Thomson
Thomson Electrak
®
LL Actuator - Installation Manual - 2020-11
7
4.4 Mechanical installation
4.4.1 General installation safety notes
• Never work on the actuator with the power switched on!
• Do not hold the extension tube while the unit is energized.
• Failure modes of the actuator should be considered to ensure it does not create harm.
4.4.2 Basic installation considerations
1. Only mount the actuator using the holes in the rear (a) and front (b) adapters. Check the model
number on the actuator product label (section 4.1) and then look at the ordering key (section 7.2)
to find out your adapter type configuration. See the below drawings and table to find out the exact
adapter dimensions.
2. Make sure that the actuator mounting position allows access to the cable connector cover plate (c), so
that it can be removed to allow access to the cable connector(s) (section 4.4.4).
3. The cable or cables (d) exit the cable slot at the rear of the actuator housing at delivery but can be
made to leave the housing at any point after the cable connector cover plate.
4. The hand wind input (e) must have enough free space around it to allow it to be operated
(section 4.4.5).
5. If external limit switches will be used, the mounting of the actuator must allow access to the limit
switch slots (f) running along the underside of the cover tube (section 4.4.6).
Installation
Adapter Dimensions [mm (in)]
Adapter type
M, S
E
N, T
F
P, R
G
Q
a1
12.2 E9 (0.48)
12.8 (0.506)
12.2 E9 (0.48)
12.8 (0.506)
-
-
-
a2
-
-
8.2 (0.323)
8.2 (0.323)
-
-
-
b1
10.9 (0.429)
10.9 (0.429)
12.9 (0.508)
12.9 (0.508)
30 (1.18)
30 (1.18)
42 (1.654)
b2
12.2 E9 (0.48)
12.8 (0.506)
12.2 E9 (0.48)
12.8 (0.506)
M12 × 1.75
1/2-20 NF-2B
M16 × 2
b3
-
-
8.2 (0.323)
8.2 (0.323)
19 (0.748)
19 (0.748)
19 (0.748)