KMC Controls

When it comes to building automation and reliable temperature control, KMC Controls has been a go-to name in the industry for over 50 years. Whether you're managing a single commercial facility or overseeing a portfolio of properties, KMC HVAC controls deliver the precision and dependability that today's HVAC professionals demand. At DM Supply Source, we carry over 1,000 KMC Controls products, and we stock them so you can get what you need without the waiting and the runaround.

Why Contractors and Facility Managers Choose KMC

KMC Controls got its start manufacturing pneumatic HVAC components back in 1969, and they've been evolving with the industry ever since. Today, their product catalog spans everything from legacy pneumatic devices to cutting-edge BACnet-enabled digital controllers and IoT-ready platforms. That kind of range matters when you're working on buildings of different ages and systems, and it's one of the reasons KMC automation controls remain a staple on job sites across the country.

Here's a quick look at the types of KMC products we keep in stock:

  • KMC Control Valves: Globe, ball, and butterfly valve assemblies built for hot water, chilled water, and steam applications. These are workhorses that hold up under constant cycling.

  • KMC HVAC Actuators: Electric and pneumatic actuators for damper and valve control. Whether you need a simple two-position unit or a fully modulating actuator with feedback, KMC has you covered.

  • KMC Temperature Sensors: Room, duct, and outdoor sensors designed for accurate readings across a wide range of environments. Proper sensing is the backbone of any well-run HVAC system.

  • KMC Thermostat Parts: Electronic room thermostats, setpoint covers, wall plates, and accessories. We stock the replacement components that keep your zone controls running right.

  • Controllers and Digital Systems: From standalone DDC controllers to BACnet-networked units and the KMC Commander platform, these systems bring modern building intelligence to facilities of all sizes.

Built in America, Backed by DM Supply Source

All KMC Controls products are manufactured in New Paris, Indiana, under an ISO 9001:2015 certified quality system, so you know every actuator, valve, and sensor leaving their facility has been tested and validated before it ever reaches your hands. As an authorized distributor, we stand behind every part we sell and can help you identify the right component for the job.

Need a specific KMC part number? Browse our full catalog of KMC automation controls and add items directly to your cart. If you're looking for something that isn't listed or need help with product selection, our team is ready. We handle every request with urgency because we know downtime isn't an option for your customers, or for you.

Hard-to-Find KMC Parts? We've Got You.

If there's one thing we're known for at DM Supply Source, it's tracking down the parts other distributors can't (or won't) find. Whether it's a discontinued KMC thermostat part, an oddball actuator, or a legacy pneumatic component, give us a call at 877-927-3677 or reach our emergency line at 570-793-6845. We'll get you a solution at a competitive price, every time!

 

400 of 1074 Items
  • MEP-455300

    KMC Controls

    MEP-455300

    160 in.-lb.; 2-POS; SR; 120V; PLNM; C221 :- The KMC MEP-455 Series direct-coupled, spring-return actuators are designed to control dampers and valves requiring fail-safe operation. The MEP-455 series actuators mount to 3/8"; to 1"; diameter shafts or...

    $375.53
    cartAdd to Cart
  • MEP-4552V

    KMC Controls

    MEP-4552V

    ACTUATOR; Proportional; 24VAC/VDC; Fail Safe; 45 in-lb; QuickMount :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $167.44
    cartAdd to Cart
  • MEP-4552

    KMC Controls

    MEP-4552

    ACTUATOR; Proportional; 24VAC/VDC; Fail Safe; 45 in-lb :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable, capacitor-driven...

    $173.07
    cartAdd to Cart
  • MEP-4551V

    KMC Controls

    MEP-4551V

    ACTUATOR; Tri-State / 2-Pos; 24VAC/VDC; Fail Safe; 45 in-lb; Quick Mount :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $152.27
    cartAdd to Cart
  • MEP-455100

    KMC Controls

    MEP-455100

    160 in.-lb; 2-POS; SR; 24V; 121 :- The KMC MEP-455 Series direct-coupled, spring-return actuators are designed to control dampers and valves requiring fail-safe operation. The MEP-455 series actuators mount to 3/8"; to 1"; diameter shafts or 1/4"; to...

    $340.56
    cartAdd to Cart
  • MEP-4551

    KMC Controls

    MEP-4551

    ACTUATOR; Tri-State / 2-Pos; 24VAC/VDC; Fail Safe; 45 in-lb :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $157.93
    cartAdd to Cart
  • MEP-4901

    KMC Controls

    MEP-4901

    ACTUATOR; Tri-State / 2 Pos., 24VAC/VDC, Non-Failsafe, 90 in-lb, 45 sec. / 90 deg. :- These compact but powerful direct-coupled ControlSet? actuators provide fast and accurate tri-state floating or two-position control for dampers or valves in HVAC...

    $140.79
    cartAdd to Cart
  • HVAC Actuator for Damper and Valve Control

    KMC Controls

    MEP-4501

    The KMC MEP-4501 HVAC actuator is engineered to deliver exceptional performance in HVAC systems, providing reliable tri-state or two-position control for dampers and valves. Its compact design is complemented by a powerful torque of 45 in-lbs, ensuring...

