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MB2411S1A25 Datasheet(PDF) 2 Page - Nihon Kaiheiki Industry Co. Ltd.

Part # MB2411S1A25
Description  Snap-Action Pushbuttons
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Manufacturer  NKK [Nihon Kaiheiki Industry Co. Ltd.]
Direct Link  http://www.nkkswitches.com
Logo NKK - Nihon Kaiheiki Industry Co. Ltd.

MB2411S1A25 Datasheet(HTML) 2 Page - Nihon Kaiheiki Industry Co. Ltd.

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NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
03-07
Snap-Action Pushbuttons
Series MB2400
General Specifications
Electrical Capacity (Resistive Load)
Power Level (code W):
3A @ 125V AC
Logic Level (code G):
0.4VA maximum @ 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V)
Logic/Power Level (code A):
Combines W & G ratings
Note: Find additional explanation of dual rating & operating range in Supplement section.
Other Ratings
Contact Resistance:
20 milliohms maximum for silver; 30 milliohms maximum for gold
Insulation Resistance:
1,000 megohms minimum @ 500V DC
Dielectric Strength:
1,000V AC minimum between contacts for 1 minute minimum;
1,500V AC minimum between contacts & case for 1 minute minimum
Mechanical Life:
200,000 operations minimum
Electrical Life:
25,000 operations minimum for silver; 100,000 operations minimum for gold
Nominal Operating Force:
Single pole 2.45N; double pole 3.92N
Travel
Pretravel .024” (0.6mm); Overtravel .016” (0.4mm); Total Travel .039” (1.0mm)
Materials & Finishes
Plunger:
Brass with nickel plating
Bushing:
Brass with nickel plating
Frame:
Stainless steel
Case:
Polybutylene terephthalate (PBT)
Base:
Diallyl phthalate resin
Movable Contactor:
Phosphor bronze with silver or gold plating
Movable Contacts:
Silver alloy (code W); copper with gold plating (code G); or silver alloy with gold plating (code A)
Stationary Contacts:
Silver alloy with silver plating (code W); copper or brass with gold plating (code G); or
silver with gold plating (code A)
Terminals:
Copper or brass with silver plating; copper or brass with gold plating
Environmental Data
Operating Temp Range:
–30°C through +85°C (–22°F through +185°F)
Humidity:
90 ~ 95% humidity for 96 hours @ 40°C (104°F)
Vibration:
10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range
& returning in 1 minute; 3 right angled directions for 2 hours
Shock:
50G (490m/s2) acceleration (tested in 6 right angled directions, with 3 shocks in each direction)
Installation
Mounting Torque:
1.5Nm (13.0 lbin) for double nut; 0.7Nm (6.0 lbin) for single nut
Cap Installation Force:
80.0N (18.0 lbf) maximum downward force on actuator
Soldering:
Wave Soldering (PC version): See Profile B in Supplement section.
Manual Soldering: See Profile B in Supplement section.
Cleaning:
These devices are not process sealed. Hand clean locally using alcohol based solution.
See Cleaning Specifications in Supplement section.
Standards & Certifications
Flammability Standards:
UL94V-0 available
UL & C-UL Recognized:
All single and double pole models recognized at 3A @ 125V AC or 0.4VA max. @ 28V DC max;
UL File No. WOYR2.E44145; add “/U” to end of part number to order UL mark on switch
C-UL File No. WOYR8.E44145; add “/C-UL” to end of part number to order C-UL mark on switch.
CSA Certified:
Single pole models with PC, solder lug, or Wirewrap terminals & double pole with PC or
Wirewrap terminals certified at 3A @ 125V AC or 0.4VA @ 28V maximum;
CSA File No. 023535-0-000; add “/C” to end of part number to order CSA mark on switch.
R


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