Asco 575 User manual

Surge Protective Devices Installation & Operation Manual
Model 575
Model 570
Model 565
Model 560
Model 570/575
Model 560/565

Installation, Operation and Maintenance Manual IO-70100 RevG 12-172

Installation, Operation and Maintenance Manual IO-70100 RevG 12-173
MONITORING FEATURES
External Status Indicators (Standard)
Summary Alarm Contact (Standard)
Audible Alarm (Standard)
Single or Dual Transient Counter (Optional)
Test Feature (Optional)
Active Surge Monitor (Optional)
TROUBLESHOOTING / SERVICING / MAINTENANCE
Troubleshooting
Servicing
Corrective Maintenance
Preventative Maintenance
INSTALLATION INSTRUCTIONS
Product Installation
Suggested Circuit Breaker and Wire Size – Model 570/560
Dimensional Information – Model 570/560
Suggested Circuit Breaker and Wire Size – Model 575/565
Dimensional Information – Model 575/565
ASCO SURGE PROTECTIVE DEVICE
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
TABLE OF CONTENTS
MODEL NUMBER CONFIGURATION
Operating Environment
Line Side versus Load Side Installation
5
5
5
LOCATION CONSIDERATIONS
Environment
Audible Noise
Service Clearances
Mounting
Warnings Defined
4
4
4
4
4
4
ELECTRICAL CONNECTIONS
Voltage Ratings and Power Source Configurations
Wire Connections
Over Current Protection
NEC® Considerations
Voltage Protection Rating
Circuit Ampacity Limitations
System Grounding and Bonding
Grounding Electrode
Neutral Connection
Parallel Connection / Wire Diagram
7
7
7
7
7
7
8
8
8
9
9
UNPACKING AND INSTALLATION
Unpacking and Preliminary Inspection
Handling Considerations
Storage
4
4
4
4
9
10
11
11
12
12
13
13
13
13
13
13
13
13
13
14
14
14

Installation, Operation and Maintenance Manual IO-70100 RevG 12-174
UNPACKING AND INSTALLATION
Unpacking and Preliminary Inspection
1. Inspect the shipping crate(s) for damage or signs of mishandling before unpacking the unit.
2. Remove any securing bands and cardboard packing and inspect the unit for any obvious shipping
damages.
3. If any damage as a result of shipping is observed, immediately file a claim with the shipping agency
and forward a copy to your local ASCO Surge Protection Sales Representative.
Handling Considerations
Larger units are bolted to a shipping pallet to facilitate handling by forklift or pallet jack. Check the size
and weight. Refer to the cabinet data furnished with the unit.
Storage
The unit should be stored in a clean, dry environment. Storage temperature range is -55ºC (-67ºF) to
+85ºC (+185ºF). Care should be taken to avoid condensation. All packing and shipping materials should
be left intact until the unit is ready for final installation. If the unit has been stored for an extended period
of time, the unit should be cleaned and carefully inspected before placing into service.
LOCATION CONSIDERATIONS
For optimum transient surge protection, coordinated surge suppression should be applied at the service
entrance and all other electrical connections to the building (telephone, CATV, etc.), at known surge
generating loads within the building (large motors, arc welders, switched capacitors, etc.), as well as at
sensitive electronic loads (such as computers, electronic appliances, solid state motor drives, etc.). For
interconnected electronic loads (such as by way of data cabling), transient surge suppression should also
be applied to the interconnecting wiring (data cables).
Environment
Unit is designed for operation indoors in ambient temperatures of -40ºC (-40ºF) to +60ºC (+140ºF) with
a relative humidity of 0% to 95% (non-condensing).
The unit is provided in an industrial use enclosure, which is dust-tight and drip-tight and should not be
installed in areas with excessive dust, corrosive vapors, flammable materials or explosive atmospheres.
Audible Noise
The audible noise of the unit is less than 40 dB at 5 feet, which allows its placement within almost any
room if desired.
Service Clearances
Service clearance is needed for units with hinged doors on the front that are capable of being opened.
Thirty-six inches (36 in/914 mm) minimum is recommended.
Mounting
Unit is intended to be wall mounted. Refer to installation instructions for mounting dimensions and weight.
Warnings Defined
Danger: Indicate[s] a hazardous situation which, if not avoided, will result
in death or serious injury. The signal word “DANGER” is to be limited to
the most extreme situations. DANGER [signs] should not be used for property damage hazards unless
personal injury risk appropriate to these levels is also involved.

