MS4104, MS4109, MS4604, MS4609, MS8104, MS8109 FAST-ACTING, TWO-POSITION ACTUATORS
3 63-2740—02
Timing (At Rated Torque and Voltage):
Drive Open: 15 seconds typical.
Spring Close: 15 seconds typical.
Cycling Requirements:
Prolonged holding-period (1 year) testing of these actuators
has been performed with no spring return failures. The actu-
ator and the internal spring are designed to require no spe-
cial cycling during long-term holding.
Honeywell recommends following all local, state and national
codes for periodic testing of the entire smoke control sys-
tem. 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 perfor-
mance.
Design Life (at Rated Voltage): 30,000 full stroke cycles.
Approvals: See Table 3.
Environmental Protection Ratings: See Table 4.
Accessories:
205649 Mounting Bracket (not supplied with actuator).
Table 3. Approvals.
Table 4. Environmental Ratings.
Fig. 1. MS4104, MS4109, MS4604, MS4609, MS8104 and
MS8109 dimensional drawing in in. (mm).
MS4104F, MS4109F,
MS4604F, MS4609F
MS8104F,
MS8109F
UL/cUL X X
UL873 X X
CE X X
C-Tick X X
All Devices
MS4104, MS4109, MS4604,
MS4609, MS8104 and
MS8109
NEMA1 IP40
M34622
2 (51)
1 (25)
90
°
0
°
11/16
(17)
6-3/8
(161)
8-15/16
(227)
4 (102)
2 (51)
1/16
(2)
3-1/4 (83)
5-1/8 (130)
9/16 (14)