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D4A-[]N

General-purpose Limit Switch

D4A-[]N

The Limit Switch with Better Seal, Shock Resistance, and Strength

Set model number

SPDT, Double-break Switches

Receptacle box G 1/2 Conduit
Indicator Without indicator With neon lamp
indicator (AC)
With LED
indicator (DC)
Actuator Model Approved
standards
Model Approved
standards
Model
Roller
lever *1
Standard
D4A-3101N UL,
CSA
D4A-3301N UL,
CSA
D4A-3E01N
High-
sensitivity
D4A-3102N UL,
CSA
D4A-3302N UL,
CSA
D4A-3E02N
Low-torque
D4A-3103N UL,
CSA
--- --- ---
High-
sensitivity,
Low-
torque
D4A-3104N UL,
CSA
D4A-3304N UL,
CSA
---
Maintained *2
D4A-3105N UL,
CSA
D4A-3305N UL,
CSA
D4A-3E05N
Side
plunger
Standard
D4A-3106N UL,
CSA
--- UL,
CSA
---
Vertical
roller
D4A-3107-VN UL,
CSA
D4A-3307-VN UL,
CSA
D4A-3E07-VN
Horizontal
roller
D4A-3107-HN UL,
CSA
D4A-3307-HN UL,
CSA
---
Adjustable
D4A-3108N UL,
CSA
D4A-3308N UL,
CSA
D4A-3E08N
Top
plunger
Standard
D4A-3109N UL,
CSA
D4A-3309N UL,
CSA
---
Roller
D4A-3110N UL,
CSA
D4A-3310N UL,
CSA
---
Adjustable
D4A-3111N UL,
CSA
D4A-3311N UL,
CSA
---
Flexible
rod
Spring wire
D4A-3112N UL,
CSA
D4A-3312N UL,
CSA
D4A-3E12N
Plastic rod
D4A-3114N UL,
CSA
D4A-3314N UL,
CSA
D4A-3E14N
Cat whisker
D4A-3115N UL,
CSA
D4A-3315N UL,
CSA
D4A-3E15N
Coil spring
D4A-3116N UL,
CSA
D4A-3316N UL,
CSA
D4A-3E16N

Note: 1. Switches are also available with []1/2-14 NPT conduits. The model numbers correspond as follows:
              (Examples) G 1/2 Conduits 1/2-14 NPT Conduits
                                    D4A-3[][][]N D4A-1[][][]N
                                    D4A-4[][][]N D4A-2[][][]N
           2. Switches are also available with fluoro-rubber seals for higher resistance to chemicals. (The operating
                temperature range for these Switches, however, is −10 to +120°C.) Add “-F” to the model number. (Example:
                D4A-3101N becomes D4A-3101N-F.) Ask your nearest OMRON representative for details.
*1. The lever is not included with the Roller Level Models. Select the lever from those listed in this data sheet and order it
       separately (refer to Levers on Data Sheet).
*2. The Maintained Switches have a lock mechanism for the switch operation and thus use a Fork Lever Lock.

DPDT, Double-break Switches

Receptacle box G 1/2 Conduit
Indicator Without indicator With neon lamp
indicator (AC)
With LED
ndicator (DC)
Actuator Model Approved
standards
Model Model
Roller
lever *1
Standard
D4A-4501N UL,
CSA
D4A-4L01N D4A-4P01N
High-
sensitivity
D4A-4502N UL,
CSA
--- ---
Low-
torque
D4A-4503N UL,
CSA
--- ---
High-
sensitivity,
Low-torque
D4A-4504N UL,
CSA
--- ---
Maintained * 2
D4A-4505N UL,
CSA
--- ---
Sequential
operation
D4A-4717N UL,
CSA
--- ---
Center neutral
operation
D4A-4918N UL,
CSA
--- ---
Side
plunger
Standard
D4A-4506N UL,
CSA
--- ---
Vertical roller
D4A-4507-VN UL,
CSA
--- ---
Horizontal roller
D4A-4507-HN UL,
CSA
--- ---
Adjustable
D4A-4508N UL,
CSA
--- ---
Top
plunger
Standard
D4A-4509N UL,
CSA
--- ---
Roller
D4A-4510N UL,
CSA
D4A-4L10N D4A-4P10N
Adjustable
D4A-4511N UL,
CSA
--- ---
Flexible
rod
Spring wire
D4A-4512N UL,
CSA
--- ---
Plastic rod
D4A-4514N UL,
CSA
--- ---
Cat whisker
D4A-4515N UL,
CSA
--- ---
Coil spring
D4A-4516N UL,
CSA
--- ---

