COMPACT ELECTRIC ACTUATOR KTN 20NM
SERIES 20
- COMPACT DESIGN
- MULTIVOLTAGE
- FAST OPERATION
- FAILSAFE OPTION
- OLED DISPLAY
Nominal Torque: 20Nm (178 in.lbs)
Voltage: 24VAC/DC, 95-265VAC, 12VDC
Protection Rating: IP67 / Nema 4x
COMPACT ELECTRIC ACTUATOR KTN 20NM
Technical Specifications:
Nominal Torque: 20Nm (178 in.lbs)
Voltage: 24VAC/DC, 95-265VAC, 12VDC
Protection Rating: IP67 / Nema 4x
Technical Features
COMPACT ELECTRIC ACTUATOR: POWER AND EFFICIENCY IN CONFINED SPACES – SERIES 20
The Compact Electric Actuator Series 20 is the most popular choice worldwide. Designed to deliver a 20Nm torque output with a compact design, it is ideal for small-diameter valves such as ball and butterfly valves made of brass, stainless steel, or PVC. Additionally, it features advanced characteristics that make it an iconic solution in the world of actuators.

On/Off
Standard Open/Close, power to open, power to close. Stays put on loss of power.
Failsafe/Modulating Failsafe
High Speed / Modulating High Speed
This actuator allows for fast opening and closing, with a runtime 50% faster than the standard, achieving 1 second in the 10, 20, and 50Nm series with a 24VDC motor. Additionally, it offers modulating control through 4-20mA, 0-10V, or 2-10V, enabling a movement from 4mA to 20mA in 1 second (only for the 10, 20, and 50 series with DC motor).
Smart Menu
All of our Smart actuators come with a SmartMenu featuring password-protected firmware. Once the password is entered, you can change parameters such as speed, working angle, failsafe position, 3-position configuration, and much more.
Timer
Through our SmartMenu, the Timer series allows programming a 24/7 timer with up to 60 operations (open/close movements) per day. Intelligent functionality without the need for a PLC.
Modbus
Modbus RS485/RTU and CANBus are available as standard to connect the actuator to a BUS system. Through the BUS communication protocol, you can read the actuator’s position, detect errors, and more. We also offer Modbus TCP/IP upon request.
Other protocols will be available soon.
Feedback
All of our actuators have open/close feedback. The basic models use mechanical switches, the Smart series uses electronic relays, and the modulating models have a modulation output (e.g., 4-20mA) instead of end-of-travel feedback.
3 Positions
Through the SmartMenu, you can configure the actuator in 3 positions (open, close, and intermediate) or set it to 0-90-180 degrees for 3-way valves. This flexibility allows precise adaptation of the actuator to various applications.
Local Control
Through the SmartMenu, the smart actuators allow manual operation via touch buttons on the screen. Protected by a password, it offers electronic manual override, facilitating opening and closing when power is available.
Easy installation



Specifications
COMPACT ELECTRIC ACTUATOR: POWER AND EFFICIENCY IN CONFINED SPACES – SERIES 20
| Standard Specifications | B20 Basic | S20 Smart |
| Max Rated torque Nm output (in.lbs) | 25Nm Break (221) / Run 20Nm (178) | 25Nm Break (221) / Run 10Nm (178) |
| Voltage Range | 24VAC/DC, 95-265VAC, 12VDC | 24VAC/DC, 95-265VAC, 12VDC |
| Mounting (ISO5211) x drive (female octagon) | F03, F04 & F05 x 14mm | F03, F04 & F05 x 14mm |
| Standard Run Time | 10 seconds | 10 seconds |
| Electrical connection | Pre-wired multi-core 0.8m cable | Pre-wired multi-core 0.8m cable |
| End of travel confirmation (dry contact/volt-free) | 2x Mechanical micro-switches | 2x Electronic relays |
| LED Status | LED open/close | LED open/close/alert |
| Actuator Dimensions & Weight in Kg | Height 90 mm x Width 70mm x Lenght 104 mm / 0,8 kg | Height 90 mm x Width 70mm x Lenght 104 mm / 0,8 kg |