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D4 Series
Miniature Snap-Action Switches
U.S. Versions NOT Recommended for New Design
Features
  • Features
  • 6 current ratings
  • Choice of actuators
  • Various terminal types
  • 3 contact arrangements
  • Choice of standard or light operating force
  • Long-life coil spring mechanism
  • Agency approved extended life versions
  • ENEC/VDE approval standard on European versions
  • Cadmium free contact material available
D4 Series
D4 Series

  download PDF

D4 Series Cutaway

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  Electrical Ratings
Switch
Series
EN61058
Rating
UL1054
Rating
Electrical Life at Rated Load
According to EN
(Min. Operations)
According to UL
(Min. Operations)
D41
0.1(0.05)A, 250V~;
0.5A 30VDC
0.1A, 125/250VAC; 0.5A 30VDC,
1A 125VAC (6k life only)
50,000
6,000*
D42
3(1)A, 250V~
3A, 125/250VAC, 1/10HP, 250VAC
50,000
6,000*
D43
6(2)A, 250V~
5A, 125/250VAC, 1/4HP, 250VAC
50,000
6,000*
D44
10(3)A, 250V~
10A, 1/2HP, 125/250VAC
50,000
6,000*
D45
16(4)A, 250V~
10(3)A, 400V~ (Std. force only)
15A, 1/2HP, 125/250VAC
50,000
6,000*
D48
21(8)A, 250V~
21A, 250VAC; 1HP, 125VAC; 2HP, 250VAC
10,000
6,000
Operating life for 125°C and 150°C available upon request.
*Indicates 100K life available. Consult factory.
  Specifications
Electrical
Temperature Rating: -40° to +85°C, 125°C or 150°C
Flammability Rating: UL94V-O
Materials
Case: Thermoplastic Polyester (PET)
Actuating Button: Thermoplastic Acetal (POM) 85°C
Thermoplastic Polyester (PET) 125°C, 150°C
Auxiliary Actuator: Stainless Steel or Cold-Rolled Steel (Nickel-Plated)
Common Terminal: Brass
NO/NC Terminals: Brass
Moving Blade: Silver-Plated Brass
Contacts: Gold Crosspoint (D41)
Silver Alloy (D43 - D48)
Silver (D42)
  Approvals
UL - U.S. and Canada ENEC Germany - DVE UL File Number: E314201 RoHS compliant. Switch Protection Level: IP40
  Dimensions
D4  U.S. Dimensions

Inches (mm)

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D4 European Dimensions

Inches (mm)

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  Terminals

Inches (mm)
Note: Tolerance on terminals ±0.003" (0.08mm)

Terminals
  Drilling Patterns for PCB Terminals
PCB Drilling Patterns

Click image for larger view

  Mounting

It is recommended to use a pan-head screw M 2.3 DIN 912 or DIN 84 shape A with washer DIN 125, applying a maximum tightening torque of 12 Ncm.

  Actuators

Many special forms and lengths of actuators are available. Standard type integral hinged lever and roller actuators are available in choice of 2 mounting positions. Actuation lengths are dimensioned from centerline of switch mounting hole as shown.

Note: Actuator tolerance ±0.003 inch (±0.08mm)

 

Click image for larger view.