Note: 1. Switches are also available with []1/2-14 NPT conduits. The model numbers correspond as follows:
              (Examples) G 1/2 Conduits 1/2-14 NPT Conduits
                                    D4A-3[][][]N D4A-1[][][]N
                                    D4A-4[][][]N D4A-2[][][]N
          2. Switches are also available with fluoro-rubber seals for higher resistance to chemicals. (The operating
               temperature range for these Switches, however, is −10 to +120°C.) Add “-F” to the model number. (Example:
               D4A-4501N becomes D4A-4501N-F.) Ask your nearest OMRON representative about delivery times and prices.
*1. The lever is not included with the Roller Level Models. Select the lever from those listed in this data sheet and order it
     separately (refer to Levers on Data Sheet).
*2. The Maintained Switches have a lock mechanism for the switch operation and thus use a Fork Lever Lock.

Individual Parts

Receptacle box

Type G1/2 conduit * 1 1/2-14NPT conduit * 2
Appearance Model Approved standards Model Approved standards
SPDT double-break
D4A-3000N UL, CSA D4A-1000N UL, CSA
DPDT double-break
D4A-4000N UL, CSA D4A-2000N UL, CSA

*1. M6-screw mounting (standard mounting)
*2. 10-32UNF-screw mounting (standard mounting)

Switch Box

Indicator Without
indicator
With neon lamp
indicator (AC)
With LED
indicator (DC)
Appearance Model Approved
standards
Model Approved
standards
Model
SPDT
double-break

(Without indicator lamp)
D4A-0100N UL,
CSA
D4A-0300N UL,
CSA
D4A-0E00N
DPDT
double-break

(Without indicator lamp)
Simultaneous
operation
D4A-0500N UL,
CSA
D4A-0L00N --- D4A-0P00N
Sequential
operation
D4A-0700N UL,
CSA
--- --- ---
Center neutral
operation
D4A-0900N UL,
CSA
--- --- ---

Heads

Appearance Model Approved standards
Roller lever * 1
Standard D4A-0001N UL, CSA
High-sensitivity D4A-0002N UL, CSA
Low-torque * 2 D4A-0003N UL, CSA
Sequential operation: * 3 D4A-0017N UL, CSA
Center neutral operation: * 3 D4A-0018N UL, CSA
Maintained D4A-0005N UL, CSA
Side plunger
Standard D4A-0006N UL, CSA
Vertical roller D4A-0007-VN UL, CSA
Horizontal roller D4A-0007-HN UL, CSA
Side adjustable D4A-0008N UL, CSA

*1. Levers for Roller Lever Switches are optionally available. Select the lever from those listed in this data sheet and
        order (refer to Levers on Data Sheet).
*2. The D4A-C00 adjustable roller lever is too heavy and long for these heads and it should not be used or mechanical
       malfunction will result.
*3. These heads cannot be used for double break operations.

Appearance Type Model Approved standards
Top plunger
Standard D4A-0009N UL, CSA
Roller D4A-0010N UL, CSA
Adjustable D4A-0011N UL, CSA
Flexible rod
Spring wire D4A-0012N UL, CSA
Plastic rod D4A-0014N UL, CSA
Cat whisker D4A-0015N UL, CSA
Coil spring D4A-0016N UL, CSA

Levers

Actuator Model
Roller Lever D4A-A00
D4A-A10
D4A-A20
D4A-A30
D4A-B06
Adjustable Roller Lever D4A-C00
D4A-D00
Resin Loop Lever D4A-F00
Fork Lever Lock D4A-E30
D4A-E20
D4A-E10
D4A-E00

Note: Refer to Dimensions for Lever shapes and applicable models.