    $120.15
    cartAdd to Cart
  • MEP-4275

    KMC Controls

    MEP-4275

    ACTUATOR; 2-Position; 100-240VAC; Fail Safe; 25 in-lb; 1 Aux-Sw. :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $226.68
    cartAdd to Cart
  • VEB-5616FSFK

    KMC Controls

    VEB-5616FSFK

    Valve: 4" 3W Flanged, 327 CV, Proportional, Non-Failsafe :- The KMC VEB-56 series ball control valves are three-way, mixing or diverting, flanged valves, designed for control of hot water or chilled water. These valves range in size from 4 to 6 inches...

    $1,703.43
    cartAdd to Cart
  • MEP-4274

    KMC Controls

    MEP-4274

    ACTUATOR; 2-Position; 24VAC/VDC; Fail Safe; 25 in-lb; 1 Aux-Sw. :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $211.36
    cartAdd to Cart
  • MEP-4272 Actuator

    KMC Controls

    MEP-4272

    Product Description: Choose the MEP-4272 Actuator for reliable performance in critical HVAC applications. Its robust design, advanced features, and easy installation options make it an essential part of your climate control system.   Features:...

    $234.53
    cartAdd to Cart
  • MEP-425602

    KMC Controls

    MEP-425602

    62"LB;0-10;SR;SW;PLNM;M166 :- KMC MEP-425 series direct-coupled, spring-return actuators are designed to control small- and medium-sized dampers requiring fail-safe operation. The MEP-425 Series actuators mount to 1/4"; to 3/4"; diameter shafts or 1/4";...

    $350.32
    cartAdd to Cart
  • MEP-425600

    KMC Controls

    MEP-425600

    62"LB;0-10;SR;PLNM;M161 :- KMC MEP-425 series direct-coupled, spring-return actuators are designed to control small- and medium-sized dampers requiring fail-safe operation. The MEP-425 Series actuators mount to 1/4"; to 3/4"; diameter shafts or 1/4"; to...

    $329.59
    cartAdd to Cart
  • BAC-4022CW0001

    KMC Controls

    BAC-4022CW0001

    AppStat: FCU, 3-Speed Fan, Mod Valves, Dehum :- The KMC AppStat combines the power of a space-mounted equipment controller with the convenience of built-in temperature, humidity and motion sensors. The controllers include a wide range of factory supplied...

    $503.45
    cartAdd to Cart
  • MEP-4255V

    KMC Controls

    MEP-4255V

    ACTUATOR; 2-Position; 100-240VAC; Fail Safe; 25 in-lb; QuickMount :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $182.51
    cartAdd to Cart
  • MEP-425502

    KMC Controls

    MEP-425502

    62"LB;TRISTATE;SR;SW;PLNM;M136 :- KMC MEP-425 series direct-coupled, spring-return actuators are designed to control small- and medium-sized dampers requiring fail-safe operation. The MEP-425 Series actuators mount to 1/4"; to 3/4"; diameter shafts or...

    $272.86
    cartAdd to Cart
  • MEP-4255

    KMC Controls

    MEP-4255

    ACTUATOR; 2-Position; 100-240VAC; Fail Safe; 25 in-lb :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable, capacitor-driven...

    $190.51
    cartAdd to Cart
  • MEP-4254V

    KMC Controls

    MEP-4254V

    ACTUATOR; 2-Position; 24VAC/VDC; Fail Safe; 25 in-lb; QuickMount :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $150.53
    cartAdd to Cart
  • MEP-4254

    KMC Controls

    MEP-4254

    ACTUATOR; 2-Position; 24VAC/VDC; Fail Safe; 25 in-lb :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable, capacitor-driven...

    $148.96
    cartAdd to Cart
  • CME-7002

    KMC Controls

    CME-7002

    Accessory: Aux Switch, Dual SPDT :- These CME-7001 and CME-7002 Auxiliary Switches are designed to start and stop auxiliary items (such as electric heat or fans) or to indicate an actuator's fully open or closed position. Models are available with single...

  • MEP-425300

    KMC Controls

    MEP-425300

    62"LB;2-POS;SR;120V;PLNM;M221 :- KMC MEP-425 series direct-coupled, spring-return actuators are designed to control small- and medium-sized dampers requiring fail-safe operation. The MEP-425 Series actuators mount to 1/4"; to 3/4"; diameter shafts or...

    $271.44
    cartAdd to Cart
  • MEP-4554V

    KMC Controls

    MEP-4554V

    ACTUATOR; 2-Position; 24VAC/VDC; Fail Safe; 45 in-lb; QuickMount :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $150.60
    cartAdd to Cart
  • MEP-4252V

    KMC Controls

    MEP-4252V

    ACTUATOR; Proportional; 24VAC/VDC; Fail Safe; 25 in-lb; QuickMount :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $167.53
    cartAdd to Cart
  • MEP-4252

    KMC Controls

    MEP-4252

    ACTUATOR; Proportional; 24VAC/VDC; Fail Safe; 25 in-lb :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable, capacitor-driven...

