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ASCO Manuals & User Guides

ASCO is a premier global brand for critical power reliability solutions, automatic transfer switches, and industrial fluid automation products.

Tip: include the full model number printed on your ASCO label for the best match.

ASCO Support

Official site: https://www.ascopower.com
General support: https://www.se.com/us/en/work/support/ascopower/
Warranty & registration: Warranty info
Support phone: 1-800-800-2726
Contact form: Contact manufacturer support

ASCO manuals

Selected manuals from manuals+ curated for this brand.

ASCO Series 165 Automatic Transfer Switch Owner's Manual

manual

Owner's manual for the ASCO Series 165 Automatic Transfer Switch (100/200A, 240V AC). Covers installation, operation, testing, and troubleshooting for standby power systems with 2-wire start generators. Not for life-support.

ASCO Series 386 Non-Automatic Transfer Switch Operator's Manual | Installation & Service Guide

Operator's Manual

Operator's Manual for ASCO Series 386 Electrically-Operated Non-Automatic Transfer Switches (600 amps, J-design). Covers installation, testing, adjustments, maintenance, and troubleshooting. Essential guide for electrical professionals.

ASCO Series 386 Non-Automatic Transfer Switch Operator's Manual

manual

Operator's Manual for the ASCO Series 386 Electrically-Operated Non-Automatic Transfer Switches. Covers installation, sequence of operation, testing, service, adjustments, and optional features for various models.

ASCO 300 Series H3MGDQ Transfer Switch Wiring Diagrams and Technical Data

Wiring Diagram

Comprehensive technical documentation for the ASCO 300 Series H3MGDQ manually operated transfer switch (600-1200 Amperes), including detailed wiring diagrams, physical layouts, accessory information, and technical specifications.

ASCO 5210 Digital Power Meter Operator's Manual

Operator's Manual

Comprehensive operator's manual for the ASCO 5210 Digital Power Meter, detailing installation, setup, operation, specifications, and troubleshooting for monitoring electrical power systems.

ASCO Series 300 Manual Transfer Switch Operator's Manual

Operator's Manual

Operator's manual for the ASCO Series 300 Manual Transfer Switch (MTS), G-design, covering installation, operation, testing, and maintenance for models 1600 through 3000 Amperes.

ASCO Series 300 Automatic Transfer Switches Operator's Manual

Manual

Operator's manual for ASCO Series 300 Automatic Transfer Switches (ATS), covering installation, operation, testing, adjustments, and control features for 600-1200 amp models. Essential guide for electricians and maintenance personnel.

ASCO Series H150, H300, H386 Transfer Switches: Outline and Mounting Data (600-1200 Amps)

Datasheet

Detailed outline and mounting specifications for ASCO Series H150, H300, and H386 automatic transfer switches, covering 600 to 1200 Amp ratings. Includes dimensional data, cabling information, enclosure requirements, and control…

ASCO Series 300 Automatic Transfer Switch Dimensions and Mounting Data (600-800 Amp)

datasheet

Technical specifications, outline drawings, and mounting dimensions for ASCO Series 300 Automatic Transfer Switches (ATS) rated 600 through 800 Amperes. Includes general notes, terminal information, and control panel cutout details.

ASCO Series 300 Generator Paralleling System Operator's Manual

Operator's Manual

This operator's manual details the ASCO Series 300 Generator Paralleling System, covering installation, operation modes, features like bus optimization and load demand, operator controls, and factory default settings for efficient…

ASCO 300 Series Transfer Switches: Outline and Specifications (1000-2000 Amp)

Technical Specification

Detailed composite outline and technical specifications for ASCO 300 Series automatic transfer switches, covering 1000 to 2000 Amp models. Includes dimensions, general notes, and cabling information for electrical installations.

ASCO Series 300 Automatic Transfer Switch Wiring and Control Diagrams

Technical Specification

Detailed wiring diagrams, control features, and physical layout descriptions for ASCO Series 300 Automatic Transfer Switches (ATS) rated 225, 260, and 400 Amperes with Group 1 Controls.