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ABB OTM C 21D - User Manual

ABB OTM C 21D
32 pages
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INSTALLATION AND OPERATING INSTRUCTION
Automatic Transfer Switch
OTM_C_21D
Automatic Transfer switch
34OTM_C_21D rev. E / 1SCC303015M0201 / EN
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ABB OTM C 21D Specifications

General IconGeneral
Mounting TypeDIN Rail
Rated Impulse Withstand Voltage (Uimp)8 kV
Utilization CategoryAC-22A
Protection Degree (IP Rating)IP20
Connection TypeScrew Terminals
Device TypeSwitch
Mechanical Life20, 000 operations
Electrical Life10000 cycles
MountingDIN rail mounting
StandardsIEC 60947

Summary

Product Overview

Switching Sequences

Explains automatic transfer sequences: Line 1 priority, No line priority, Manual return.

Quick Start

Automatic Operation

Details how to enable and use the automatic transfer modes.

Modbus Communication

Covers Modbus parameters, functional codes, register info, and cyber security.

Interface and Settings

Rotary Switch Settings

Guides on setting transfer delays and voltage thresholds using rotary switches.

Dip Switch Settings

Explains how to configure operating modes using the 9-bit dip switch.

Installation

Maintenance and Troubleshooting

Common Troubleshooting

Lists common faults, their analysis, and troubleshooting methods.

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