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General information
Applications
Function
Intended use
•
IEC / DIN EN 62271-1
•
IEC / DIN EN 62271-106
•
IEC / DIN EN 62271-200
•
GB/T14808
9229 0106 176 0-
2020-09-18
Smooth and safe operation of this switching device requires proper transport and
storage, professional installation and assembly, as well as careful operation and
maintenance.
The operating instructions are an integral part of the switching device and contain
all information for commissioning and use.
The basic version and all listed configurations of the vacuum contactors 3TM are
type-tested devices as per IEC 62271-106 (see also "Standards" on page 13)
Area of application
Vacuum contactors 3TM are 1-pole and 3-pole switching devices with an electro-
magnetic operating mechanism for high switching cycles and a rated voltage range
from 7.2 kV to 15 kV (3-pole design) or 4.15 kV to 6.9 kV (1-pole design, rigidly
earthed star point).
Vacuum contactors 3TM comply with the protection class IP00 (stationary, weather-
protected operation) as per EN 60529 and can be used
•
with circuit breakers and fuses,
•
for ambient temperatures from -40 °C to +70 °C / -40 °F to 158 °F,
•
at different altitudes from -1250 m to 2000 m above sea level, special design to
5000 m above sea level
•
for high mechanical vibrations or
•
for use in seismic zones,
•
on ships below deck,
•
on open pit or mining equipment,
•
in stationary or moving rail operation.
The technical data are affected by ambient conditions, installation site, and installa-
tion volume.
Operational currents and overload currents are switched by the vacuum contactor.
3TM vacuum contactors operate in continuous, periodic, and short-term operation.
Suitable for high frequency of operation and unlimited on-time.
Vacuum contactors 3TM are suitable for switching any type of alternating current cir-
cuits under normal operating conditions, such as:
•
Three-phase motors for reversing, turning, and direct operation,
•
Transformers
•
Capacitors, also back-to-back, selected variants
•
Resistor consumers
•
Neutral earthing (with 1-pole vacuum contactor).
The vacuum contactor can be mounted:
•
as a fixed installation (with busbars or cables with cable lugs),
•
on a withdrawable part, or
•
on a carriage.
Standards
Vacuum contactors 3TM comply with the following standards:
High-voltage switching devices and switchgear – Part 1: Common specifications
High-voltage switching devices and switchgear – Part 106: Contactors and control-
lers
High-voltage switching devices and switchgear – Part 200: AC metal-enclosed
switchgear and controlgear
High voltage alternating current contactors and contactor-based motor-starters
General information
13
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