esco KM50II Chain Actuators

KM50II Chain Actuators

Power and precision in one solution

The KM50II series is a professional range of chain actuators with a closing force of up to 600 N, designed for large and heavy side-hung, top-hung, bottom-hung and outward-opening windows. Thanks to their robust construction, programmable settings and flexible mounting options, they are perfect for natural ventilation, smoke extraction and building automation systems.

Versions

🔹 KM50II Solo – single actuator, 500 N (up to 600 N closing force)

🔹 KM50II VH – Solo version with additional locking device for improved sealing

🔹 KM50II TD – Tandem (double actuator) for large glazed areas and heavy sashes

🔹 KM50II TD VH – Tandem with locking device for maximum safety and tightness

Key Features

✅ High force output – up to 600 N (Tandem up to 2×600 N)

✅ Programmable stroke and speed – adjustable opening range and dynamics

✅ Stainless steel chain – durable and resistant to intensive use

✅ Surface-mounted or concealed installation – adaptable to any project

✅ Automatic limit switches – safe stop at end positions

✅ Individual and group control – integration with ventilation and BMS systems

✅ Optional higher protection class (IP54) – for demanding environments

Technical Data

Parameter          KM50II Solo        KM50II TD

Power supply     230 V AC ±10% 50 Hz     230 V AC ±10% 50 Hz

Rated current     0.25 A   0.5 A

Power consumption        58 W     116 W

Closing force      max. 600 N         max. 2×600 N

Opening speed  ≤ 15 mm/s          ≤ 15 mm/s

Protection class IP20 (optional IP54)        IP20 (optional IP54)

Duty cycle          ED/on 150 s / ED/off 450 s          ED/on 150 s / ED/off 450 s

Stroke lengths    300 / 500 / 700 mm        300 / 500 / 700 mm

Actuator length 480 mm (300 mm stroke), 595 mm (500 mm), 696 mm (700 mm)             same as Solo

Cable     silicone, halogen-free, 4×0.5 mm², length 2 m    2 m + 2 m communication cable (TD) / +1.5 m locking cable (VH)

Applications

Side-hung windows (R)

Top-hung windows (U(G))

Bottom-hung windows (U(D))

Outward-opening windows on scissor hinges (W)

Skylights and large roof openings

Available finishes

EV1 (anodized aluminium)

RAL9016 (white)

Mounting & Accessories

Mounting kits available for:

Frame inward (RW)

Sash inward (SW)

Frame outward (RZ)

Concealed installation (also for roof windows)

Product Highlights

KM50II Solo

Single chain actuator with up to 600 N force, designed for automating large windows and skylights. Combines power with precision through programmable stroke and speed.

KM50II VH

Solo actuator with locking unit, providing maximum sealing and safety. Ideal for applications where tightness, insulation and protection against external conditions are critical.

KM50II TD

Tandem solution – dual actuators for the largest and heaviest sashes. With synchronized operation and a total force of 2×600 N, it guarantees reliable performance in demanding projects.

KM50II TD VH

The most powerful version in the range – Tandem with locking unit. Provides maximum strength, safety and sealing for large façades, skylights and smoke extraction systems.

KM50II Version Comparison

Version  Description         Force     Stroke lengths    Additional features

KM50II Solo        Single chain actuator      up to 600 N        300 / 500 / 700 mm               Programmable stroke and speed

KM50II VH          Solo with locking unit     up to 600 N        300 / 500 / 700 mm        Locking device included, improved sealing

KM50II TD          Tandem – dual actuator up to 2×600 N   300 / 500 / 700 mm        Synchronized operation, communication cable included

KM50II TD VH    Tandem with locking       up to 2×600 N   300 / 500 / 700 mm        Tandem + locking device, maximum sealing and safety