Otto, 3 Position DPDT Rotary Switch, 20 A @ 28 V dc, Tab

  • RS Stock No. 737-3850
  • Mfr. Part No. R2AB4455NNNN
  • Manufacturer Otto
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
Product Details

IP68 Rotary Switches, Otto R2 Series

Used in the heavy equipment, marine, process control and instrumentation markets, the Otto R2 rotary switch is an excellent
replacement for rocker switches, offering improved visual indication, additional lighting options and different styling on front panels. The R2 is a sealed, lighted rotary switch which snaps into a 1.475” x 0.875" industry standard rocker switch panel cut-out.
The R2 rotary switch provides up to three positions in various combinations of momentary and maintained action. It is
capable of handling loads from logic level up to 20 amps resistive. Sealing is to IP68S via a shaft O-ring seal in front and a potted base in the back.
The R2 offers lighting options including up to three independent LED light positions which illuminate a lens on the rotary knob.

Rated 16A at 110Vac and 20A at 12/28Vdc
Connection via .250" fast on terminals
Keyed connection pin
Black soft touch selector knob (apart from stock numbers 294-331 and 294-246 which are plain black)

Attribute Value
Contact Configuration DPDT
Contact Current Rating 20 A @ 28 V dc
Number of Switch Positions 3
Number of Contacts 2
Voltage Rating 28 V dc, 110 V ac
Depth 1.68mm
Width 0.93mm
Dimensions 0.96 x 1.7 x 2.31in
Mounting Type Panel Mount
Mounting Hole Size 1.475 x 0.875 in
Terminal Type Tab
Application Heavy Equipment, Instrumentation, Marine, Process Control
Case Material Thermoplastic
Contact Material Gold Plated Silver Alloy
IP Rating IP68S
Maximum Operating Temperature +85°C
Mechanical Life 100000Cycles
Minimum Operating Temperature -40°C
36 In stock for delivery within 4 working days
Price Each
SGD 29.66
(exc. GST)
SGD 31.74
(inc. GST)
Per unit
1 +