Full Product Manual

11
www.leviton.com/industrial
Type 2 Modular Surge Protective Devices
Leviton’s 74000 and 75000 Series panel
mounted surge protective devices provide
seven-mode protection in WYE-configured,
3-phase AC systems. Designed for most
industrial and commercial environments
with critical operations, these panels
offer complete protection at the building
entrance and distribution panel.
Ordering Information
Catalog Number Description Voltage (V AC) Configuration
Max Surge Current,
Per Mode (Per Phase)
Replacement Modules
74120-7M3 7-Mode Surge Protection Panel 120/208 3Ø WYE, 4-wire + gnd 200kA (400kA) HC120-M40 (7)
74277-7M3 7-Mode Surge Protection Panel 277/480 3Ø WYE, 4-wire + gnd 200kA (400kA) HC277-M40 (7)
75120-7M3 7-Mode Surge Protection Panel 120/208 3Ø WYE, 4-wire + gnd 320kA (640kA) HC120-M53 (7)
75277-7M3 7-Mode Surge Protection Panel 277/480 3Ø WYE, 4-wire + gnd 320kA (640kA) HC277-M53 (7)
74120-7M3
74000 / 75000 Series for 3-Phase Applications
n Protection for up to 200,000 amps (74000 Series) or
up to 320,000 amps (75000 Series) of surge current
per mode
n Seven-Mode protection provides improved performance
and longevity
n Real-time diagnostics monitor power and suppression
status for each phase and provide both LED indicators
and audible alarm
n User-replaceable plug-in modules eliminate the need
to replace the entire surge panel following a damaging
surge event
n Surge event history—including surge magnitude, time,
and date for each surge event—can be viewed on an
easy-to-read display or downloaded for storage
n Equipped with dry contacts for remote monitoring
n NEMA Type 12 enclosure resists dirt, dust and
light splashing water
n Limited lifetime product warranty with free
replacement modules*
*Certain restrictions apply