400 Series 420 & 425 Surge Protective Devices Installation, Operation and Maintenance Manual Installation, Operation and Maintenance Manual IO-70104 Rev 1, 1/2014
EMERSON NETWORK POWER SURGE PROTECTIVE DEVICE INSTALLATION, OPERATION AND MAINTENANCE MANUAL TABLE OF CONTENTS INSTALLATION Environment .................................................................................................................... 2 Mounting ............................................................................................................................ 2 Wire Sizing/Routing......................................................................................................
The Emerson Network Power 420 & 425 Surge Protective Devices are high quality, high energy surge current diversion system designed to protect sensitive equipment from damaging transient voltage surges resulting from load switching, lightning strikes and other sources. The installer should perform the following steps to assure a quality installation. Please read all instructions before starting the installation of this product.
CAUTION — For proper and safe operation, neutral and ground MUST be reliably connected. Failure to operate this unit from a solidly grounded power source of the proper configuration will reduce or impede operation, and may result in unit failure. ATTENTION - Pour un fonctionnement correct et sûr, le neutre et la mise à la terre doit être connectés de manière fiable.
CONFIGURATION & VOLTAGE (CHART) Installation, Operation and Maintenance Manual 4 IO-70104 Rev 2, 6/2014
SPD WIRING & MOUNTING CIRCUIT BREAKER & WIRE SIZE Overcurrent Protection: ............... 20A Recommended Connection Wire: ........................ Phase/Neutral/Ground; (24’’ of #12 AWG Included) Summary Alarm Contacts ............ 250VAC, 5A Max; (24’’ of #18 AWG Included) Designations are with AC Applied Normally Open ............ (NO) = Yellow Normally Closed .......... (NC) = Blue Common ....................
DIMENSIONAL INFORMATION Model A B C Weight 420 3.24 [82.2] 5.00 [126.9] 425 6.30 [160] 8.04 [204.2] 5.83 [148.0] 1.9 lbs [0.86kg] 2.76 [70.0] 1.2 lbs [0.
Emerson Network Power Surge Protection 100 Emerson Parkway Binghamton, NY 13905 800 288 6169 Phone (U.S. & Canada Only) 607 721 8840 (Outside U.S.) 607 722 8713 FAX United States of America EmersonNetworkPower.com/Surge While every precaution has been taken to ensure accuracy and completeness in this literature, Emerson Network Power assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions. © 2014 Emerson Network Power.
