AT494 NKK Switches, AT494 Datasheet - Page 2

• Manufacturer Part Number: AT494
• Description: PROTECTIVE GUARD KB SER SQ&RND
• Manufacturer: NKK Switches
• Type: Protective Guardr
• Series: ATr

Specifications of AT494

• Accessory Type: Protective Guard
• Height: 11.5 mm
• Length: 19 mm
• Mounting Style: SMD/SMT
• Termination Style: Snap On
• Width: 19 mm
• Brand/series: KB Series
• Switch Type: Push Button Switch
• Operating Temp Range: -25C to 70C
• For Use With/related Products: KB Series - Square/Round
• For Use With: 360-2019 - SWITCH PB ILLUM DPDT ALT GRN SLD360-2018 - SWITCH PB ILLUM DPDT ALT AMB SLD360-2017 - SWITCH PB ILLUM DPDT ALT RED SLD360-2013 - SWITCH PB ILLUM DPDT ALT GRN SLD360-2012 - SWITCH PB ILLUM DPDT ALT AMB SLD360-2011 - SWITCH PB ILLUM DPDT ALT RED SLD360-2010 - SWITCH PB ILLUM DPDT MOM GRN SLD360-2009 - SWITCH PB ILLUM DPDT MOM AMB SLD360-2008 - SWITCH PB ILLUM DPDT MOM RED SLD360-2004 - SWITCH PB ILLUM DPDT MOM GRN SLD360-2003 - SWITCH PB ILLUM DPDT MOM AMB SLD360-2002 - SWITCH PB ILLUM DPDT MOM RED SLD360-2001 - SWITCH PB ILLUM SPDT ALT GRN SLD360-2000 - SWITCH PB ILLUM SPDT ALT AMB SLD360-1999 - SWITCH PB ILLUM SPDT ALT RED SLD360-1995 - SWITCH PB ILLUM SPDT ALT GRN SLD360-1994 - SWITCH PB ILLUM SPDT ALT AMB SLD360-1993 - SWITCH PB ILLUM SPDT ALT RED SLD360-1992 - SWITCH PB ILLUM SPDT MOM GRN SLD360-1991 - SWITCH PB ILLUM SPDT MOM AMB SLD360-1990 - SWITCH PB ILLUM SPDT MOM RED SLD360-1986 - SWITCH PB ILLUM SPDT MOM GRN SLD360-1985 - SWITCH PB ILLUM SPDT MOM AMB SLD360-1984 - SWITCH PB ILLUM SPDT MOM RED SLD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 360-1004

General Specifications
NKK Switches • email: [e-mail] • Phone [phone] • Fax [phone]
Electrical Capacity (Resistive Load)
Other Ratings
Materials & Finishes
Environmental Data
Installation
Standards & Certifications
Soldering Time & Temperature:
Nominal Operating Force:
Flammability Standards:
Operating Temp Range:
Power Level (code W):
Cap Installation Force:
Insulation Resistance:
Logic Level (code G):
Stationary Contacts:
Common Terminals:
Movable Contactor:
Contact Resistance:
Dielectric Strength:
Mounting Torque:
Lamp Terminals:
Mechanical Life:
Contact Timing:
UL Recognized:
End Terminals:
Housing Base:
CSA Certified:
Electrical Life:
Process Seal:
Vibration:
Note: See Supplement Index (page Z1) to find explanation of operating range.
Humidity:
Housing:
Travel:
Shock:
1A @ 125/250V AC or 1A @ 30V DC
0.4VA maximum @ 28V AC/DC maximum
50 milliohms maximum
1,000 megohms minimum @ 500V DC
For Silver: 1,000V AC minimum between contacts for 1 minute minimum &
1,500V AC minimum between contacts & case for 1 minute minimum;
For Gold: 750V AC minimum between contacts for 1 minute minimum &
1,500V AC minimum between contacts & case for 1 minute minimum
100,000 operations minimum
50,000 operations minimum for silver; 100,000 operations minimum for gold
Single pole 100 ~ 250 grams for maintained & 100 ~ 200 grams for momentary;
Double pole 150 ~ 350 grams for maintained & 150 ~ 300 grams for momentary
Nonshorting (break-before-make)
2.2mm (.087") pretravel; 0.80mm (.031") overtravel; 3.0mm (.118") total travel
Polyamide
Silver for power circuit; copper with gold plating for logic level circuit
Silver for power circuit; copper with gold plating for logic level circuit
Polyamide
Phosphor bronze with silver flash plating for power circuit;
Phosphor bronze with gold flash plating for logic level circuit
Brass with silver flash plating for power circuit;
Brass with gold flash plating for logic level circuit
Phosphor bronze with nickel flash plating
-25 C through +50 C (-13 F through +122 F)
90 ~ 95% humidity for 96 hours @ 40 C (104 F)
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
50G (490m/s
.78Nm (6.9 lb
4.51N (1.0 lbf) maximum downward force on cap
3 seconds @ 350 C or 5 seconds @ 270 C
Not available
UL94V-0 housing & base
Single & double pole models recognized at 1A @ 125/250V AC, 1A @ 30V DC,
& 0.4A @ 28V DC; UL File No. WOYR2.E44145;
add "/U" to end of part number to order UL mark on switch.
Single & double pole models recognized at 1A @ 125/250V AC, 1A @ 30V DC,
& 0.4VA @ 28V maximum; CSA File No. 023535-0-000;
add "/C" to end of part number to order CSA mark on switch.
2
) acceleration (tested in 6 right angled directions, with 3 shocks in each direction)
•
in) maximum
Miniature Pushbuttons
Terminal Base:
Polyester
www.nkkswitches.com
Series KB
12-02