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Technology
Mechanical data
TK Elevator
BA, TW45 | 6231003860 | 03/2023
4.1.2 Brake
Version for deployment in the machine room and ISIS1 (MRL)
Designation Unit Technical data
Manufacturer Chr. Mayr GmbH
Type ROBA-stop RSZ125
Version Machine room ISIS1 (MRL)
Braking torque [Nm] 2 x 50 100 (2 x 50)
Braking torque setting Not possible
Design
2-surface disc brake (2 mechanical brake circuits with a joint electro-
magnetic circuit for release)
Brake linings Asbestos-free
Brake disc diameter [mm] 130
Air gap [mm] 0.5 +0.25
Air gap setting Not possible
Electrical release 1 magnetic clamp with armature base plate
Operating voltage
Overexitation / holding
current
[VDC] 180 / 90 110 / 55
Operating current
Overexitation / holding
current
[A] 1.68 / 0.84 2.58 / 1.29
Performance data
Overexitation / holding
current
[W] 303 / 76 284 / 71
Monitoring devices Release monitoring (microswitch)
Manual release
Manual release lever (permanently
mounted)
1)
without
Connection lines, coil and
microswitch
[m]
1 m (with end sleeves; connection
lines have intermediate clamping
in the motor terminal box)
3 m (with end sleeves; connection
lines are routed through the motor
terminal box)
Type of protection IP54
Weight [kg] approx. 11
CSA LR 34805
Type approval code without (not required)
Tab.3 ATR_1_21_0023_0
1)
Manual release of both brake circuits; single-circuit test by means of pluggable test gauges.
In general, this brake is made with brake monitoring (microswitch).
This brake is also used for the ISIS1 version with the machine in the shaft pit,
but in an adapted version with altered voltage and without a manual release
lever. With ASME A17.1, the brake is regarded as 100 Nm (2x50 Nm).
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