Asco Series 300 User manual

Surge Protective Devices Installation & Operation Manual
Model 350
NEMA 12
(Steel)
NEMA 1
(Non-Metallic)

© 2019 ASCO Power Technologies
All Rights Reserved
Model 350 Surge Protective Device (SPD)
Table of Contents
IO-70105
2
Precautions
Introduction
Installation
Environment
Mounting
Wire Sizing/Routing
Conduit Connection
Wiring Connections
Troubleshooting
Applying Power
NEMA 12 Unit
Circuit Breaker and Wire Size
Dimensions (in. / mm.) and Weight (lb. / kg.)
NEMA 1 Unit
Circuit Breaker and Wire Size
Dimensions (in. / mm.) and Weight (lb. / kg.)
Parallel Wiring Diagram
4
5
6
6
6
6
6
7
7
7
9
9
9
10
10
10
11

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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 thisbulletin 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 inpersonal
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 messagesthat follow this
symbol to avoid possible injury or death.
DANGER
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 moderateinjury.
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 ASCO Power Technologies
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 andhas received
safety training to recognize and avoid the hazards involved.

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ASCO 350 Surge Protective Device (SPD)
Precautions
Precautions
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 qualied electri-
cal personnel.
• Turn o󰀨 all power supplying this equipment before working on or inside
equipment.
• Always use a properly rated voltage sensing device to conrm power is o󰀨.
• Replace all devices, doors and covers before turning on power to this
equipment.
• This equipment must be e󰀨ectively 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.
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 BRANCH CIRCUIT POWER / LOSS OF SURGE
SUPPRESSION
• Perform periodic inspection of the surge protective device status
indicator lights as part of the preventative maintenance schedule.
• Promptly replace the surge protective device when an alarm state
exists.
• Use dry contacts to signal an alarm state to the central supervisory
system for unmanned, inaccessible, or critical installations.
• Use multiple surge protective devices to achieve redundancy for critical
applications.
Failure to follow these instructions can result in equipment damage.
At end-of-life conditions, Surge Protective Devices (SPDs) can lose their
ability to suppress power system transient voltage spikes and attempt to
draw excessive current from the line. This SPD is equipped with overcurrent
and overtemperature components that will automatically disconnect the
surge suppression elements from the mains should the surge suppression
elements reach end of life. Tripping of the branch circuit breaker or fuse
feeding the SPD can occur. Mitigate the tripping of the branch circuit breaker
or fuse feeding the SPD by coordinating the surge suppression elements
with the branch circuits.
DANGER

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ASCO 350 Surge Protective Device (SPD)
Introduction
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Do not energize the surge protective device until the electrical system is
completely installed, inspected and tested.
• Ensure all conductors are connected and functional.
• Verify the voltage rating of the device and system prior to energizing.
• Perform high-potential insulation testing, or any other tests where surge
protective device components will be subjected to voltages higher than
their rated turn-on voltage, with the neutral and surge protective device
disconnected from the power source
Failure to follow these instructions will result in death or serious injury.
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 qualied
electrical personnel.
• Turn o󰀨 all power supplying this equipment before working on or inside
equipment.
• Always use a properly rated voltage sensing device to conrm power is
o󰀨.
• Replace all devices, doors and covers before turning on power to this
equipment.
• This equipment must be e󰀨ectively 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.
The ASCO Model 350 surge protective device is a surge current diversion
system designed for use with equipment that is sensitive to damaging
transient voltage surges.
DANGER
DANGER
Introduction
Note: For access to self-service
tools and chat support visit
se.com/us/en/work/support or
call 1-888-778-2733 for technical
assistance

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ASCO 350 Surge Protective Device (SPD)
Installation
Installation
Environment
Mounting
Wire Sizing/Routing
Conduit Connection
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 qualied electri-
cal personnel.
• Turn o󰀨 all power supplying this equipment before working on or inside
equipment.
• Always use a properly rated voltage sensing device to conrm power is o󰀨.
• Replace all devices, doors and covers before turning on power to this
equipment. All wiring must comply with the National Electrical Code
(NEC) and applicable local codes.
• This equipment must be e󰀨ectively grounded per all applicable codes.
Use an equipment-grounding conductor to connect this equipment to the
power system ground.
• For proper operation, neutral and ground must be reliably connected.
Improper grounding will reduce or impede operation, and may result in
damage to the SPD.
• Conrm 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.
Read all instructions before starting the installation of this product. These
instructions do not replace national or local electrical code.
The unit is designed for operation indoors in ambient temperatures of 0ºC
(+32ºF) to +50ºC (+122ºF) with a relative humidity of 0% to 95% (non-con-
densing). The unit is provided in an industrial enclosure. Do not install in ar-
eas with excessive dust, corrosive vapors, ammable materials or explosive
atmospheres.
Mount unit as close as possible to the service panel in close proximity to
the breaker that will power the SPD. Use #10 (NEMA 12) or #6 (NEMA 1)
mounting hardware. To maximize performance, keep wire length to the surge
protective device (SPD) as short as possible.
#12 AWG wiring is provided with unit. To reduce the wiring impedance to
surge currents, the phase, neutral (if required), and ground conductors
are recommended to be twisted together and routed in the same raceway
(conduit).
Feed all wires into the panel through the knockout selected and secure the
conduit connection.
DANGER

