SIEMENS
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Siemens MD 50.1 · 2015
Motor options
Mounted components
Brake
11
■
Brake options
(continued)
Enclosed brake
The brakes L can be supplied as enclosed brakes. This version
is standard for brakes FDX.
Enclosed brakes include a dust protection ring around the
circumference and an integrated shaft sealing ring at the shaft
outlet. This prevents the release and penetration of dust, mois-
ture, and other pollution. Other advantages are reduced noise
when applying the brake as well as, in combination with a motor
anti-condensation heater, a reduced risk of the rotor freezing on
the friction surfaces.
In addition, a condensation drain hole can be incorporated in the
dust protection ring for brakes L.
The enclosed brake can also be shipped in combination with
a manual brake release lever and a manual brake release lever
with locking mechanism.
Corrosion protection
The brakes L are supplied as standard with corrosion protection.
A friction plate or adapter flange is always mounted between
the mating friction surface (end shield on the ventilation side)
and the rotor. The rotor is made of a rustproof material.
Brake with increased corrosion protection
The adapter flanges and armature disks of the brakes are
chromium-plated for increased protection against corrosion.
This prevents the friction surfaces from seizing up.
Increased corrosion protection is employed when a motor is
used in corrosive environmental conditions (high air humidity,
dripping water, crane systems, for example) and/or when longer
standstill times are involved.
The brakes FDX are supplied as standard with increased
corrosion protection.
Order code:
Enclosed brake
C01
Enclosed brake
with condensation drain hole
C11
Order code:
Increased corrosion protection
C10
Corrosion protection
Brake type
Design
Material
L4
L8
L16
L32
L60
L80
L150
L260
L400
FDX30
FDX40
Standard corrosion protection
Friction surface to
the motor
Friction plate of
stainless steel
✓
✓
✓
✓
✓
✓
Adapter flange with
thin zinc film
✓
✓
✓
End shield
✓
1)
✓
Armature disk
Gas-nitrided
✓
✓
✓
✓
Thin zinc film
✓
✓
✓
✓
✓
Increased corrosion protection
Friction surface to
the motor
Friction plate of
stainless steel
✓
✓
✓
✓
✓
✓
Chromium-plated
adapter flange
✓
✓
✓
✓
✓
Armature disk
Chromium-plated
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
1)
For motor sizes 180 and 200
© Siemens AG 2015