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Timing (At Rated Torque and Voltage):
Drive Open:
ML4105, ML8105: 15 sec maximum, 14 sec typical.
ML4115: 25 sec maximum, 18 sec typical.
ML8115: 25 sec maximum, 22 sec typical.
Spring Close: 15 seconds.
Cycling Requirements:
Prolonged holding-period (1 year) testing of these actuators
has been performed with no spring return failures. The
actuator and the internal spring are designed to require no
special cycling during long-term holding.
Honeywell recommends following all local, state and national
codes for periodic testing of the entire smoke control
system. Refer to National Fire Protection Association (NFPA)
National Fire Codes®: NFPA90A, NFPA92A and NFPA92B
for your application.
NFPA recommends periodic examination of each fire/smoke
damper (semi-annually or annually) to ensure proper
performance.
Design Life (at Rated Voltage): 60,000 full stroke cycles.
Approvals: See Table 2.
Environmental Protection Ratings: See Table 3.
Accessories:
201391 Shaft Adapter for 3/8 in. shafts (not supplied with
actuator).
205649 Mounting Bracket (not supplied with actuator).
Table 2. Approvals.
ML4105
C1008,
A,B
D1007
UL/cUL
X
UL873 Plenum
X
X
Rating, File No.
E4436; Guide
No. XAPX.
CE
X
C-TICK
X
ML4105, ML4115, ML8105, ML8115 FAST-ACTING, TWO-POSITION ACTUATORS
ML4115C,D
C1016,
ML8105,
D1015
ML4115A,B
ML8115
X
X
X
X
X
X
X
X
X
X
Table 3. Environmental Ratings.
All Devices
NEMA1
2 (51)
1 (25)
4 (102)
5 1/8 (129)
Fig. 1. ML4105/ML4115/ML8105/ML8115
dimensional drawing in in. (mm).
3
ML4105C1016
ML4105C1008
ML4105D1015
ML4105D1007
ML4115C,D
IP40
IP54
5/8
(17)
1
6 3/8
(161)
7 1/2
(192)
2 (51)
3 5/16 (84)
7/8 (22)
1
ML4115/ML8115 HAVE SMALLER
HUB WITH TWO SET SCREWS.
ML4105/ML8105 HAVE LONGER
HUB WITH FOUR SET SCREWS.
1/16 (2)
M13053A
63-2540—9
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