Original assembly/operating instructions Gear limit switch Type series 51 • No. 151-00004 H • 01.2018
22
5
Structure and function
5.1
Component designations
1
Gear part
5
Flange
2
Switch component
6
Drive shaft, design with parallel key
3
Housing, IP65 shown as an example
7
Cam disc in the gear part
4
Adjustment worm
5.2
Design, task and function of the assembly groups
The GCLS consists of a gear component (1) and a switch component (2), which are accommodated in a housing
(3). The torque is transmitted in a positive locking way to the cam disc (7) by the continuous drive shaft (6). The
gear parts are made of high quality plastic and are maintenance-free.
GCLSs are manufactured as standard in protection class IP00 as built-in switches. The GCLS can be mounted in
an aluminium housing of protection class IP65 or in a glass fibre reinforced polycarbonate housing in protection
class IP66 and IP65. For the protection class of the available designs, see the type code section 4.1.8.
The planetary gears are made of thermoplastic material. The switching stages are constructed with the same
parts as the gear stages, through the applied modular technique. In addition, there is a cam disc (7) and an
adjustment worm (4).
The gear and switching stages are mounted in a glass fibre reinforced plastic housing, see section 4.1.2 and
section 4.1.3. The contacts are actuated by the switching stage cam discs.
5.2.1
Electrical connection versions
Various connection versions can be supplied:
•
Screw connections for cross sectional area 0.5 − 1.5 mm2/ AWG 22 − 16
•
Flat plug 6.3 x 0.8 mm
2
IP00 without finger protection
IP20 with finger protection
5.2.2
Mounting position
The GCLS can be mounted in any position with or without a housing.
Fig. 4
