JR Merritt


NSO-SFA Joystick

The NSO-SFA single axis mill duty controllers are characterized by their unmatched versatility and rugged construction. Space saving design, cast aluminum construction, IP56 housing, heavy-duty torsion spring and marine epoxy paint make this controller resistant to abuse and ideally suited for high-duty cycle mill applications and environmentally challenging marine applications.


• Compact, versatile design

• Rugged, IP56, cast construction

• Space saving design

• 10 million cycle mechanical operating life

• Rugged 8mm diameter stainless steel handle shaft

• Corrosion resistant components

• Double pole field replaceable contacts

• Direct drive proportional output system

Axis Option
  • • Single

Output Options
  • • Contacts

  • • Potentiometer

  • • Encoder

  • • 4-20mA

  • • Transformer

Joystick Action
  • • Spring Return

  • • Maintained

  • • Friction Brake

Mounting Style
  • • Drop-in (From Above)

Compatible Handles


For use on shipboard applications, dredgers and offshore rigs for both above and below deck controlling of cranes, windlasses, engine governors and bow thrusters. The NSO-SFA is also popular on cranes and other material handling equipment in steel mills, foundries and process lines as well as mining vehicles, excavating and logging equipment.


General Data

# of Axis


Output Options

Contacts, Potentiometer, Encoder, 4-20mA & Transformer

Joystick Action

Spring Return, Friction Brake or Maintained

Handle Travel

+/- 42 degrees each axis

Max # of Steps

Up to 7-0-7

Handle Compatibility

Standard Handles, Push Button, Mechanical Interlock, RH, BH, MG27


10 million cycles


Powder-coated aluminum housing.

Est. Shipping Weight

3 lbs.

Est. Shipping Dimensions

13 in. x 10 in. x 6 in.

Mounting Data

Mounting Style


Mounting Footprint

2.56" x 2.56"
See literature for additional mounting specifications

Environmental Data

IP Rating


Operating Temperature

-4 to +140 degrees F [-20 to +60 degrees C]

Storage Temperature

-40 to +140 degrees F [-40 to +60 degrees C]

Electrical Data

Contact Specifications

Switch Type:
Double Pole Snap-In Contact Blocks

Max. Number:
Up to 10 contact blocks (20 circuits)

Max. Switching Capacity:
Making - 100 amps
Breaking - (0.7PF) 240V 80 amps

Rating (AC):
Continuous 16 amps @ 240V
Resistive 8 amps @ 240V
Inductive 6 amps @ 240V

Captive Saddle Clamp

Max. Wire Size:
12 AWG

Additional Specifications

Reference product literature for additional specifications

Technical Drawings



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