Series 20 Pushbutton Switch


  • Plastic unitized housing
  • Circuitry SPST – 2PDT
  • Mounts in 5/8″ dia. mounting hole
  • Low profile on front panel
  • Replaceable legend lens caps
  • LED or incandescent back lighting

Electro-Mech’s Series 20 switches are provided in 1/2, 5/8, and 3/4 square or round, and 1/2 x 3/4 display configurations, all mounting in the same size 5/8 diameter round mounting hole from the front of the panel. These low profile units are available in any switching mode with independent lamp circuitry from SPST to DPDT. The all plastic, unitized housing assures ease in handling (no adapters, clamps, or brackets). Just drop the switch in the round hole and secure with a hex nut or round slotted nut from behind the panel. Series 20 switches have the same internal parts as the all metal Series 6100, including positive action, reliable circuitry and proven low bounce characteristics made possible by our unique design concept of silver slide bar action.

Available options include:
GP = gold plated contacts for low level switching PC = printed circuit board terminals
AF = round slotted nut

Other custom designs have included matching indi- cator lights, non-lighted switches, clip spring mounting. Housing color can be custom molded.


Ratings: 30 volts DC or 125 volts AC; 2.0A resistive, 0.5A inductive
Weight: 0.8 oz. (23 g) (approx.)
Operating Pressure: 2 lbs.+ 1 lb. (908g + 454g)
Plunger Travel: 0.125 nominal (3.2mm)
Actuations: 100,000 minimum
Contacts: Silver plated (gold plating optional)
Terminals: Standard EMC solder lug. Accepts two 20 AWG wires. PC pins avail.
Lens: Accommodates EMC Series 20 lens. See Lens Table in datasheet
Lamp or LED: Accommodates one T 1-3/4 (5mm) midget flange base lamp or LED. Lamp circuit is independent.
LK Option: Optional anti-rotation Locating Key.