Auxiliary Actuator Length

  Commonly Stocked Distributor Items
Click on the Part Number to open 'Check Distributor Stock' window.
Item
Number
EN Rating
UL Rating
Terminals
Maximum
Operating
Force
(cN)
Maximum
Pretravel
inches
(mm)
Operating
Point inches
(mm)
Minimum
Overtravel
inches (mm)
Max.
Movement
Differential
inches (mm)
Actuation
Length
inches (mm)
Case
Identifier
Mark
D41CR1AA 0.1(0.05)A, 250VAC
0.5A, 30VDC
1(1)A, 250VAC
0.1A, 125/250VAC
0.5A, 30VDC
1A, 125VAC
0.187"
x
0.020"
170 0.047" (1.2) 0.559/0.599
(14.2/15.2)
0.05" (1.3) 0.012" (0.3) N/A D41Y
D41CR1LA 0.1(0.05)A, 250VAC
0.5A, 30VDC
1(1)A, 250VAC
0.1A, 125/250VAC
0.5A, 30VDC
1A, 125VAC
0.187"
x
0.020"
190 0.047" (1.2) 0.579/0.618
(14.7/15.7)
0.035" (0.9) 0.012" (0.3) 0.835"
(21.2)
D41Y
D41CR1LD 0.1(0.05)A, 250VAC
0.5A, 30VDC
1(1)A, 250VAC
0.1A, 125/250VAC
0.5A, 30VDC
1A, 125VAC
0.187"
x
0.020"
86 0.126" (3.2) 0.551/0.646
(14.0/16.4)
0.090" (2.3) 0.031" (0.8) 1.40"
(35.6)
D41Y
D41CR1RA 0.1(0.05)A, 250VAC
0.5A, 30VDC
1(1)A, 250VAC
0.1A, 125/250VAC
0.5A, 30VDC
1A, 125VAC
0.187"
x
0.020"
190 0.047" (1.2) 0.776/0.839
(19.7/21.3)
0.039" (1.0) 0.012" (0.4) 0.811"
(20.6)
D41Y
D41LR1AA 0.1(0.05)A, 250VAC
0.5A, 30VDC
1(1)A, 250VAC
0.1A, 125/250VAC
0.5A, 30VDC
1A, 125VAC
0.187"
x
0.020"
45 0.047" (1.2) 0.559/0.599
(14.2/15.2)
0.05" (1.3) 0.012" (0.3) N/A D41X
D42LR1AA 3.1(0.05)A, 250VAC 3A, 125/250VAC
1/10 HP, 250VAC
0.187"
x
0.020"
45 0.047" (1.2) 0.559/0.599
(14.2/15.2)
0.05" (1.3) 0.012" (0.3) N/A D42X
D42LRGAA 3.1(0.05)A, 250VAC 3A, 125/250VAC
1/10 HP, 250VAC
0.187"
x
0.020"
2 0.500" (12.7) 0.433/0.764
(11.0/19.4)
0.311" (7.9) 0.098" (2.5) 2.93"
(74.4)
D42X
D43CR1AA 6(2)A, 250VAC 5A, 125/250VAC
1/4 HP, 250VAC
0.187"
x
0.020"
170 0.047" (1.2) 0.559/0.599
(14.2/15.2)
0.05" (1.3) 0.012" (0.3) N/A D43Y
D44CR1AA 10(3)A, 250VAC 10A, 1/2 HP
125/250VAC
6A, 30VDC
0.187"
x
0.020"
285 0.047" (1.2) 0.559/0.599
(14.2/15.2)
0.05" (1.3) 0.012" (0.3) N/A D44Y
D44CR1LD 10(3)A, 250VAC 10A, 1/2 HP
125/250VAC
6A, 30VDC
0.187"
x
0.020"
144 0.126" (3.2) 0.551/0.646
(14.0/16.4)
0.090" (2.3) 0.031" (0.8) 1.40"
(35.6)
D44Y
D44CR1RA 10(3)A, 250VAC 10A, 1/2 HP
125/250VAC
6A, 30VDC
0.187"
x
0.020"
330 0.47" (1.2) 0.776/0.839
(19.7/21.3)
0.039" (1.0) 0.012" (0.4) 1.811"
(20.6)
D44Y
D44CR1RD 10(3)A, 250VAC 10A, 1/2 HP
125/250VAC
6A, 30VDC
0.187"
x
0.020"
144 0.126" (3.2) 0.764/0.850
(19.4/21.6)
0.087" (2.2) 0.031" (0.8) 1.34"
(34.1)
D44Y
D44LR1AA 10(3)A, 250VAC 10A, 1/2 HP
125/250VAC
6A, 30VDC
0.187"
x
0.020"
75 0.047" (1.2) 0.559/0.599
(14.2/15.2)
0.05" (1.3) 0.012" (0.3) N/A D44X
D44LR1LD 10(3)A, 250VAC 10A, 1/2 HP
125/250VAC
6A, 30VDC
0.187"
x
0.020"
40 0.126" (3.2) 0.551/0.646
(14.0/16.4)
0.090" (2.3) 0.031" (0.8) 1.40"
(35.6)
D44X
D44LR1LL 10(3)A, 250VAC 10A, 1/2 HP
125/250VAC
6A, 30VDC
0.187"
x
0.020"
17 0.030" (7.6) 0.472/0.724
(12.0/18.4)
0.185" (4.7) 0.067" (1.7) 2.75"
(69.9)
D44X
D44LR1MD 10(3)A, 250VAC 10A, 1/2 HP
125/250VAC
6A, 30VDC
0.187"
x
0.020"
25 0.020" (5.1) 0.535/0.661
(13.6/16.8)
0.142" (3.6) 0.051" (1.3) 1.58"
(40.1)
D44X
D44LR1ML 10(3)A, 250VAC 10A, 1/2 HP
125/250VAC
6A, 30VDC
0.187"
x
0.020"
10 0.050" (12.7) 0.433/0.763
(11.0/19.4)
0.311" (7.9) 0.098" (2.5) 2.92"
(74.4)
D44X
D44LR1RA 10(3)A, 250VAC 10A, 1/2 HP
125/250VAC
6A, 30VDC
0.187"
x
0.020"
75 0.47" (1.2) 0.776/0.839
(19.7/21.3)
0.039" (1.0) 0.012" (0.4) 1.811"
(20.6)
D44X
D44LR1RD 10(3)A, 250VAC 10A, 1/2 HP
125/250VAC
6A, 30VDC
0.187"
x
0.020"
40 0.126" (3.2) 0.764/0.850
(19.4/21.6)
0.087" (2.2) 0.031" (0.8) 1.34"
(34.1)
D44X
D45CR1AA   15A, 1/2 HP
125/250VAC
0.187"
x
0.020"
400 0.047" (1.2) 0.559/0.599
(14.2/15.2)
0.05" (1.3) 0.012" (0.3) N/A D45Y
D45LR1AA   15A, 1/2 HP
125/250VAC
0.187"
x
0.020"
100 0.047" (1.2) 0.559/0.599
(14.2/15.2)
0.05" (1.3) 0.012" (0.3) N/A D45X
D45LR1LL   15A, 1/2 HP
125/250VAC
0.187"
x
0.020"
22 0.030" (7.6) 0.472/0.724
(12.0/18.4)
0.185" (4.7) 0.067" (1.7) 2.75"
(69.9)
D45X
D45LR1ML   15A, 1/2 HP
125/250VAC
0.187"
x
0.020"
13 0.050" (12.7) 0.433/0.763
(11.0/19.4)
0.311" (7.9) 0.098" (2.5) 2.92"
(74.4)
D45X
Case Identiifer Mark: Case Stamp to denote light or standard force after contact rating. For example, 10 amp light force is D44X. 10 amp standard force is D44Y.
** Additional part numbers available. Contact factory for minimums and availability.
  Ordering Information

Identifiers
Switches with a “standard” operating force are identified by a ‘Y’ next to the standard model description, e.g. D43Y.
Switches with a “light” operating force are identified by a ‘X’ next to the standard model description, e.g. D43X.

Ordering Info Chart

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Specifications subject to change without notice.