Kele KA-70-P 70 in-lb Non-Spring Proportional Damper/Valve Actuator 24VAC

Condition: Used; shows normal cosmetic wear. Functionality not otherwise indicated; actuator body/terminals appear intact.

This Kele KA-70-P is a non-spring return, direct-coupled proportional actuator designed to position HVAC dampers and valves smoothly between open and closed based on a control signal. The KA-70-P accepts either 2–10 VDC or 4–20 mA (proportional) and drives a 45° / 60° / 90° selectable stroke at a steady, gear-driven rate—ideal for VAV/zone dampers, economizer dampers, and modulating valves that need stable, repeatable positioning. According to the installation instructions, it mounts directly to 3/8″–1/2″ round or square shafts and is intended for long-cycle building automation duty.

Specifications

• Model: KA-70-P (Non-spring return DCA, proportional)

• Torque rating: 70 in-lb (8 N·m) running (rated voltage)

• Power input: 24 VAC ±20%, 50/60 Hz

• Power consumption: 5.4 VA (KA-70-P)

• Timing (90° stroke): 90 sec @ 60 Hz / 108 sec @ 50 Hz

• Stroke (selectable): 45° / 60° / 90°

• Rotation: CW and CCW (rotation reversal via slide switch on actuator; proportional direction can also be “direct/reverse” per setup)

• Mounting: Direct-coupled to 3/8″–1/2″ (10–13 mm) round or square shaft

• Minimum shaft length required: 1-3/4″ (45 mm)

• Device weight: ~1.3 lb (0.58 kg) (typical for series)

• Noise: ≤45 dBA @ 1 m

• Environmental rating: NEMA 1 (manual lists environmental protection as NEMA 1; use an external enclosure if the job requires NEMA 4/4X)

• Operating ambient: 20°F to 125°F (-18°C to 50°C); humidity 5–95% RH non-condensing

• Approvals (series): UL Recognized Component; CSA Certified (per instructions)

Markings and Code Notes

• Date code “0243” (on label): commonly interpreted as a YYWW (year/week) style manufacturing code (example: 2002, week 43), but formats vary by production run—treat as informational only unless confirmed by Kele documentation for this exact label revision.

• Label highlights: “70 in-lb, Proportional,” “24 VAC 50/60 Hz,” stroke options 45/60/90, time 90 sec, approx 0.215 A / 5.0 W shown on the unit label (your pictured label values).

Features

• Non-spring return (holds last position on power loss; no spring-driven fail-safe)

• Proportional control inputs: 2–10 VDC and 4–20 mA

• Direct-coupled mounting to damper/valve shafts (no linkage required in many installs)

• Selectable stroke: 45°, 60°, or 90° (range stop pin used for 45°/60°)

• CW/CCW rotation capability (reversal via slide switch; ensure it’s fully engaged to one side)

• Manual declutch lever for positioning during setup/service (support the load when declutching)

• Long-cycle HVAC duty design (high reposition count and cycle rating per series documentation)

• Optional auxiliary switch capability (field-addable accessory, where used for end-switch or interlocks)

Applications

• VAV and zone dampers (modulating supply/return/exhaust dampers)

• Economizer dampers and mixed-air control

• Hydronic valve actuation (with appropriate valve shaft/linkage hardware)

• Air handling units (AHUs): outside air, return air, bypass/relief dampers

• Building automation retrofits where a 24VAC proportional DCA is required

Spheres of Application

• Commercial HVAC (office buildings, retail, schools, light industrial)

• BAS/DDC-controlled systems (BACnet/Modbus controllers outputting 2–10V or using 4–20mA)

• Mechanical contractors (replacement/upgrade of legacy direct-coupled actuators)

Cross-Referenced Models

(Same family / closely related variants; verify torque, control type, and enclosure needs.)

• Kele KA-70-P (this unit; proportional 2–10 VDC / 4–20 mA)

• Kele KA-35-P (35 in-lb proportional)

• Kele KA-70-2T (70 in-lb tri-state/floating control variant)

• Kele KA-35-VAV (35 in-lb tri-state VAV variant)

Comparable Products

(Comparable function class—non-spring, proportional, 24VAC, direct-coupled; confirm torque, stroke, wiring, and signal requirements.)

• Belimo non-spring proportional actuators in the 70 in-lb class (e.g., “NM” family equivalents)

• Honeywell/Resideo non-spring proportional DCA equivalents (ML series class)

• Johnson Controls non-spring proportional direct-coupled actuators (M9xx class equivalents)

• Siemens non-spring proportional actuators (OpenAir class equivalents)

Use in Larger Systems

This actuator is commonly one component in a BAS-controlled airside/hydronic package:

• Controller output (2–10V or 4–20mA) → KA-70-P → Damper shaft / valve linkage

• Often paired with:

  • VAV box damper assemblies

  • AHU mixed-air sections (OA/RA/relief dampers)

  • Hydronic valve bodies via crank arm/linkage kits

  • Optional auxiliary switch for fan enable, reheat interlock, or proof signaling (application-specific)

Related

direct-coupled actuator, 70 inch-pound damper actuator, proportional HVAC actuator, 2-10V damper motor, 4-20mA valve actuator, non-spring return actuator, economizer damper actuator, VAV damper actuator, building automation damper control, device to position air dampers, modulating actuator 24VAC

Common Requests:

1. “Kele KA-70-P actuator 70 in-lb 24VAC 2-10V wiring diagram”

2. “Replacement for KA-70-P proportional direct coupled damper actuator”

3. “How to set 45/60/90 stroke on KA-70-P and install stop pin”

4. “KA-70-P rotation reversal switch location and direct/reverse control behavior”

5. “KA-70-P mounting on 3/8 inch shaft with adapter and anti-rotation strap”

Trademarks Disclaimer

Kele and any other manufacturer names referenced are trademarks of their respective owners. All names are used only for identification and compatibility/comparison purposes; no affiliation or endorsement is implied.

P125; B006; GT00101