ASCO Model 331 Surge Protective Device

120/240 VAC | 80kA/Phase

The ASCO Model 331 (Edco® EMC-240B) Surge Protective Device is designed to protect AC distribution panel circuits or 120V power supplies feeding sensitive electronic equipment. Electrically, the unit incorporates MOV and thermal fusing technology.

ASCO Model 331 Surge Protective Device

	Language	Format	Size	Date
Technical leaflet
ASCO Surge Protective Devices \| Electrical Grounding Configurations (Version 1.0)	English	pdf	837.7 KB	01/05/19
ASCO 300 SERIES Model 331 (Edco EMC-240B) 120/240VAC Surge Protection (Version 1.0)	English	pdf	718.7 KB	18/03/19
Warranty
ASCO Standard Limited Warranty Surge Protection Products (Version 1.0) Description ASCO Standard Limited Warranty Surge Protection Products	English	pdf	133 KB	18/03/19	Description ASCO Standard Limited Warranty Surge Protection Products
White paper
ASCO White Paper \| The Need to Protect Outdoor Circuits from Transient Overvoltages (Version 1.0) Description National Electrical Code® (NEC® ) Article 708 – Critical Operations Powers Systems (COPS) requires certain surge protection measures in facilities that must operate continuously. This document explains the requirements and describes a best practice for compliance.	English	pdf	2.1 MB	16/09/19	Description National Electrical Code® (NEC® ) Article 708 – Critical Operations Powers Systems (COPS) requires certain surge protection measures in facilities that must operate continuously. This document explains the requirements and describes a best practice for compliance.
ASCO White Paper \| White Paper Milestones -Supporting the Critical Power Community by Sharing Valuable Knowledge (Version 1.0) Description As the thought and technology leader in critical power solutions, ASCO Power Technologies will publish its 100th white paper in July of 2019. To recognize this milestone, the following sections describe the scope and accomplishments of the white paper program.	English	pdf	1.9 MB	05/08/19	Description As the thought and technology leader in critical power solutions, ASCO Power Technologies will publish its 100th white paper in July of 2019. To recognize this milestone, the following sections describe the scope and accomplishments of the white paper program.

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