Installation, Operation and Maintenance Manual IO-70100 RevG 12-175
UNITS THAT INCLUDE THE ACTIVE SURGE MONITOR OPTION
MODEL NUMBER CONFIGURATION
Danger: Indique une situation dangereuse qui, si elle n’est pas évitée, entraînera la mort ou des blessures
graves. Le mot comme signal DANGER doit être limité aux situations les plus extrêmes. Les signes
DANGER ne doivent pas être utilisés pour les risques de dommages à la propriété, sauf si le risque de
blessures appropriées à ces niveaux est également impliqué.
Warning: Indicate[s] a hazardous situation which, if not avoided, could
result in death or serious injury. WARNING [signs] should not be used for
property damage hazards unless personal injury risk appropriate to this level is also involved.
Avertissement: Indique une situation dangereuse qui, si elle n’est pas évitée, pourrait entraîner la mort
ou des blessures graves. Les signes AVERTISSEMENT ne doivent pas être utilisés pour les risques de
dommages à la propriété, sauf si le risque de blessures appropriées à ce niveau est également impliqué.
Caution: Indicate[s] a hazardous situation which, if not avoided, could result
in minor or moderate injury. CAUTION [signs] without a safety alert symbol
may be used to alert against unsafe practices that can result in property damage only.
Attention: Indique une situation dangereuse qui, si elle n’est pas évitée, pourrait entraîner des blessures
mineures ou modérées. Les signes ATTENTION sans symbole d’alerte de sécurité peuvent être utilisés
pour mettre en garde contre des pratiques dangereuses qui peuvent entraîner des dommages matériels
seulement.
Model #
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
(1-3) Model
575 = Modular, SAD/MOV Hybrid,
R56 Approved
570 = Modular, SAD/MOV Hybrid
565 = Modular, MOV,
R56 Approved
560 = Modular, MOV
(4-7) Configuration & Voltage
See chart on next page
(8-10) Surge Rating Per Phase
P08 = 80kA
P12 = 125kA
P16 = 160kA
P20 = 200kA
P25 = 250kA
P32 = 320kA
P37 = 375kA
P40 = 400kA
P50 = 500kA
P75 = 750kA
P1K = 1000kA
(11) Modes of Protection
A = All Available Modes of Protection
B = Remove L-G mode
F = Remove L-G and N-G modes
(12) Connection Type
C = Wiring terminals/Compression
Lugs
T = Through-Door Disconnect Switch
R = Internal Disconnect Switch
(13) Monitoring Options
R = LED/Relay
A = LED/Alarm/Relay
C = LED/Alarm/Counter/Relay
D = LED/Alarm/Dual Counter/Relay
T = Active Surge Monitor
See “QS-70109” or “IO-70109”
(14) Enclosure
N = Caseless (open style)
G = Type 4 (metal)
H = Type 4X (Stainless Steel)
J = Type 4X (Plastic)
(15) UL 1449 Type
N = No UL 1449
1 = Type 1 Listed
2 = Type 2 Listed
A = Type 4 for use in Type 1
B = Type 4 for use in Type 2
(16) Accessories
0 = Standard
X = SPD with additional
Options/Accessories
Refer to quick start guide
QS-70109 or manual IO-70109
for additional installation and
operation instructions.

Installation, Operation and Maintenance Manual IO-70100 RevG 12-176
CONFIGURATION & VOLTAGE CHART

