Specification

© Copyright 2009 Leviton Manufacturing Co., Inc. All rights reserved. Q-439
Leviton Manufacturing Co., Inc.
201 North Service Road, Melville, NY 11747
Phone: [phone] FAX:[phone]
Tech Line:1-800-824-3005 (8:30AM-7:30PM E.S.T. Mon-Fri)
web: www.leviton.com email: [e-mail]
Leviton Manufacturing of Canada, Ltd.
165 Hymus Boulevard,
Pointe Claire, Quebec H9R 1E9
Phone: [phone] FAX: [phone]
Leviton S. de R.L. de C.V.
Lago Tana 43 Mexico DF, Mexico CP 11290
Phone: [phone]
www.leviton.com.mx
www.leviton.com/industrial
SURGE PROTECTIVE DEVICES
Type 3 clamp level
Type 2 clamp level
Type 1 clamp level
47120
®
How To Implement an Effective Surge Protection Network
SURGE
PROTECTIVE
DEVICE
PERFORMANCE
TYPE 1 TYPE 2 TYPE 3
Typically mounted on the line
side of the main service entrance.
Protects against external surges
caused by lightning or utility
capacitor bank switching
Typically serves a branch circuit
and protects against residual
lightning energy, motor driven
surges and other internally
generated surges.
Typically used at the protected
equipment. Provides point-of-use
protection, easily replaceable and
it provides the last line of defense
against a lightning strike.
Standardization
The SPD Types (Type 1, 2, 3, 4) are the UL, NEC and IEEE attempt to harmonize with the IEC 61643-1 standard that uses
Class 1, 2, 3 designators. North, Central & South America typically follow the IEEE Standards which identify the 8x20μs
surge waveform instead of the 10x350μs surge waveform, as it more accurately reflects the conditions experienced
during a lightning strike. The UL1449 Standards Technical Panel (STP) generated the new Type 1, 2, 3 and 4 designations
to describe products that fall within the IEEE categories including category A, B and C. Since the test is different, the
name had to be different.
55650
S2000
As part of Leviton’s smart grid
initiative, Leviton has identified
surge protective devices as a
smart grid component capable of improving the reliability of
the North American power distribution system by providing
a level of protection for electronic circuits that include, e.g.,
smart meters, communication networks, wind turbines and
solar systems. Leviton believes that surge protective devices
may also improve the environment by enabling sensitive
electronic equipment, including computer systems and data
center equipment, to endure for their intended lifecycle. This
stamp/seal signifies that these products are Leviton smart
grid components.