JR Merritt


PRO-4 Joystick

The ultra-rugged PRO-4 provides precise proportional or discrete control for electro-hydraulic valves and AC/DC variable speed drives. Your specific control requirements can be accommodated by a variety of standard and custom engineered configurations. The PRO-4 is available with a variety of outputs including 11A microswitches, potentiometers, hall-effect, PWM, CAN, and VNSO contact blocks.


• Versatile design

• Heavy duty construction

• Long life, compression type return spring system

• 10 million cycle mechanical operating life

• Rugged 10mm diameter handle shaft

• Tooled, fixed cams

Axis Options
  • • Single

Output Options
  • • Microswitches

  • • Potentiometer

  • • Hall-Effect

  • • CAN

  • • PWM

Joystick Action
  • • Spring Return

  • • Friction Brake

Mounting Style
  • • Drop-in (From Above)

  • • Panel (From Below)

Compatible Handles


The PRO-4 is utilized in a variety of single axis industrial and mobile hydraulic machinery. Typical applications includes:

• Scissor Lifts

• Work Platforms

• Bucket trucks

• Cranes

• And More


General Data

# of Axis


Output Options

Contacts, Microswitches, Potentiometer, Hall-Effect, PWM & CAN

Joystick Action

Spring Return or Friction Brake

Handle Travel

+/- 36 degrees for potentiometer
+/- 20 degrees for Bang/Bang and Hall-effect

Max # of Steps

Up to 3-0-3 with microswitches
Up to 5-0-5 with NSO contact blocks

Handle Compatibility

2 Piece, Round Ball, Mechanical Interlock, RH, RHS, BH, FG-2, FG-3, FG-4, FG-5, MG1, MG2, MG13, MG27, TH30, G56


10 million cycles


Cast Aluminum body with plated steel side plates with self lubricating bearings, hard nickel chromium spring return arms, compression style return spring and brass gears.

Est. Shipping Weight

2 lbs.

Est. Shipping Dimensions

8 in. x 6 in. x 6 in.

Mounting Data

Mounting Style

Drop-in or Panel (from below)

Mounting Footprint

2.56" x 2.56"
See literature for additional mounting specifications

Environmental Data

IP Rating


Operating Temperature

-13 to +158 degrees F [-25 to +70 degrees C]

Storage Temperature

-40 to +158 degrees F [-40 to +70 degrees C]

Electrical Data

Contact Specifications

Switch Type:
SPDT (Form C) V Series Microswitches
Double Pole Snap-In Contact Blocks (PRO-4N)

Max. Number:
Up to 4 with potentiometer
Up to 6 without potentiometer
Up to 3 contact blocks (PRO-4N)

Current Rating (AC):
16A (PRO-4N)

Voltage Rating (AC):
240 (PRO-4N)

.187" x .20" male quick connect
Saddle clamps (PRO-4N)

Max. Wire Size:
18 AWG for microswitch
12AWG for contact block (PRO-4N)

Hall-Effect Specifications

Supply Voltage:
4.5 to 5.5 VDC

Output Voltage:
Ratiometric 0.5 - 2.5 - 4.5 +/- 0.15V @ 5.0V supply
Additional supply and output options available

Output Current: 10mA

Power Consumption: 20 mA @ full load

20 AWG wire 6" leads with mini-fit connector

EMC Emissions: Complies with EN61000-6-4:2007 Class A Group 1, 80-1000 MHz

EMC Immunity: Complies with or exceeds EN61000-6-2:2005, expanded to include:
RFI Immunity of 100 V/M @ 80-1000 MHz
ESD Immunity of 15Kv air, 8Kv contact

Can Specifications

CANOpen, J1939 or basic CAN protocols

4 analog inputs
8 digital inputs
2 digital outputs

See a complete listing of CANbus technical data in ESS408 CAN Based Interface Module Board literature

Additional Specifications

Reference product literature for additional specifications

Technical Drawings



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