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J20741 - Subject to change. © Belimo Aircontrols (USA), Inc.
LF
LF120 (-S) US / LF230 (-S) US
On-off, Spring Return Fail-Safe, 120/230 VAC
Accessories
AV 10-18
Shaft extension (K6-1 is required)
IND-LF
Damper position indicator
K6-1
Universal clamp for up to 3/4” diameter shafts
KH-LF
Crankarm for up to 1/2” round shaft
Tool-06
8mm and 10 mm wrench
ZG-LF2
Crankarm adaptor kit for LF
ZG-112
Mounting bracket for Honeywell Mod IV, M6415
type actuators, and new installations
ZG-LF112 Crankarm adaptor kit for Honeywell Mod IV,
M6415 type actuators, and new installations
ZS-100
Weather shield (metal)
ZS-150
Weather shield (polycarbonate)
ZS-260
Explosion-proof housing
Note: When using LF120/230 US and LF120-S/230-S US
actuators, only use accessories listed on this page.
For Actuator Wiring Information and Diagrams,
Please See Belimo Wiring Guide (pg 349).
LF120 (-S) US / LF230 (-S) US Typical Specification
On-off spring return damper actuators shall be direct coupled
type which require no crankarm and linkage and be capable of
direct mounting to a shaft up to a 3/4” diameter and center a
1/2” shaft. The actuators must be designed so that they may be
used for either clockwise or counterclockwise fail-safe opera-
tion. Actuators shall be protected from overload at all angles
of rotation. If required, 1 SPDT auxiliary switch shall be provid-
ed having the capability of being adjustable. Actuators must be
constructed to meet the requirements for Double Insulation so
an electrical ground is not required to meet agency listings.
Actuators shall be UL listed and CSA certified, have a 5 year
warranty, and be manufactured under ISO 9001 International
Quality Control Standards. Actuators shall be as manufac-
tured by Belimo.
Wiring Diagrams
2
1
Provide overload protection and disconnect as required.
Actuators may be connected in parallel. Power con-
sumption must be observed.
No ground connection is required.
2
3
1
3
Provide overload protection and disconnect as required.
Actuators may be connected in parallel. Power con-
sumption must be observed.
No ground connection is required.
For end position indication, interlock control, fan start-
up, etc., LF120-S US and LF230-S US incorporate
one built-in auxiliary switch: 1 x SPDT, 3A (0.5A)
@250 VAC, UL listed, adjustable 0° to 95°.
Meets UL and CSA requirements without the need of an
electrical ground connection.
®
4
5
On-off wiring for LF120 US / LF230 US
On-off wiring for LF120-S US / LF230-S US
1 Neutral
2 Hot
1
2
120 VAC
230 VAC
LF120 US
LF230 US
3
L1 N
L2 H
1 Neutral
2 Hot
2
3
4
5
5
S1
S2
S3
NC
NO
0
°
to 95
°
LF120-S US
LF230-S US
1
120 VAC
230 VAC
L1 N
L2 H
W049
W050