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HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Do not supply more than 125VAC or 5 Amps to contacts.
• Conrm 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.
ASCO 350 Surge Protective Device (SPD)
Installation
Before making connections to the unit, verify the unit model number and
nameplate voltage rating are appropriate for connection to the power source
(See table).
1. Turn o󰀨 all power supplying this equipment before working on or inside
equipment.
2. It is recommended that a circuit breaker be used for installation and
connection to the service panel. See pages 9-10 for recommended
amperage.
3. Connect the white wire (if provided) of the SPD to the neutral of the
supply, and connect the green wire (if provided) of the SPD to source
ground.
4. Connect each Black Phase Wire to corresponding phase on the service
panel.
5. If the relay contact wires for remote sensing are not used, secure and
insulate the wires so they do not interfere with operation.
6. Replace the barrier, cover/door and/or trim to the equipment.
7. Equipment may be re-energized after all the above steps are complete.
If using remote sensing, these wires are connected to COM (orange),
NC (blue), and NO (yellow) respectively.
Relay’s maximum switching capacity is 24V, 2A.
Apply power to the SPD and check status indications are normal. The
NEMA 1 unit status light will be “green” for normal operation. The NEMA
12 unit status lights will be “green” and the red “service” indicator will
be o󰀨 for normal operation. If normal status indicators do not exist, see
“TROUBLESHOOTING”.
Wiring Connections
Applying Power
Troubleshooting
DANGER
If any of the diagnostic indicators indicates a problem (i.e. red LED ON, and/
or green LED OUT), check all connections and voltages to the unit. If all
connections are acceptable, and proper voltages are supplied to the unit, to
self-service tools and chat support visit se.com/us/en/work/support or call
1-888-778-2733 for technical assistance.

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ASCO 350 Surge Protective Device (SPD)
Model Number Congurator
Table 1: Model 350 Catalog Number Conguratior
Figure 1: Wiring Diagrams
A = All Standard Modes for that
Voltage Code
B = All Modes except L-G
Standard for H, N, S, X & Y Sux
Voltage Codes. Requires 05 kA rating.
E = L-L Modes Standard for C, D & L Sux
Voltage Codes. Requires 05 kA rating.
Delete Mode Options & Alt.
Congurations: Contact Factory
10 = 100kA Per Phase
(50kA Per Mode)
05 = 50kA Per Phase
(25kA Per Mode)
In Addition - For
B & E Modes of
Protection Only: ‘05’
Denotes 50kA Per
Mode
C = NEMA 1 Non-Metallic
Single LED (Default)
L = NEMA 12 Steel
One LED Per Phase
1 = Type 1
0 = No Trailing
Accessory/Option
Common Systems
120Y = 208Y/120V Wye - 3Ø 4W + ground
120S =
240/120V Split Phase - 1Ø, 3W + ground
120N = 120V Single Phase
120X = 208Y/120V Wye, 3W + ground (No Neutral)
230N = 230V Single Phase
230Y = 400Y/230V Wye - 3Ø 4W + ground
240D = 240V Delta - 3Ø 3W + ground
277Y = 480Y/277V Wye - 3Ø 4W + ground
277X = 480Y/277V Wye, 3W + ground (No Neutral)
400D = 400V Delta - 3Ø, 3W + ground
480D =
480V Delta, 3Ø 3W + ground

Voltage Codes
P
Per Phase
kA Rating
System
1
UL 1449
Type1/Type 2
0
Post Part Number
Accessory/Option(s)

kA Rating
Per Phase
Modes of
Protection

Monitoring
Options
R
Connection
Type
W350
Model 350
Product Line
Enclosure

SPLIT
2 Phases,
1 Neutral,
1 Ground
Phase B (Black)
Phase A (Black)
Neutral (White)
V
V
}
}
Ground (Green)
WYE
3 Phases,
1 Neutral,
1 Ground
}
Phase A (Black)
Phase B (Black)
Neutral (White)
Phase C (Black)
Ground (Green)
A
C
N
V
B
SINGLE POLE
1 Phase,
1 Neutral,
1 Ground
V
}
Neutral (White)
Phase A (Black)
Ground (Green)
DELTA
3 Phases, 1 Ground
Phase A (Black)
Phase C (Black)
Phase B (Black)
Ground (Green)
}
V
CORNER GROUND
DELTA (B grounded)
2 Phases, 1 Ground
Phase A (Black)
Phase C (Black)
Ground (Green)
V
}

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ASCO 350 Surge Protective Device (SPD)
NEMA 12 Unit
NEMA 12 Unit
Circuit Breaker and Wire Size
Dimensions (in. / mm.)
and Weight (lb. / kg.)
Overcurrent
Protection
20A Recommended
Connection Wire Phase/Neutral/Ground
18” of #12 AWG Included
Summary Alarm
Contacts
18” of #18 AWG Included; 24V, 2A max (All units)
Normally Open (NO) Yellow
Normally Closed (NC) Blue
Common (COM) Orange
(With AC Applied)
Weight: 3 lbs [1.4 kg]

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ASCO 350 Surge Protective Device (SPD)
NEMA 1 Unit
NEMA 1 Unit
Circuit Breaker and Wire Size
Dimensions (in. / mm.)
and Weight (lb. / kg.)
Overcurrent
Protection
20A Recommended
Connection Wire Phase/Neutral/Ground
18” of #12 AWG Included
Summary Alarm
Contacts
18” of #18 AWG Included; 24V, 2A max
Normally Open (NO) Yellow
Normally Closed (NC) Blue
Common (COM) Orange
(With AC Applied)
Weight: 1.9 lbs [0.8 kg]
ASCO®