Installation, Operation and Maintenance Manual IO-70100 RevG 12-177
ELECTRICAL CONNECTIONS
All wiring must comply with the National Electrical Code (NEC®) and applicable local codes.
DANGER! ONLY QUALIFIED PERSONNEL SHOULD INSTALL OR
SERVICE THIS SYSTEM. ELECTRICAL SAFETY PRE-CAUTIONS 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.
DANGER! SEULEMENT LE PERSONNEL QUALIFIÉ DOIT INSTALLER OU MAINTENIR CE SYSTÈME. DES
PRÉCAUTIONS DE SÉCURITÉ EN ÉLECTRICITÉ DOIVENT ÊTRE SUIVIS LORS DE L’INSTALLATION OU
DE LA MAINTENANCE DE CET EQUIPEMENT. POUR EVITER TOUT RISQUE DE CHOC ÉLECTRIQUE,
DÉBRANCHEZ ET VEROUILLER TOUTES LES SOURCES D’ ALIMENTATION DE CET EQUIPEMENT
AVANT DE LE BRANCHER OU LE MAINTENIR.
Voltage Ratings and Power Source Configurations
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 the chart for voltage rating applications
with typical power source configurations.
Wire Connections
With parallel connection, the size of the wiring to the SPD unit is independent of the protected circuit’s
ampacity. NEC® Article 285-21(B) requires surge suppressor connecting conductors to be at least #14
copper or #12 aluminum. To reduce the wiring impedance to surge currents, it is recommended that the
phase, neutral (if required), and ground conductors are twisted together and routed in the same raceway
(conduit). Avoid any sharp bends in the conductors.
Overcurrent Protection
The SPD unit conducts practically no current under normal operation and only conducts very short
duration transient surge currents.
NEC® Considerations
The following is from the National Electric Code 2008 Edition.
NEC® 285.21 Connections
NEC® 285.23 Type 1 SPDs. Shall be installed in accordance with 285.35 (A) and (B).
A. Installation. Type 1 SPD’s shall be installed as follows:
1. Type 1 SPD’s shall be permitted to be connected to the supply side of the service disconnect
as permitted in 230.82(4) or
2. Type 1 SPD’s shall be permitted to be connected in Type 2 locations as specified in 285.24.
B. At the service. When installed at the services, the grounding conductor of a Type 1 SPD shall be
connected to one of the following:
1. Grounded service conductor
2. Grounded electrode conductor
3. Grounding electrode for service
4. Equipment grounding terminal in the service equipment
Voltage Protection Ratings
To obtain the voltage protection ratings (VPR’s), as obtained by Underwriters Laboratory, Incorporated,
in accordance with the Standard for Safety, Surge Protective Devices (SPD’s), Standard 1449, Fourth

Installation, Operation and Maintenance Manual IO-70100 RevG 12-178
Edition, marked on this product, the wire size listed for each product must be utilized to connect the unit
to your facilities’ power grid. Connections made with conductors other than the wire size listed may result
in dierent VPR’s.
Circuit Ampacity Limitations
Representative samples of these products have been investigated by Underwriters Laboratories,
Incorporated to withstand, without exposing live circuits or components at system voltages and fault
currents up to 200,000 AIC, as described in the Standard for Safety, Surge Protective Devices (SPD’s),
Standard 1449, Fourth Edition.
System Grounding and Bonding
The performance and safety of any SPD system is dependent on proper grounding and bonding.
Grounding is required for safety. Correct implementation also enhances equipment performance.
Incorrect grounding can reduce or impede the SPD’s operation. All electrical circuits to the SPD must
include an equipment- grounding conductor as required by the NEC and local codes.
An insulated grounding conductor is required in addition to any metallic raceway, which may be used as
a grounding conductor. For parallel-connected SPDs, the grounding conductor should be the same wire
size as the associated power conductors.
UNGROUNDED POWER SYSTEMS ARE INHERENTLY UNSTABLE AND
CAN PRODUCE EXCESSIVELY HIGH LINE-TO- GROUND VOLTAGES
DURING CERTAIN FAULT CONDITIONS. DURING THESE FAULT CONDITIONS ANY ELECTRICAL
EQUIPMENT, INCLUDING AN SPD, MAY BE SUBJECTED TO VOLTAGES WHICH EXCEED THEIR
DESIGNED RATINGS. THIS INFORMATION IS BEING PROVIDED TO THE USER SO THAT AN
INFORMED DECISION CAN BE MADE BEFORE INSTALLING ANY ELECTRICAL EQUIPMENT ON AN
UNGROUNDED POWER SYSTEM. CONTACT FACTORY FOR UNGROUNDED APPLICATIONS.
ATTENTION – LES SYSTÈMES D’ALIMENTATION NON-MISES À LA TERRE SONT INTRINSÈQUEMENT
INSTABLES ET PEUVENT PRODUIRE DES TENSIONS DE PHASE TRÈS ÉLEVÉES AU COURS DE
CERTAINES CONDITIONS DE DÉFAUT. PENDANT CES CONDITIONS DE DÉFAUT TOUT ÉQUIPEMENT
ÉLECTRIQUE, Y COMPRIS UN SPD (PROTECTEUR DE SURTENSION), PEUT ETRE SOUMIS A DES
TENSIONS SUPERIEURES À LEURS VALEURS STANDARDS. CETTE INFORMATION EST FOURNIE
À L’UTILISATEUR AFIN QU’UNE DÉCISION CORRECTE PEUT ÊTRE PRISE AVANT D’INSTALLER UN
ÉQUIPEMENT ÉLECTRIQUE SUPPLIMENTAIRE SUR UN SYSTÈME D’ALIMENTATION NON-MISE À LA
TERRE. CONTACTER L’USINE POUR LES APPLICATIONS NON-MISES À LA TERRE.
Grounding conductors must be routed with the associated power conductors in the same raceway
(conduit). When metallic raceways are used, adequate electrical continuity must be maintained at all
raceway connections, particularly raceway terminations to the electrical enclosures.
The use of isolating bushings or other means to interrupt a metallic conduit run is a potential safety
hazard and is not recommended.
Grounding Electrode
Surge protective devices do not discharge all surges to ground (earth). Surge protective devices can also
divert the surge current back to its source to complete the electrical circuit.
In the case of lightning whose potential is developed with respect to the earth, the SPD diverts the
surge current to the grounding electrode (earth connection). However, for most transient surges that
are developed by switching loads, the SPD diverts the surge current back to its source without involving
the grounding electrode.

