General-purpose Basic Switch
Z
CSM_Z_DS_E_4_4
Best-selling Basic Switch Boasting
High Precision and Wide Variety
• A large switching capacity of 15 A with high repeat accuracy.
• A wide range of variations in contact form for your selection: basic,
split-contact, maintained-contact, and adjustable contact gap types.
• A series of standard models for micro loads is available.
• A series of molded terminal-type models incorporating safety
terminal protective cover is available.
Be sure to read Safety Precautions on page 26 and Safety Precautions
for All Basic Switches.
For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.
Model Number Structure
Configuration
Refer to page 3.
Refer to page 5.
Basic models
General-purpose
Drip-proof
Without terminal protective cover
Refer to page 5.
Refer to page 2.
Refer to page 4.
Refer to page 4.
With terminal protective cover
Molded terminal
Split-contact models
General-purpose
General-purpose
Maintained-contact models
Basic Models
Split-contact Models
• This type is identical in construction to the general-purpose basic
switch except that it has two pairs of simultaneous acting contacts
by splitting moving contacts.
• Since the moving contacts are connected to a common terminal,
either parallel or series connection is possible.
• Highly reliable micro load switching is ensured if the model is used
as a twin-contact switch.
General-purpose
• A variety of actuators is available for a wide range of application.
• The contact mechanism of models for micro loads is a crossbar
type with gold-alloy contacts, which ensures highly reliable
operations for micro loads.
• Contact Gap:
H2: 0.20 mm (extra-high-sensitivity)
H: 0.25 mm (high-sensitivity, micro voltage current load)
G: 0.5 mm (standard)
E: 1.8 mm (high-capacity)
Maintained-contact Models
• The maintained-contact type has a reset button at the bottom of the
switch case, in addition to the pushbutton (plunger) located on the
opposite side of the reset button. Use these buttons alternately.
• Since the Switch has greater pretravel than overtravel, it is suitable
for use in reversible control circuits, manual reset circuits, safety
limit circuits, and other circuits which are not preferable for
automatic resetting. (For further details, refer to individual
datasheets.)
Drip-proof
• These Switches use a rubber boot on the actuator and adhesive fill
between the case and cover to increase resistance to drips.
• Models with drip-proof terminal protective covers and molded
terminals with resin filling are also available.
1