The types of General Purpose Stack Switch Components available are:
* .375 inch (9.52 mm) mounting centers
* .250 inch (6.35 mm) mounting centers
* "Tini-Stack" Switches .188 inch (4.78 mm) mounting centers
* Telephone Relay Type Switches
.250 inch (6.25 mm) mounting centers
Stack Switch Components
Switchcraft offers various stack switch components, such as contact springs, spacers, lifters, etc., in many lengths, thicknesses, mounting centers and other details.
Switchcraft can assemble components into innumerable different stack switch assemblies. It is impossible to catalog every type of stack that has been manufactured. Stack switch assemblies can be designed to meet UL requirements, but only as part of equipment.
.375 Inch STACK SWITCHES
Thousands of switching combinations are possible. Switch mounting centers are .375 inch (9.52 mm) (minimum) with .25 inch (6.35 mm) wide switch parts. Practical spring length is 2.625 inches (66.68 mm) (maximum). Contact Switchcraft for selection of contacts and ratings.
MINIATURE .188 Inch (4.78 mm) STACK SWITCHES
Many Tini-Stack switching combinations are possible. Switch mounting centers are .188 inch (4.78 mm) (minimum). Practical spring length is 1.750 inch (44.45 mm) (maximum).
SPECIFICATIONS
Springs: Copper alloy, in most standard gauge thicknesses ranging from .006 inch (0.15 mm) to .016 inch (0.41 mm).
Spacers: Rigid plastic, available in thickness of .015 inch (0.38 mm), .032 inch (0.81 mm) and .046 inch (1.17 mm).
Contacts: Welded cross bar palladium rated at 2A, 200W AC non-inductive load. Gold alloy generally recommended for "dry" circuit applications.
Tubing: Thermoplastic.
Lifters: Thermoplastic.
Mounting Hardware: Pressure plate, twin nut and screws: Steel, plated.
.250 Inch (6.35 mm) Inch STACK SWITCHES
Thousands of switching combinations are possible with slightly smaller parts. Mounting centers are .250 inch (6.35 mm) (minimum) with .188 inch (4.78 mm) wide parts. Practical spring length is 2.125 inches (53.98 mm) (maximum). Contact Switchcraft for selection of contacts and ratings.
TELEPHONE RELAY TYPE SWITCHES
Compact stack switches are particularly suitable for low activating force, such as in relay and magnetic operated devices. Contact Switchcraft for selection of contacts and ratings.
SPECIFICATIONS
Springs: Copper alloy, in thicknesses ranging from .006 inch (0.15 mm) to .012 inch (0.30 mm).
Spacers: Rigid plastic is standard in thickness of .031 inch (.79 mm), .047 inch (1.19 mm) and .063 inch (1.60 mm).
Contacts: Fine silver or welded cross bar palladium are standard. Palladium or gold alloy are generally recommended for "dry" circuit applications. Other contacts available for varied customer requirements on special order.
Tubing: Thermoplastic.
Lifters: Thermoplastic.
Bracket: Plated.
Mounting Hardware: Pressure plate, twin nut and screws: Steel, plated.
1. SPRINGS - Copper alloy in most standard gauge thicknesses of .006 (0.15 mm), .008 (0.20 mm), .010 (0.25 mm), .012 (0.30 mm), .016 (0.40 mm) and .020 inch (0.50 mm), a few