Installation, Operation and Maintenance Manual IO-70100 RevG 12-179
For proper SPD performance, the service entrance grounding electrode system must comply with the
NEC by having all available electrodes (building steel, metal water pipe, driven rods, concrete encased
electrodes, etc.) properly bonded together and connected to the power system grounding.
The use of a separate grounding electrode to ground the SPD defeats the eectiveness of the SPD, is a
potential safety hazard, may cause equipment damage, is an NEC violation (reference NEC 250-51 and
250-54), and is not recommended.
Neutral Connection
NOTICE - FOR PROPER AND SAFE OPERATION, THE SPD’s NEUTRAL MUST BE RELIABLY CONNECTED
TO THE NEUTRAL OF THE SOURCE. FAILURE TO PROVIDE A RELIABLE NEUTRAL CONNECTION MAY
RESULT IN FAILURE!
The ASCO Models 575/570/565/560 Surge Protective Devices (SPDs) are high quality, high energy surge
current diversion systems designed to protect sensitive equipment from damaging transient voltage
surges. Proper installation is required for maximum system performance.
The installer should perform the following steps to assure a quality installation. The entire installation
manual should be read before starting installation. These instructions do not replace national or local
electrical codes. Check applicable electrical codes to ensure compliance. Installation of the SPD system
should only be performed by qualified personnel.
1. Insure that all power is removed before beginning installation. A qualified licensed electrician shall
install all electrical connections.
2. The standard SPD is provided in a NEMA 4 (570/560) or NEMA 4X (575/565) rated enclosures
suitable for use in indoor or outdoor installations.
3. Determine where the SPD is to be mounted, allowing for minimum length of wire between itself and
PARALLEL CONNECTION  WIRE DIAGRAM

Installation, Operation and Maintenance Manual IO-70100 RevG 12-1710
the input power terminals of the service panel. Punch or cut the proper hole size in the side of the
SPD closest to the knockout to be utilized in the service panel. Drill mounting holes in wall at
location picked for SPD next to service panel using mounting dimensions shown in the table below.
Mount surge suppressor to wall using 3/8” mounting hardware.
4. Connect black wires (line or phase) marked L1/A, L2/B or L3/C, the white wire (neutral) marked N,
and the green wire (ground) marked G, of the SPD using the wire range listed below. To yield the
best performance of the SPD within the electrical distribution system, keep all conductors as short
as possible and avoid sharp bends.
5. Connection to the unit’s summary alarm contacts shall be with #18 – 22 AWG. The ratings of
the Form ‘C’ contacts are 5 amps at 250 VAC maximum with a power factor of 1.0. For additional
information, see “Monitoring” section.
6. Apply power. The surge protector is fully operational when the GREEN LED’s on the modules and
the front door of enclosure are illuminated. If the GREEN LED’s are extinguished or a RED LED is
illuminated, check to ensure that power is applied to the SPD. If an abnormal indication is present,
remove power to the SPD and contact ASCO Surge Protection at 1-800-237-4567 or 1-727-535-6339.
7. Periodically monitor the status of the LED’s. Reduced protection exists if the GREEN LED’s are
extinguished or the RED LED is illuminated. Please contact ASCO Surge Protection at 1-800-237-
4567 or 1-727-535-6339.
8. The protection modules in these SPD’s may be replaceable, contact ASCO Surge Protection for
replacement.
NOTICE - If the SPD model is configured to include a neutral connection (“Y”, “H”, “S”, “N”), and a
Neutral connection is not available, please contact factory.
(With AC Applied)
Pin 1 = Normally Open
Pin 2 = Common
Pin 3 = Normally Closed
Summary Alarm Contacts (X2)

