Introduction; Use Of Symbols; Explanations Of Abbreciations And Terms - ABB OTM C Series Installation And Operating Instruction

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M O T O R I Z E D C H A N G E - O V E R A N D T R A N S F E R S W I T C H E S , O T M _ C
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1. Introduction

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