SURGE PROTECTIVE DEVICES
LDP
LIGHT DUTY FOR AC APPLICATIONS
featureS and benefitS
• Listed by ETL to UL 1449 3rd Edition for a Type 1 SPD application.
• Multiple Metal Oxide Varistors (MOVs), with individual current fusing
and thermal disconnects for each MOV.
• LED indicates proper functioning of L-N MOVs.
• Intended for use on U.S., TN-C, TN-C-S and TNS grounded systems.
MODEL NUMBER SCHEME
kA
Rating
Voltage
L D P X X – Y Y Y – Z
20 120 1 L1-N, N-G (1 LED)
25 127 2 L1-N, L2-N (2 LEDs)
30 230 3 L1-G, L2-G (2 LEDs)
277 4 L1-G, N-G (1 LED)
5 L1-N, L1-G (2 LEDs)
6 L1-N (1 LED)
7 L1-G (1 LED)
8 N-G (0 LEDs)
9 L1-L2 (1 LED)
Example: LDP30-120-1
30kA device suitable for 120V systems, designed to protect L1-N and N-G mode
A dedicated breaker should be ≥20A at main panel or ≥ 10A at subpanel.
Warranty
3-years
Available Options
Mounting Bracket Add suffix -B
Modes
Protected
Product SPecificationSavailable configurationS
Electrical
Nominal Discharge Current Rating (I-n) 10kA
Operating Frequency 47–63Hz
Connection Methods Parallel to Load (shunt)
18" #14 AWG wires
Direct connect or Breaker
Modes of Protection L-N, L-G, N-G
Fault Rating (SCCR) 65kAIC
Response Time Less than 1 nanosecond
Standard Monitoring LED status indicator lights (one per phase)
Mechanical
Weight 1 lb. (.5kg)
Enclosure Type NEMA 1, Non-metallic
Installation Location Indoor
Mounting Method NPS Thread & Aluminum Bracket
Operating Environment -40° to +176°F (-40° to +80°C)
Altitude Up to 16,400 ft. (5000 m)
Product Design Individually fused MOVs
Overcurrent Fusing
Thermal Fusing
Regulatory
UL 1449 3rd Edition Type Type 1
UL 1283 No
IEEE C62.41.1, .2, C62.45 Yes
Listed By ETL
ldP Performance data
Model Number Voltage Configuration Protection Modes MCOV
6kV 3000A VPR
LDP-xx-120 120 L-N 150 700V
L-G 150 700V
N-G 150 700V
LDP-xx-127 127 L-N 180 700V
L-G 180 700V
N-G 180 700V
LDP-xx-230 277 L-N 320 1000V
L-G 320 1000V
N-G 320 1000V
LDP-xx-277 480 L-N 320 1000V
L-G 320 1000V
N-G 320 1000V
UL 1449 3rd Edition
dimenSional SPecificationS
2.72"
(69 mm)
2.2"
(56 mm)
2.2"
(56 mm)
2.13"
(54 mm)
#14 AWG (2mm2)
STRANDED WIRE
600V PVC INSULATION
LOCKNUT
1/2–14 NPS THD.
© 2015 Thomas & Betts Corporation. All rights reserved. Printed in the U.S.A.
01/06/15