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TECHNICAL ASSISTANCE
Our staff is ready to support you and answer any questions.
Monday through Friday, 8:00 a.m. to 5:00 p.m. (EST) at 800-647-1911.
WARRANTY STATEMENT
During the applicable warranty period, any Joslyn™surge protector device which fails due to defect
in materials, workmanship, or any electrical anomaly,
including lightning, shall be repaired or replaced at Joslyn’s discretion.
Prior to shipment of any suspect or known defective product to Joslyn a Return Material
Authorization (RMA) number must be obtained. An official Joslyn RMA n
instructions can be obtained from the distributor where the product was originally purchased.
Distributors can obtain the official Joslyn RMA number by contacting the Joslyn Customer Service
Department at 800-647-1911. Products arriving at Joslyn without an
official RMA number will not be accepted and will be returned freight collect to the original point
of shipment.
Products being
to the nominated point of return as shown on the RMA documentation.
The Company shall have no liability under this warranty for problems or defects directly or indirectly caused by misuse of the Product, alteration of the Product (including removal of any warning labels), accidents, improper installation, application,
Product.
THIS WARRANTY REPRESENTS THE ENTIRE WARRANTY OF THE COMPANY. ALL OTHER WARRANTIES EXPRESS OR IMPLIED, ORAL OR WRITTEN, INCLUDING, BUT NOT LIMITED TO, THE
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED.
THE LIABILITY OF THE COMPANY, AT ITS SOLE OPTION, UNDER THIS WARRANTY IS
EXPRESSLY LIMITED TO THE REPLACEMENT OR
OF. IN NO EVENT SHALL THE COMPANY BE LIABLE OR RESPONSIBLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY KIND OR CHARACTER, NOR SHALL ITS
LIABILITY EVER EXCEED THE PURCHASE PRICE PAID TO JOSLYN FOR SUCH DEFECTIVE
PRODUCT.
This warranty is not transferable and may only be enforced by the original purchaser. Claims
under this warranty must be submitted to
suspected product defect.
returned with an official Joslyn RMA number should be shipped by prepaid freight
operation or improper repair of the
REPAIR OF THE DEFECTIVE PART THERE-
Joslyn within thirty (30) days of discovery of any
umber and shipping
LDP Series
Surge
Protective
Device
Installation
Operation and
Maintenance
Manual
Warranty Period
LDP Series 3 Years from original date of purchase
5900 Eastport Boulevard Richmond, VA 23231-4453 USA
TEL: 800.647.1911 FAX: 804.236.4047 www.joslynsurge.com
LDP™INSTALLATION, OPERATION AND MAINTENANCE MANUAL MMLDP 10.9.09
®
LDP™INSTALLATION, OPERATION AND MAINTENANCE MANUAL
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DESCRIPTION
The LDP Surge Protective Device (SPD) is designed for protection of downstream distribution
equipment and wiring as well as most sensitive electrical and electronic loads from the effects of
overvoltage transients that might result from lightning, induction, and switching of loads or
capacitor banks. This is a light duty device and should be used in minimum to moderate lightning
environments, or in hi
device installed at service entrance.
ightning areas if used downstream of a primary, heavier duty protection
gh l
– Replace the LDP Suppressor if a light is out –
At the end of life, the LDP Surge Protective Device (SPD) will generally fail open circuited and
not trip a dedicated breaker if used. If the breaker is found tripped, it should be reset: If it retrips, replace the suppressor. If it resets and the green LEDs remain lit, the suppressor is sound
and use may be continued.
The voltages from the power service are potentially lethal. Disconnect the power before
WARNING
attempting installation or replacement of this suppressor.
Installation and maintenance of the suppressor should be performed by a qualified
!
electrician.
It is the responsibility of the installer to ensure that all electrical and safety codes and
local jurisdiction requirements are met and the suppressor
is p
roperly installed.
Read these instructions completely before beginning installation.
INSTALLATION
Electrical Service
The LDP Surge Suppressor shall not be connected to an electrical service with an available short
circuit current of more than 65,000 A ms. The LDP does not require an upstream over current
device. If one is used, we recommend 200A maximum. The interrupt rating of the device shall not
be less than the available short circuit current.
The LDP Suppressor is intended to be us
is bonded to ground at the service entrance (types USA and TN-C-S) or bonded to ground at the
source and the source grounding conductor is connected to site ground (type TNS).
The LDP Suppressor can be installed on 2-wire and 3-wire single phase, and 4-wire three phase
services. See diagrams on facing page.
Location
The LDP Suppressor may be inst
alled o
can be located indoor or outdoor; If installed outdoors in hot climates, avoid direct sun exposure.
Orient the unit so the functional status lights are visible. This unit cannot be employed on a flush
mounted load center with a finished wall surface.
Connection
Mount through ½” knockout (Ø22 mm) in the electrical panel and secure with l
wires connect to phase (hot) white wire to neutral bar, green/yellow wire to ground bar. Not all
models will have all wire colors.
The black or brown (hot) and white or blue (neutral) wires may connect across the main lugs or
buses in the panel (if so provisioned with connection means). The suppressor can also be connected to a double ganged breaker suitable for use with #14 wire – thi
isolated for test or replacement without de-energizing the electrical service. Use 20 A min circuit
breaker at main panel; use 10 A min at subpanel. To optimize protection levels: this breaker should
be adjacent to the panel’s main lugs or main disconnect breaker; minimize suppressor wires length
and avoid unnecessary bends in suppressor wires.
Monitoring
nternal condition of this device and its protective function are monitored by
On some models
the i
green LEDs on the face of the unit. When the LEDs are lit, the suppressor is functioning properly
and providing protection.
nly on grounded electrical services where the neutral
ed o
n the line or load side of the main service disconnect. It
ock n
ut. Black
s m
ethod allows the device to be
Model
LDP-yy-xxx-1
LDP-yy-xxx-2
LDP-yy-xxx-2
LDP-yy-xxx-3
LDP-yy-xxx-3
LDP-yy-xxx-4
LDP-yy-xxx-5
LDP-yy-xxx-6
Protection Modes
L1-N, N-G
L1-N, L2-N
L1-G, L2-G
L1-G, N-G
L1-N, L1-G
L1-N
Optimum Application/Location
2-wire branch circuit (local lightning conditions)
3-wire service entry*
2-wire L-L branch circuit w/o neutral connected loads
2-wire incoming branch circuit, common mode lightning protection
2-wire branch circuit (no local lightning)
2-wire service entry*
*within 20 m of service entry, minimal lightning environment
within 10 m of service entry, moderate lightning environment
20 120
25 127
30 230
277
2-WIRE CIRCUITS 3-WIRE CIRCUITS
L
N
G
LDP-yy-xxx-1
LDP-yy-xxx-4
LDP-yy-xxx-5
LDP-yy-xxx-6
For single phase voltages where L-N
could be 120, 230, or 277
LDP-yy-xxx-2
LDP-yy-xxx-3
For split single phase and “2-legs off a wye”
circuits L-N at 120, 230, or 277.
Service may be 120/240V 1ø 3-wire or
4-WIRE CIRCUITS
L
L
N
LDP-yy-xxx-2
L
LDP-yy-xxx-1
G
For three phase circuits,
208Y/120V 2ø 3-wire
120/208, 220/380, 230/415, and 277/480
L
N
L
G
LDP™INSTALLATION, OPERATION AND MAINTENANCE MANUAL LDP™INSTALLATION, OPERATION AND MAINTENANCE MANUAL
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