A70-38-0002 Rev P
CFS Family
TITLE
PAGE
Specifications
Installation Procedures
Wiring Diagrams
Installation Checklist
Maintenance
Material Return Policy
Part Number
A70-00-5006
A70-00-5007
A70-00-5008
A70-00-5010
A70-00-5011
A70-00-5012
Model
CFS-120/240-SP
CFS-120/208-3Y
CFS-277/480-3Y
CFS-480-D
CFS-120/240(208)-CPGD
CFS-220/380-352
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3
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Description
MOV 120kA, 4X plastic encl, Split Phase
MOV 120kA, 4X plastic encl, Wye
MOV 120kA, 4X plastic encl, Wye
MOV 120kA, 4X plastic encl, Delta
MOV 120kA, 4X plastic encl, CPGD
MOV 120kA, 4X plastic encl, Wye
All Models
Protection Provided
L-N; L-G; N-G; L-L
Maximum Surge Current
Dissipation per Phase*
120,000 Amps
Maximum Load Current per Phase
Unlimited
Total System Response Time
<1 Nanosecond
Certified Category @ Test
IEEE C62.41 & .45
Yes
Life Cycle Testing
Category C3, Operations
(20,000 volts @ 1.2 x 50 µsec, 10,000 amps @ 8 x 20 µsec)
<1000
Certified Category @ Test
IEEE C62.41 & .45
Yes
Operating Temperature Range
-40º C to +85º C
Operating Humidity (noncondensing)
5% to 95%
Operating Altitude (feet)
Up to 12,000
*8 x 20 µsec I wave per IEEE C62.41
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A70-38-0002 Rev P
The LEA International CFS FAMILY is intended for installation on AC power
systems capable of delivering not more than 25,000 rms symmetrical amperes
at rated voltage.
Read the entire installation and maintenance manual before installing this
surge protection device (SPD).
Check to be certain that the voltage indicated by the model number on the front
of the unit matches the AC nominal line voltage of your service. (Example:
CFS-120/208-3Y)
“120" is the line to neutral voltage; "208" is the line to line voltage; "3Y"
indicates 3 phase, W(Y)E. The CFS FAMILY voltage rating must be the same
as the incoming supply voltage. Contact LEA International’s field service
department with any questions concerning the voltage configuration prior to
system power on.
**WARNING**
Before installing the SPD, AC power must be OFF. Failure to do so could
result in damage to the SPD as well as potential electrical shock hazard
to personnel.
INSTALLATION
The CFS is to be mounted on the side or the bottom of the panel utilizing the
½” nipple provided through a ½” knockout in the panel. Secure the locking ring
onto the ½” nipple and proceed. Where no knockout is available the unit can
be wall mounted via the mounting tabs provided on the unit. Also, a flush
mount option is available.
GROUND
Connect the green ground wire to the ground bus in panel. A #12 AWG green
wire is provided with unit.
NEUTRAL CONNECTION
Connect the white neutral wire to the neutral bus in panel. A #12 AWG white
wire is provided with unit. Keep the lead length as short as possible and avoid
sharp bends to ensure optimum performance.
PHASE CONDUCTOR CONNECTIONS
Connect the black hot wires to the phase lugs. #12 AWG black wires are
provided with unit. In addition, the unit can be connected to a breaker with a
minimum current rating of 20 amps. Keep the lead length as short as possible
and avoid sharp bends to ensure optimum performance. LEA International
recommends a 20 amp breaker for the CFS units.
TYPICAL WIRING METHOD
The CFS FAMILY is connected in parallel with the power system to provide
optimum protection.
FINAL CHECK
Check installation of the SPD as indicated by the provided layout/installation
drawing and verification of proper connection and voltages. Apply external AC
power to the SPD. The unit is now operational. All green indicator lamps
should be illuminated. If not, contact LEA International’s customer service
department at 1-800-882-9110.
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A70-38-0002 Rev P
The following section contains all layout/installation drawings found
within the CFS FAMILY. Locate the appropriate drawing based on the
model number of your system.
MODEL
Part Number
Split Phase (-SP)
A70-00-5006
3 Phase WYE (-3Y)
A70-00-5007
A70-00-5008
A70-00-5012
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A70-38-0002 Rev P
CPGD (Hi-Leg Delta)
A70-00-5011
3 Phase Delta (-D)
A70-00-5010
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A70-38-0002 Rev P
For proper performance of the CFS FAMILY, the qualified installing
electrician may use the following checklist to help in proper
installation:
YES NO
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□
□
□
□
□
□
□
□ □
□ □
□ □
□ □
1. The voltage of the SPD matches actual system voltage.
2. Ground resistance is less than 25 ohms.
3. All wiring conforms to the national electric code (NEC).
4. All conductors are in accordance with the appropriate
layout/installation drawing.
5. All lead lengths are as short as possible.
6. The SPD is installed in parallel with the incoming phase
conductors.
7. After installation, all lights are illuminated and the unit is
functional.
8. All critical loads are protected by the SPD.
additional SPD(s) may be required.
If not,
FOREWORD
CFS FAMILY surge protection device (SPD) is designed for long life without
the need for routine maintenance. The design is of a passive nature, with no
degradation expected. LEA International’s TVSS system will fail only if an
undefined over voltage (a RMS rise in system voltage in excess of the SPD
rating) or a transient in excess of its maximum surge current is experienced.
There are no moving parts. There are LED indicators visible on the outside of
the enclosure, which indicate protection is intact.
VISUAL INSPECTION
Operational status of the SPD is verified by observing the status indicator
lamps. All status lamps "ON" with input power applied indicates normal
operation with all protection modes functioning. CFS units with status indicators
not “ON” require replacement.
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A70-38-0002 Rev P
No product may be returned without the seller's prior written approval.
Transportation charges are to be prepaid by the buyer. Returned item(s) are
subject to the seller's inspection and acceptance. Seller may, at its discretion,
replace any or all return items within a reasonable time after seller
determines that returned item(s) are not in accordance here within; and in
such an event, seller shall not be liable for any damage arising from the
defective delivery or delay caused thereby. When authorized by the seller in
writing, unused products may be returned to the seller, subject to service
handling, restocking charges and rebuilding charges to "as new" condition.
Call LEA International’s customer service department at 800.882.9110 for a return
material authorization (RMA) number. No items will be accepted without a RMA number.
Please have the following information on hand when calling for an RMA number:
MODEL NUMBER
FAILURE DESCRIPTION
PART NUMBER
INSTALLATION DATE
PURCHASED DATE
SYSTEM OPERATING VOLTAGE
LEA JOB NUMBER
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