Introduction; Use Of Symbols; Explanations Of Abbreviations And Terms - ABB OTM_C Series Installation And Operating Instruction

1. Introduction

1. Introduction
This manual describes the installation and the basic operation of the motorized change-over
and transfer switches, types OTM_C. The instructive part is followed by a section on available
accessories.

1.1 Use of symbols

Hazardous voltage: warns about a situation where a hazardous voltage may cause
physical injury to a person or damage to equipment.
General warning: warns about a situation where something other than electrical
equipment may cause physical injury to a person or damage to equipment.
Caution: provides important information or warns about a situation that may
have a detrimental effect on equipment.
Information: provides important information about the equipment.

1.2 Explanations of abbreviations and terms

OTM_C: Motorized change-over switch, the type name
OME_: Motor operator, the type name
OT_C: Change-over switch, the type name
OZXB_ and OZXA_: Terminal clamp sets, the type name, accessories
OTZC_: Bridging bars, the type name, accessories
OTS_: Terminal shrouds, the type name, accessories
OA_: Auxiliary contacts, the type name, accessories
ODPS_: Dual power source, the type name, accessories
4 l 1SCC303002M0206 l ABB Installation and operating instructions, 34OTM_C rev. F