NEMA 5-20R, 8 Outlets total: 7 Switched, 1 Unswitched
9' (2.74m), 12 gauge, AC Plug NEMA 5-20P
AC Mains Power Cord
Technical Data
Current Rating
Limited to 16A 2000W Continuous
20A AC Mains Breaker
102VAC – 132VAC
Current Protection
Operating Voltage
MOV - New Generation
Clamping Voltage
Qty. 3 Hot to Neutral, Hot to Ground, Neutral to Ground
L-N: 400, L-G: 500, N-G: 400 / 3KA, 8/20µs
6KV, 1.2/50µs
Max. Spike Clamping Voltage
Max. Spike Clamping Resp. Time
Maximum Surge Current
Energy Rating
<1 nanosecond
45000A, 8/20µs
900 Joules, 8/20µs
Noise Attenuation EMI/FRI
Temperature Range
Humidity Range
40dB @ 10kHz - 100MHz
5° – 35°C
5% to 95% R.H.
Mechanical
Chassis Finish
Mounting
Black
Rack Mount, 1 RU
1.75" (1RU, 44.5mm)
19" (482.6mm)
3.75" (95.5mm)
5.5 lbs (2.49kg)
800 milliwatts
UL and cUL Listed
Height
Width
Depth
Weight
Power Consumption
Agency Listings
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800-321-6699 • Fax: 800-996-3821
– 7 –
ETAsys.com
Specifications are subject to change without notice.
ETA-S20
AC Power Distribution Unit & Surge Suppressor
LIMITED WARRANTY
All products manufactured by ETA Systems are warranted to the original dealer/installer, industrial or commercial purchaser to be
free from defects in material and workmanship and to be in compliance with our published specifications, if any. This warranty
shall extend from the date of purchase for a period of one year. Additionally, fuses and lamps carry no warranty. ETA Systems will
solely at its discretion, replace at no charge or repair free of charge defective parts or products when the product has been applied
and used in accordance with our published operation and installation instructions. We will not be responsible for defects caused by
improper storage, misuse (including failure to provide reasonable and necessary maintenance), accident, abnormal atmospheres, water
immersion, lightning discharge, or malfunctions when products have been modified or operated in excess of rated power, altered,
serviced or installed in other than a workmanlike manner. The original sales invoice should be retained as evidence of purchase under
the terms of this warranty. All warranty returns must comply with our returns policy set forth below. When products returned to ETA
Systems do not qualify for repair or replacement under our warranty, repairs may be performed at prevailing costs for material and labor
unless there is included with the returned product(s) a written request for an estimate of repair costs before any non-warranty work is
performed. In the event of replacement or upon completion of repairs, return shipment will be made with the transportation charges
collect.
EXCEPT TO THE EXTENT THAT APPLICABLE LAW PREVENTS THE LIMITATION OF CONSEQUENTIAL DAMAGES FOR PERSONAL
INJURY, ETA SYSTEMS SHALL NOT BE LIABLE IN TORT OR CONTRACT FOR ANY DIRECT, CONSEQUENTIAL OR INCIDENTAL
LOSS OR DAMAGE ARISING OUT OF THE INSTALLATION, USE OR INABILITY TO USE THE PRODUCTS. THE ABOVE WARRANTY IS
IN LIEU OF ALL OTHER WARRANTIES INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE.
ETA Systems does not assume, nor does it authorize any other person to assume or extend on its behalf, any other warranty,
obligation, or liability. This warranty gives you specific legal rights and you may have other rights which vary from state to state.
SERVICE
Should your ETA-S20 require service, please contact the ETA Systems warranty department at
1-877-689-8055, ext. 277 to obtain an RA number.
ETA Systems Tech Support can be reached at 1-800-321-6699.
©2011 ETA Systems. All rights reserved. All other trademarks are the property of their respective owners. ETA004046 RevA 4/11
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800-321-6699 • Fax: 800-996-3821
– 8 –
ETAsys.com
Specifications are subject to change without notice.
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