Siemens SENTRON 3WL10, Manual

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Description
2.1 Characteristics of the 3WL10 air circuit breaker
Air circuit breaker 3WL10
14
Manual, 11/2017, L1V30499596002-01
Features
The 3WL10 air circuit breaker meets the following requirements:
● High breaking capacity
● Selective protective response
● Integrated metering function with internal voltage tap and expansion module MF Basic /
MF Advanced (with electronic trip units of the 6-series)
● Connection to a fieldbus communication system or Ethernet-based IP communication
(with electronic trip units of the 6-series)
The most important features of the 3WL10 circuit breaker are:
● Compact dimensions
● Rated current I
n
= 630 / 800 / 1000 / 1250 A
● Three breaking capacity classes: 42 kA, 55 kA, and 66 kA (I
cu
at 440 V)
● Optionally a fixed breaker or a withdrawable breaker
● Electronic trip units
● Optional integrated metering function (electronic trip units of the 6-series only)
● Use in AC applications
● No derating of the circuit breaker up to +70 °C in accordance with IEC 60947-2
● Modular and easy-to-fit accessories
Benefits
The 3WL10 circuit breaker provides many different advantages:
● Low space requirements
The 3WL10 air circuit breakers are extremely compact. 3-pole and 4-pole devices of size
0 fit into a 400 mm wide switchboard panel. Two 3-pole 3WL10 circuit breakers can also
be installed side by side in a 600 mm wide switchboard panel.
● Highly modular design
Components such as auxiliary releases, spring charging motors, electronic trip units,
external current sensors, auxiliary circuit signaling switches, automatic reset devices, and
interlocks can all be exchanged or retrofitted at a later stage, thus allowing the circuit
breaker to be adapted to new, changing requirements.