Installation, Operation and Maintenance Manual IO-70100 RevG 12-1711
Model 570/560
Suggested Circuit Breaker And Wire Size – Model 570/560
Surge Rating
Per Mode
Allowable Range Factory Suggested Size
Circuit Breaker Size Connection Wire Size
Circuit Breaker
Size
Connection
Wire Size
With
Disconnect
With
Compression
Lugs
With
Disconnect
With
Compression
Lugs
80kA-125kA
40A-150A 15A-175A #8-1/O #14-2/O
60 Amp #6 AWG
160kA-200kA 80 Amp #4 AWG
300kA-375kA 80 Amp #4 AWG
500kA 100 Amp #2 AWG
Dimensional Information – Model 570/560
Series Surge Rating
Per Mode Connection Type A B C D Weight
Model 570
125kA Compression Lug (N) 16” (406) 12” (305) 17.25”
(438) 9.5” (241) 35 lb. (15.9 kg)
Rotary Disconnect (R) 16” (406) 16” (406) 17.25”
(438) 10” (254) 45 lb. (20.4 kg)
160kA-200kA
Compression Lug (N)
Rotary Disconnect (R) 20” (508) 16” (406) 21.25”
(540) 10” (254) 55 lb. (24.9 kg)
375kA
Compression Lug (N) 20” (508) 20” (508) 21.25”
(540) 14” (356) 80 lb. (36.3 kg)
Rotary Disconnect (R) 20” (508) 24” (610) 21.25”
(540) 18” (457) 90 lb. (40.8 kg)
Model 560
80kA-125kA Compression Lug (N) 16” (406) 12” (305) 17.25”
(438) 9.5” (241) 35 lb. (15.9 kg)
Rotary Disconnect (R) 16” (406) 16” (406) 17.25”
(438) 10” (254) 45 lb. (20.4 kg)
160kA-250kA Compression Lug (N)
Rotary Disconnect (R) 20” (508) 16” (406) 21.25”
(540) 10” (254) 55 lb. (24.9 kg)
300kA-375kA Compression Lug (N)
Rotary Disconnect (R) 20” (508) 20” (508) 21.25”
(540) 14” (356) 85 lb. (38.6 kg)
500kA
Compression Lug (N)
Rotary Disconnect (R) 20” (508) 24” (610) 21.25”
(540) 18” (457) 95 lb. (43.1 kg)

Installation, Operation and Maintenance Manual IO-70100 RevG 12-1712
Model 575 / Model 565 - Motorola R56 Approved Models
Suggested Circuit Breaker And Wire Size – 575/565 Series
Surge Rating
Per Mode
Allowable Range Factory Suggested Size
Circuit Breaker Size Connection Wire Size Circuit Breaker Size Connection Wire Size
All Model 575
& Model 565 15A-175A #14-2/O 80 Amp #4 AWG
Dimensional Information – Model 575/565
Model Number R56 Type Weight
575120SP16FCRJ10 Type 1 (MOV/SAD Hybrid) 28 lb. (12.7 kg)
575120YP16FCRJ10 Type 1 (MOV/SAD Hybrid) 32 lb. (14.5 kg)
565120SP16FCRJ10 Type 2 (MOV Only) 24 lb. (10.9 kg)
565120YP16FCRJ10 Type 2 (MOV Only) 28 lb. (12.7 kg)

