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30-251BLK-EW

Description
Pushbutton Switch, SPST, Momentary, Wire Terminal, Panel Mount,
CategoryMechanical and electronic products    switch   
File Size501KB,3 Pages
ManufacturerGrayhill
Websitehttp://www.grayhill.com
Environmental Compliance
Download Datasheet Parametric View All

30-251BLK-EW Overview

Pushbutton Switch, SPST, Momentary, Wire Terminal, Panel Mount,

30-251BLK-EW Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Reach Compliance Codecompliant
ECCN codeEAR99
Installation featuresPANEL MOUNT
surface mountNO
Switch actionMOMENTARY
switch functionSPST
Switch typePUSHBUTTON SWITCH
Termination typeWIRE
Base Number Matches1
Pushbutton Options and Accessories
SEALED TERMINAL AND
WIRE LEAD OPTIONS
OPTION -E AND -EW
FEATURES
1
/
4
,
1
/
2
, and 1 Amp
• Limit, Overtravel, or Panel Seal
• Butt or Wiping Contact
• Normally Open or Normally Closed
• Momentary or Push/Pull
• Series 23, 30, 39 and 46
Option -EW,
Potted Base & 6"
Wire Leads
Option -E
Epoxy-Sealed
Terminals
SPECIFICATIONS
Rating Criteria
Make and Break Current Rating:
See page
for standard part number
Contact Resistance:
25 milliohms maximum
on a new switch. Less than 4 milliohms per inch
of wire for wire lead option styles.
Insulation Resistance:
1,000 megohms
minimum between mutually insulated parts
Voltage Breakdown:
1,000 Vac minimum
between mutually insulated parts
Pushbutton Switches
Standard
Part Number
Red Button
23-1
30-1
30-15
30-17 RED
30-16 RED
30-251 RED
30-252 RED
30-32 RED
30-6
30-601 RED
39-1*
––––
39-12*
39-101
39-351 RED
39-352 RED*
39-601 RED
39-701***
39-702***
46-101 RED
46-102 RED
46-110 RED
46-111 RED
46-150 RED
46-151 RED
46-200 RED
46-201 RED
46-270 RED
46-271 RED
Standard
Part Number
Black Button
23-4
30-3
30-37
30-17 BLK
30-16 BLK
30-251 BLK
30-252 BLK
30-32 BLK
30-2
30-601 BLK
39-3*
39-2
39-24*
––––
39-351 BLK
39-352 BLK*
39-601 BLK
––––
––––
46-101 BLK
46-102 BLK
46-110 BLK
46-111 BLK
46-150 BLK
46-151 BLK
46-200 BLK
46-201 BLK
46-270 BLK
46-271 BLK
Choices
of
Suffix
-E
-E, -EW
-E, -EW
-E, -EW
-E, -EW
-E, -EW
-E, -EW
-E, -EW
-E, -EW
-E, -EW
-EW**
-E,- EW
-EW**
-EW**
-EW**
-E, -EW
-EW*
-EW**
-E, -EW
-E, -EW
-E, -EW
-E, -EW
-E, -EW
-E, -EW
-E, -EW
-E
-E
-E
-E
Length Behind Panel
In inches (and millimeters)
-EW Style
Standard Switch
Body
& Terminals
0.665
0.592
0.679
0.958
0.958
0.632
0.645
0.867
0.605
0.592
0.315
0.490
0.455
0.650
0.350
0.529
0.315
0.800
0.510
0.890
0.890
0.890
0.890
0.957
0.957
0.921
0.921
0.957
0.957
(16,89)
(15,04)
(17,25)
(24,33)
(24,33)
(16,05)
(16,38)
(22,02)
(15,37)
(15,04)
(8,00)
(12,45)
(11,56)
(16,51)
(8,89)
(13,44)
(8,00)
(20,32)
(12,95)
(22,61)
(22,61)
(22,61)
(22,61)
(24,31)
(24,31)
(23,39)
(23,39)
(24,31)
(24,31)
––––
0.645
0.728
1.007
1.007
0.685
0.700
0.896
0.640
0.645
0.440
0.575
0.575
0.775
0.450
0.630
0.440
0.925
0.750
0.957
0.957
0.957
0.957
1.024
1.024
––––
––––
––––
––––
(16,38)
(18,49)
(25,58)
(25,58)
(17,40)
(17,78)
(22,76)
(16,26)
(16,38)
(11,18)
(14,61)
(14,61)
(19,69)
(11,43)
(16,00)
(11,18)
(23,50)
(19,05)
(24,31)
(24,31)
(24,31)
(24,31)
(26,01)
(26,01)
Materials and Finishes
Potting Sleeve (Series 39):
Thermoset Plastic
Wire Leads:
#26AWG, (.99mm diameter)
insulated Teflon, Copper stranded wire, per
MlL-W-16878,Type E. Ends are stripped
0.250" (6.35) and solder dipped. For other
specifications, see Page References.
*Epoxy potting sleeve enlarges the diameter of the -EW style to 0.300 (7,62).
**Sealed terminal (-E) option is not necessary; terminals have sealed construction.
***Natural Color Button
†Adjustable from 1.214 (30,84) to 1.334 (33,88) dependent on button height, see switch pages.
Pushbutton
60
Grayhill, Inc. • 561 Hillgrove Avenue • LaGrange, Illinois
60525-5997 • USA • Phone: 708-354-1040 • Fax: 708-354-2820 • www.grayhill.com
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