ASCO POWER TECHNOLOGIES 277 User manual

Surge Protective Devices Installation & Operation Manual
Model 277

© 2019 ASCO Power Technologies. All Rights Reserved
For troubleshooting, call technical assistance at 1-800-237-4567 or [e-mail]
2
IO-75065
12/2019
ASCO Model 277
Surge Protective Device (SPD) with Active Tracking Filter™
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.

© 2019 ASCO Power Technologies. All Rights Reserved
For troubleshooting, call technical assistance at 1-800-237-4567 or [e-mail]
3
IO-75065
12/2019
ASCO Model 277
Surge Protective Device (SPD) with Active Tracking Filter™
Introduction ASCO Model 277 with Active Tracking Filter technology offers high
frequency noise lter capabilities with surge protection for loads up to 20 A
of continuous current. The Model 277 is a DIN or ange mounted SPD/ATF
that helps to protect industrial critical loads.
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 off all power supplying this equipment before working on or inside
equipment.
• Always use a properly rated voltage sensing device to conrm 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 125VAC or 5 A AC 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.
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.
DANGER
Installation 1. Turn off all power supplying this equipment before working on or inside
equipment.
2. Conrm that the unit has the same voltage rating and conguration as
the power system voltage and power system voltage to which it will be
connected.
3. Install the unit and cables as close as possible to the protected equip-
ment and secure.
4. Connect the supply cables to the line side of the SPD/ATF.
5. Complete the circuit by connecting cables from the load of the SPD/ATF
to the protected equipment.
Note: A dry contact connection is available.
6. Check that all connections are secure. Remove all tools and discarded
hardware from the unit.
7. Replace the barrier, cover/door and/or trim to the equipment.
8. Equipment may be re-energized after all the above steps are complete.

© 2019 ASCO Power Technologies. All Rights Reserved
For troubleshooting, call technical assistance at 1-800-237-4567 or [e-mail]
4
IO-75065
12/2019
ASCO Model 277
Surge Protective Device (SPD) with Active Tracking Filter™
Table 1: ASCO Model 277 Voltage Ratings
Service Voltage MCOV Continuous
Current
Normal
Discharge
Current
Fusing Circuit
Breaker Size Certication Catalog Numbers
120 V, 50/60 Hz, 1-phase
2 wire + ground
150 V
(L–N)
3 A
3 kA 25 A Class CC
Fuse
UL1449 /
UL1283 CSA
C22.2 No.
269.5-17
277120NF003AN3N0
5 A 277120NF005AN3N0
10 A 277120NF010AN3N0
20 A 277120NF020AN3N0
240 V, 50/60 Hz, 1-phase
2 wire + ground
320 V
(L–N)
3 A 277240LF003AN3N0
5 A 277240LF005AN3N0
10 A 277240LF010AN3N0
20 A 277240LF020AN3N0
Table 2: ASCO Model 277 General Specications1
Mounting Power
Connection
Wiring (Copper
Wire)
Terminal
Torque Operating / Storage Temperature Catalog Numbers
DIN rail or
surface mount
Line /
Neutral /
Ground
18–12 AWG 4 lb-in.
(0.45 N•m)
+32 °F to +77 °F (0°C to +25 °C)
277120NF003AN3N0
277120NF005AN3N0
277120NF010AN3N0
277120NF020AN3N0
14–10 AWG
7 lb-in.
(0.45 N•m)
277240LF003AN3N0
277240LF005AN3N0
12–10 AWG 277240LF010AN3N0
277240LF020AN3N0
1 Contains no serviceable parts.

© 2019 ASCO Power Technologies. All Rights Reserved
For troubleshooting, call technical assistance at 1-800-237-4567 or [e-mail]
5
IO-75065
12/2019
ASCO Model 277
Surge Protective Device (SPD) with Active Tracking Filter™
Figure 1: ASCO Model 277 DIN Rail Installation and Removal
Figure 2: DIN Clips
Note: DIN-Rail clips can be positioned for vertical or horizontal
installation.

© 2019 ASCO Power Technologies. All Rights Reserved
For troubleshooting, call technical assistance at 1-800-237-4567 or [e-mail]
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LINE INPUT
FROM SOURCE
RELAY
CONTACTS
TO REMOTE
INDICATION
IF NEEDED
TO LOAD OR
EQUPMENT
TO PROTECT
NO COM NC
LINE LOAD
GND
L/L1
N/L2
GND
L/L1
N/L2
GND
ASCO Model 277
Surge Protective Device (SPD) with Active Tracking Filter™
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Apply appropriate personal protective equipment (PPE) and follow safe
electrical work practices. See NFPA 70E, CSA Z462, or NOM-029-
STPS.
Failure to follow these instructions will result in death or serious injury.
Indicator Status ON =
The device is installed correctly and the line side has power.
Indicator Status OFF =
Check connections, verify that the line voltage is at the point of connection; if
all is correct, then replace the device.
DANGER
Diagnostic Operation
Table 3: ASCO Model 277 Dry Contact Conguration
Dry Contact Terminal Power OFF Power ON
N/O Normally Open Open Closed
COM Common Common Common
N/C Normally Closed Closed Open
Figure 3: ASCO Model 277 Connections and Wiring

© 2019 ASCO Power Technologies. All Rights Reserved
For troubleshooting, call technical assistance at 1-800-237-4567 or [e-mail]
7
IO-75065
12/2019
ASCO Model 277
Surge Protective Device (SPD) with Active Tracking Filter™
Dimensions (in. / mm.)
3.83
[97.2]
3.06
[77.7]
4.06
[103.1]

IO-75065 Rev- 12-19
14550 58th Street North
Clearwater, Florida 33760
P [phone]
P [phone]
F [phone]
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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.