Installation, Operation and Maintenance Manual IO-70100 RevG 12-1713
MONITORING FEATURES
External Status Indicators (Standard)
These indicators provide a summary of the status of the surge SPD module. For normal conditions, the
green “OK” LED is illuminated and the red “Service” LED is extinguished. If the surge SPD module requires
replacement, the green “OK” LED is turned o and the red “Service” LED illuminated.
Summary Alarm Contact (Standard)
Two sets of summary alarm Form C relay contacts (2 N.O. and 2 N.C.) are provided for remote indication
of the failed surge SPD module. Contacts are rated 5 amps at 250 VAC maximum with a power factor of
1.0. Access to the contacts is provided via contact terminals located on the printed circuit board mounted
on the inside of the unit’s cover.
Audible Alarm (when included)
If the surge SPD module requires replacement, an audible alarm is activated to draw attention to the
fact that repair service is required to restore the system to normal operation. An audible alarm disable
is provided to silence the alarm. The system will automatically reset itself after repair. The audible alarm
switch and “Service” LED can be tested by activating the “Test” switch on the system monitor panel.
Single/Dual Surge Counter (when included) – The surge counters are provided for transient voltage
surge monitoring. The counter totalizes line surges monitored since the last time the counter was reset.
The circuit counts all surges that deviate from the line sine wave. The factory setting is 30% over nominal
line voltage. Other settings include 50%, 70%, and 100%.
“Test” Feature (when included)
The SPD Test feature will perform a self check of every individual fuse link within the SPD to determine
the % of remaining protection. If any 2 Red indicators are on at the same time during the test, the unit is
functioning at <100%. This status does not indicate that the unit is in need of repair.
Active Surge Monitor (Optional)
A web-based monitoring device allowing real time power quality measurements, logged events, statistical
summaries and premium power protection. Understanding the severity, type and timing of the event
allows you to analyze trends and ultimately better manage your electrical system. (See IO-70109 for
further information)
TROUBLESHOOTING/SERVICING MAINTENANCE
Troubleshooting
If status failure indication occurs or summary alarm contacts have changed state, a qualified electrician
shall first determine if the systems voltage and proper phasing exists.
If the SPD remains in an alarm condition once the electrician is satisfied that the electrical system and its
connections are normal, the unit should be repaired.
At this point consult the factory, having available the following information:
• Model number and serial number detailed on the units’ data label
(located on the front of the enclosure).
• Nature of problem – (including condition of all status indicators and alarms).

Installation, Operation and Maintenance Manual IO-70100 RevG 12-1714
Servicing
The ASCO Models 575/570/565/560 include a ten year parts and five year labor warranty. For servicing
assistance, contact your local Sales Representative or ASCO, Surge Protection at 1-800-237-4567 or
1-727-535-6339.
DANGER! ONLY QUALIFIED PERSONNEL SHOULD INSTALL OR
SERVICE THIS SYSTEM. ELECTRICAL SAFETY PRE-CAUTIONS 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.
DANGER! SEULEMENT LE PERSONNEL QUALIFIÉ DOIT INSTALLER OU MAINTENIR CE SYSTÈME.
DES PRÉCAUTIONS DE SÉCURITÉ EN ÉLECTRICITÉ DOIVENT ÊTRE SUIVIS LORS DE L’INSTALLATION
OU DE LA MAINTENANCE DE CET EQUIPEMENT. POUR EVITER TOUT RISQUE DE CHOC ÉLECTRIQUE,
DÉBRANCHEZ ET VEROUILLER TOUTES LES SOURCES D’ ALIMENTATION DE CET EQUIPEMENT
AVANT DE LE BRANCHER OU LE MAINTENIR.
Corrective Maintenance
The ASCO Model 575/570/565/560 SPDs are designed for years of trouble-free operation. However, even
the most reliable equipment may fail under abnormal conditions. Diagnostic indicators are provided to
indicate when the unit needs repair or replacement. To ensure continuity of surge protection, failed
units should be repaired or replaced at the earliest convenient service opportunity. When replacing
surge modules, other components should be inspected for damage and replaced if necessary. Standard
electrical troubleshooting procedures should be used to isolate problems other than failed surge current
diverter modules. When replacing components, use identically rated components for continued proper
operation and safety. Please contact factory for information on replacement parts.
Preventative Maintenance (Inspection and Cleaning)
Periodic system inspections, cleaning, and connection checks are recommended to ensure reliable
system performance and continued surge transient protection.
It is diicult to establish a schedule for preventative maintenance since conditions vary from site to site.
Inspections for failed surge modules using available diagnostics should be done routinely (weekly or
monthly).

Installation, Operation and Maintenance Manual IO-70100 RevG 12-1715

14550 58th Street North
Clearwater, Florida 33760
P [phone]
P [phone]
F [phone]
E [e-mail] IO-70100 RevG 12-17
While every precaution has been taken to ensure accuracy and completeness
in this literature, ASCO assumes no responsibility, and disclaims all liability for
damages resulting from use of this information or for any errors or omissions.
The ASCO and ASCO Power Technologies marks are owned by Emerson
Electric Co. or its ailiates and utilized herein under license. ©2017 ASCO
Power Technologies. All Rights Reserved.