Brochure

SENTRON
switch disconnectors 3KL/3KM:
Switching with fuses.
Fuse protection against short-circuit and
overload
Switch disconnectors 3KL and 3KM have fuses
which means that they additionally provide
protection against overload and short-circuit.
Their ideal application: As main control and
EMERGENCY-STOP switch for switchboards,
distribution panels and motor feeders.
Switch disconnectors 3KL and 3KM can be
retrofitted in compliance with IEC or British
Standard, as frequency converter protection or
for fast mounting onto busbars. When they are
equipped with SITOR semiconductor protection
fuses, they are even suitable for the highest
requirements – e. g. in UPS systems, frequency
converters or capacitor control systems.
Single-pole IP20 terminal cover
from 63 A to 630 A.
Standard for the 3KM version with
fuses: rear isolating plug connector
for simple mounting and installation,
e.g. in motor control centers (MCCs).
Rotary door-coupling drive mechanism 8UC6 with automatic tolerance compensation: ± 5 mm in the
horizontal and vertical axes: Standard (black) or EMERGENCY-STOP version (red/yellow) – all of the
components from the switch to the operating mechanism have a non-interchangeability function.
Switchable 4th pole can be easily
retrofitted.
Fuses can be simply changed
over: From IEC LV HRC to British
Standard BS 88.
Fuse cover IP 20.
Standard auxiliary contacts from
the Siemens 3SB1 range.
Knob for fixed-
mounted installation
8UC9 as standard
version (black) or as
EMERGENCY-STOP
version (red).
10 l 11