    $165.78
    cartAdd to Cart
  • MEP-4251V

    KMC Controls

    MEP-4251V

    ACTUATOR; Tri-State / 2-Pos; 24VAC/VDC; Fail Safe; 25 in-lb; Quick Mount :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $152.19
    cartAdd to Cart
  • MEP-425100

    KMC Controls

    MEP-425100

    62"LB;2-POS;SR;24V;PLNM;M121 :- KMC MEP-425 series direct-coupled, spring-return actuators are designed to control small- and medium-sized dampers requiring fail-safe operation. The MEP-425 Series actuators mount to 1/4"; to 3/4"; diameter shafts or...

    $235.21
    cartAdd to Cart
  • MEP-4251

    KMC Controls

    MEP-4251

    ACTUATOR; Tri-State / 2-Pos; 24VAC/VDC; Fail Safe; 25 in-lb :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $150.65
    cartAdd to Cart
  • BAC-4021CW0003

    KMC Controls

    BAC-4021CW0003

    AppStat: HPU, 3H/2C, Dehum :- The KMC AppStat combines the power of a space-mounted equipment controller with the convenience of built-in temperature, humidity and motion sensors. The controllers include a wide range of factory supplied programs for the...

    $503.45
    cartAdd to Cart
  • MEP-4974

    KMC Controls

    MEP-4974

    ACTUATOR; 2-Position; 24VAC/VDC; Failsafe; 90 in-lb; 2 Aux-Sw :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $246.85
    cartAdd to Cart
  • MEP-4975

    KMC Controls

    MEP-4975

    ACTUATOR; 2-Position; 100-240VAC; Failsafe; 90 in-lb; 2 Aux-Sw :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable,...

    $262.13
    cartAdd to Cart
  • CME-7001

    KMC Controls

    CME-7001

    Accessory: Aux Switch, Single SPDT :- These CME-7001 and CME-7002 Auxiliary Switches are designed to start and stop auxiliary items (such as electric heat or fans) or to indicate an actuator's fully open or closed position. Models are available with...

  • MEP-4554

    KMC Controls

    MEP-4554

    ACTUATOR; 2-Position; 24VAC/VDC; Fail Safe; 45 in-lb :- These compact but powerful direct-coupled ControlSet actuators provide two-position, tri-state, or proportional control for dampers or valves in HVAC systems. Efficient, durable, capacitor-driven...

    $156.28
    cartAdd to Cart
  • MEP-4201

    KMC Controls

    MEP-4201

    ACTUATOR; Tri-State / 2 Pos., 24VAC/VDC; Non-Failsafe, 25 in-lb, 35 sec / 90deg. :- These compact but powerful direct-coupled ControlSet? actuators provide fast and accurate tri-state floating or two-position control for dampers or valves in HVAC systems...

    $121.02
    cartAdd to Cart
  • MEP-4822

    KMC Controls

    MEP-4822

    Actuator: Proportional, Non-Failsafe, 24VAC, 80 in-lbs, Aux Switch :- These compact but powerful direct-coupled actuators provide tri-state or proportional control for small dampers or valves in HVAC systems. A minimum torque of 40 (MEP-40xx) or 80...

    $153.12
    cartAdd to Cart
  • MEP-5223

    KMC Controls

    MEP-5223

    Actuator: Tri-State, Non-Failsafe, 24VAC, 10 in-lbs, 45 deg, 3 Deg/sec :- The MEP-5223 and MEP-5233 are replacement damper actuators designed for residential dampers. The 24 VAC, tri-state, 10 in-lb., direct-coupled actuator provides smooth and quiet...

    $184.26
    cartAdd to Cart
  • MEP-4101

    KMC Controls

    MEP-4101

    Actuator: Tri-State, Non-Failsafe, 24VAC, 10 in-lbs, 3 Deg/sec :- This compact, tri-state, direct-coupled actuator controls small dampers in HVAC systems that require relatively high rotation speed and low torque. Used with floating thermostats,...

    $101.27
    cartAdd to Cart
  • MEP-4022

    KMC Controls

    MEP-4022

    Actuator: Proportional, Non-Failsafe, 24VAC, 40 in-lbs, Aux Switch :- These compact but powerful direct-coupled actuators provide tri-state or proportional control for small dampers or valves in HVAC systems. A minimum torque of 40 (MEP-40xx) or 80...

    $144.45
    cartAdd to Cart
  • MEP-4021

    KMC Controls

    MEP-4021

    Actuator: Tri-State, Non-Failsafe, 24VAC, 40 in-lbs, Aux Switch :- These compact but powerful direct-coupled actuators provide tri-state or proportional control for small dampers or valves in HVAC systems. A minimum torque of 40 (MEP-40xx) or 80...

    $116.38
    cartAdd to Cart
  • MEP-4013

    KMC Controls

    MEP-4013

    Actuator: Tri-State, Non-Failsafe, 24VAC, 40 in-lbs, Feedback Pot :- These compact but powerful direct-coupled actuators provide tri-state or proportional control for small dampers or valves in HVAC systems. A minimum torque of 40 (MEP-40xx) or 80...

    $109.07
    cartAdd to Cart
400 of 1074 Items