Product Overview

ManualsBrandsKMC Controls ManualsDampersDirect-Coupled ControlSet Actuator, 2-10 VDC (40 in-lb)

Table Of Contents

Description and Application

These compact but powerful, direct-coupled (non-

fail-safe) ControlSet

actuators provide tri-state/two-

position or proportional control for small dampers

or valves in HVAC systems. A minimum torque of

40 (MEP-40xx) or 80 (MEP-48xx) in-lb. is available

over the 95° angular rotation.

MEP-4xx2 proportional models accept a 2–10 VDC

control signal input from a thermostat or controller.

“Anti-jier” circuitry signicantly reduces hunt-

ing and needless wear (from unnecessary miniscule

position changes caused by undamped analog input

signals) on the actuator and valve packing or damp-

er components. A user-initiated, auto-mapping

feature provides more precise equipment control by

reassigning the 2–10 VDC input signal range over a

reduced rotation range (from 45° to 95°). These mod-

els also feature a switch-selectable, 1–5 or 2–10 VDC

voltage feedback output that is proportional to the

actuator position.

MEP-4xx1/4xx3 tri-state/two-position (three-wire)

models are designed for use with oating thermo-

stats, controllers, or building automation systems.

The MEP-4x13 models feature a 10K ohm (± 10%),

three-wire potentiometer feedback output. (The

tri-state MEP-4003/4003V do not have two-position

functionality or the larger green top enclosure.)

MEP-4x21/4x22 models also have a fully adjustable,

built-in SPDT auxiliary switch, for remote position

indication or controller and equipment interface.

MEP-4001V/4002V/4003V actuators have brackets

with a patent-pending, quick-mounting mechanism.

See (Quick-Mounting) “V” Models Valve Cross-Ref-

erence on page 4 for more information.

All other actuators mount directly to 1/4- to 5/8-

inch (6 to 16 mm) round shafts or 1/4- to 7/16-inch

(6 to 11 mm) square shafts, eliminating the need for

expensive and complicated linkages. A non-rotation

bracket, to prevent lateral movement, is included

with each actuator. A gear disengagement buon

allows manual positioning of the actuator.

NOTE: For similar actuators with fail-safe, see the

MEP-4200/4500/4900 Series Data Sheet.

Speciﬁcations and design subject to change without notice.

Description and Application 1

Features 1

Models 2

Accessories and More Information 2

Speciﬁcations 2

Details 3

(Quick-Mounting) “V” Models Valve Cross-Reference 4

Features

◆ MEP-4xx2 proportional models include “anti-

jier” circuitry, optional auto-mapping of the full

input signal range over a reduced actuator stroke,

and switch-selectable voltage feedback

◆ MEP-4xx1/4xx3 tri-state/two-position (three-wire)

models available (tri-state only on MEP-4003)

◆ Fully adjustable, built-in auxiliary switch on

selected models

◆ Removable terminals and removable 1/2-inch

NPS conduit ing (except the MEP-4003)

◆ Direct mounting to standard shaft sizes

◆ Gear disengagement buon and adjustable me-

chanical end stop

◆ Quick-mounting valve body option on MEP-

4001V/4002V/4003V

MEP-4000/4800 Series

Direct-Coupled, NFS, ControlSet

Actuators (40/80 in-lb.)

MEP-4002

(Size Shown

Relative to a

Quarter)

MEP-4003V with Quick Mount

MEP-4003

(Only)

Summary of content (4 pages)

PAGE 1
MEP-4000/4800 Series Direct-Coupled, NFS, ControlSet® Actuators (40/80 in-lb.) Description and Application These compact but powerful, direct-coupled (nonfail-safe) ControlSet® actuators provide tri-state/twoposition or proportional control for small dampers or valves in HVAC systems. A minimum torque of 40 (MEP-40xx) or 80 (MEP-48xx) in-lb. is available over the 95° angular rotation. MEP-4xx2 proportional models accept a 2–10 VDC control signal input from a thermostat or controller.
PAGE 2
Specifications Models 4001(V)* 4013 Auxiliary Switch (Adjustable, SPDT) Feedback: 1–5 or 2–10 VDC Feedback: 10k ohm Potentiometer Built-in Options 4 4 4 4 4 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, 2 to 10 VDC Frequency 50/60 Hz Feedback Output Auxiliary Switch 4 4021 4022 Supply Voltage Tri-state/2-Position Proportional 4 4002(V)* 4003(V)** 2 to 10 VDC Proportional
PAGE 3
Details All dimensions are in inches (mm) 1.568 [40] MEP-4002/4022/4802/4822 ONLY (UNDER COVER) • 1–5 or 2–10 VDC FEEDBACK SELECTOR SWITCH (SHIPPED AT 1–5 VDC POSITION) • PROPORTIONAL DIRECTION/AUTO MAPPING SWITCH (SHIPPED AT CW POSITION) MEP-4003 ONLY 2.5 [63.5] REMOVABLE TERMINALS (UNDER COVER) 5.3 REMOVABLE CONDUIT [135] FITTING WITH 1/2" NPS THREADED HOLE 2.6 [66] AUXILIARY SWITCH DIAL MEP-4021/4022/4821/4822 ONLY ADJUSTABLE STOP 3.437 [87.3] MEP-4003 ONLY GEAR DISENGAGEMENT LEVER 1.
PAGE 4
(Quick-Mounting) “V” Models Valve Cross-Reference MEP-4xxxV actuators have brackets with a patentpending, quick-mounting mechanism that mounts directly on VFB-43...BC and VFB-46...BC series valve bodies. See the HPO-5074 installation guide and the VEB-43 and VEB-46 series data sheets for additional information. NOTE: “V” actuators were installed in VEB-43... CF, VEB-43...CK, VEB-46...CF, and VEB-46... CK valves starting in mid-June 2011 (date codes 11166 and later).