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SCHNEIDER Pneumatic Damper Actuator: MK4-3121 Mfr Part # - Replacement HVACR Pumps, Valves & Tubing
SCHNEIDERReplacement HVACR Pumps, Valves & Tubing

SCHNEIDER Pneumatic Damper Actuator: MK4-3121 Mfr Part #

SCHNEIDER Replacement HVACR Pumps, Valves & Tubing. Specifications: Product Type: Actuator.

SKU 3G-OTH-85298

Also listed as: MK43121 · MK4 3121

Brand
SCHNEIDER
Item
Pneumatic Damper Actuator: MK4-3121 Mfr Part #
Category
Replacement HVACR Pumps, Valves & Tubing
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

SCHNEIDER
Manufacturer Part Number
MK4-3121
Product Type
Actuator

Technical Documents

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SCHNEIDER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

SCHNEIDER Replacement HVACR Pumps, Valves & Tubing. Specifications: Product Type: Actuator.

Frequently Asked Questions

What is the SCHNEIDER MK4-3121 pneumatic damper actuator used for?

The SCHNEIDER MK4-3121 pneumatic damper actuator is used in HVAC systems to control air dampers in commercial and industrial buildings. It modulates airflow in ventilation, heating, and cooling ducts, ensuring precise temperature and pressure regulation. This actuator is suitable for retrofit or new installations in building automation.

What are the specifications of the SCHNEIDER MK4-3121 actuator?

The SCHNEIDER MK4-3121 is a pneumatic damper actuator with manufacturer part number MK4-3121. It is designed for HVACR applications, operating on pneumatic control signals to position dampers. For detailed technical data such as torque, stroke, or pressure range, consult the product datasheet or contact 3G Electric.

Where to buy the SCHNEIDER MK4-3121 actuator worldwide?

You can source the SCHNEIDER MK4-3121 pneumatic damper actuator through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact our team for a quote and lead time; we supply genuine SCHNEIDER components for HVACR systems.

How to install the SCHNEIDER MK4-3121 pneumatic damper actuator?

Install the SCHNEIDER MK4-3121 actuator by mounting it securely to the damper shaft, ensuring proper alignment. Connect the pneumatic tubing to the control signal port per the system's pressure requirements. Verify the actuator stroke matches the damper rotation. Always follow generic HVAC actuator installation best practices and consult the manufacturer's manual.

Used in

Common applications for SCHNEIDER
Motor starting in conveyor systems — Schneider Altistart ATS 22 soft starters (e.g., ATS22D17S6U) reduce inrush current.
Speed control for industrial pumps — Schneider Altivar ATV320 VFDs (e.g., ATV320U55N4W) provide variable flow regulation.
Machine safety interlocking — Schneider XPSUAF13AP safety relays monitor emergency stop circuits on assembly lines.
Panel-mounted control stations — Schneider XB5 flush push buttons (ZB5AA5) serve as start/stop operators in MCCs.
Heavy-duty motor switching — Schneider LC1G150LSEA contactors handle 150 A loads in compressor and crusher applications.
Emergency stop actuation — Schneider 9001K mushroom-head push buttons (9001KR25R) provide red, momentary stop functions.

SCHNEIDER Products

3G Electric supplies SCHNEIDER replacement hvacr pumps, valves & tubing. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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