Product Overview

Models
Model
Number
MEP-
Torque Control Built-in Options
40 in-lb. min.
(4.5 N•m)
80 in-lb. min.
(9 N•m)
Tri-state (Floating) or
(3-wire) 2-Position
0 to 10 or 2 to 10
VDC Proportional
Feedback: 10k ohm
Potentiometer
Feedback: 0/1–5 or
0/2–10 VDC
Auxiliary Switch
(Adjustable, SPDT)
4001(V)*
4
4
4002(V)*
4 4
4003(V)**
4
4013
4
4021
4
4022
4 4
4801
4
4
4802
4 4
4813
4
4
4821
4
4822
4 4
*MEP-4001V/4002V/4003V have the quick-mount option.
**MEP-4003/4003V do not have two-position functionality or
the larger green top enclosure.
Specifications
Supply Voltage 24 VAC (+20%/–15%), Class 2
only
Supply Power Tri-state/two-position, 2 VA;
proportional, 4 VA
Control Signal Tri-state/two-position, 24 VAC;
proportional, 0/2 to 10 VDC
Frequency 50/60 Hz
Feedback Output
Tri-state/2-Position 10K ohm ±10% (on select models)
Proportional 0/1 to 5 VDC or 0/2 to 10 VDC
(switch selectable)
Auxiliary Switch Adjustable 0 to 95°, SPDT 6 A
resistive load (3 A motor load) @
24 VAC (on select models)
Angular Rotation 0 to 95°, fully adjustable with
mechanical stop
Motor Timing 90 seconds for 90° @ 60 Hz;
108 seconds for 90° @ 50 Hz
Torque (MEP-40xx) 40 in-lb. (4.5 N•m);
(MEP-48xx) 80 in-lb. (9 N•m)
Mounting Direct to 1/4 to 5/8 inches (6–16
mm) round or 1/4 to 7/16 inches
(6–11 mm) square shaft by adjust-
able “V” bolt and non-rotational
bracket HMO-4002 (supplied);
minimum recommended damper
shaft length is 1-5/8 inches; HPO-
5074 required for mounting “V”
actuators to valves
Connections Wire clamp type; 14 to 22 AWG,
copper
Dimensions
MEP-4003 5.3 x 2.6 x 1.8" (135 x 66 x 46 mm)
MEP-4003V 5.3 (w/o handle extended) x 2.6 x
2.59 inches (135 x 66 x 66 mm)
MEP-4001V/4002V 5.3 (w/o handle extended) x 2.6 x
3.28 inches (135 x 66 x 83.2 mm)
All others 5.3 x 2.6 x 2.5 inches
(135 x 66 x 63.5 mm)
Weight 1.1 lb. (0.50 kg) or less
Enclosure Flame-retardant plastic
Noise Level < 35 dBA max. at 1 meter
Approvals UL 873 Temperature Indicating
and Regulating Equipment; FCC
Class B, Part 15, Subpart B; Com-
plies with Canadian ICES-003; CE
compliant
Environmental Limits
Operating –22 to 131° F (–30 to 55° C)
Shipping –40 to 176° F (–40 to 80° C)
Humidity 5 to 95% RH (non-condensing)
NOTE: Before Jan. 2014, MEP-40x2/48x2
proportional models had 0–10 VDC inputs
and 0–5 or 0–10 VDC feedback. From 2014
through July 2015, they had 2–10 VDC
inputs and 1–5 or 2–10 VDC feedback
instead. Starting in August 2015, all these
options were available and selectable via a
jumper and slide switch.
NOTE: When the 0–10 VDC input is selected (with
the jumper), selectable (with a switch)
feedback options are 0–5 or 0–10 VDC.
When the 2–10 VDC input is selected,
feedback options are 1–5 or 2–10 VDC.
NOTE: When replacing a KMC MEP-5xxx actuator
with an MEP-4xxx actuator:
• If on a damper, use a non-V model of
the MEP-4xxx.
• If on a ball valve, two options for
replacement are: (1) the MEP-4xxxV
with an HPO-5074 kit OR (2) the MEP-
4xxx (non-V models) with an HMO-4004
kit.