SCB25P15B NKK Switches

Snap Switch Pushbuttons Series SCB GENERAL SPECIFICATIONS Electrical Capacity 1 Resistive Load: 15A & 2 HP 125 or 250V AC for high capacity models Lamp Load: 5A 125V AC Other Ratings Contact Resistance: 15 milliohms maximum Insulation Resistance: 100 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 C Mechanical Life: 1,000,000 operations minimum Electrical Life: 50,000 operations minimum Travel: Pretravel .047 (1.19mm) Overtravel .040 (1.01mm) Differential .011 (0.27mm) Operating Temp Range: 40C through +85C (40F through +185F) Materials & Finishes Caps & Shrouds: Polycarbonate with glossy finish or PBT Plunger: Polyacetal or brass with nickel plating Bushing: Steel with zinc plating or glass fiber reinforced polyamide Case: Polyester Movable & Stationary Contacts: Silver alloy Terminals: Brass with silver plating Standards & Certifications UL: Internal snap switch is UL recognized. CSA: Internal snap switch is CSA certified. TYPICAL SWITCH ORDERING EXAMPLE SCB 2 5 P 15 A 4 CA Poles Caps & Shrouds 1 SPDT For Momentary 2 DPDT Terminals 3 .520 (13.2mm) Diameter Cap A .187 (4.75mm) Quick Connect For Momentary & Alternate Action Circuits * B .250 (6.35mm) Quick Connect 4 Round Cap & Shroud 5 ON (ON) Note: Contact factory for availability of (AT454 & AT455) screw lug and solder lug models. 6 ON ON 5 Rectangular Cap & Shroud * Available in Americas only (AT452 & AT453) ( ) = Momentary Bushings Colors Plastic (with DESCRIPTION FOR TYPICAL ORDERING EXAMPLE Caps Shrouds P momentary only) A Black A SCB25P15A-4CA S Steel B White B Round Red Cap with C Red Black Shroud Rating F Green 15 15A G Blue Plastic Bushing DPDT H Gray H ON-(ON) Circuit .187 (4.75mm) Quick Connect Terminals 15A Rating Note: Standard hardware is provided with caps. See Bushing detail for more information. www.nkkswitches.com C131 Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers TogglesSeries SCB Snap Switch Pushbuttons POLES & CIRCUITS Plunger Position Connected Terminals Throw & Schematics ( ) = Momentary Normal Down Normal Down Note: Terminal numbers are Pole Model Keyway Keyway actually on the switch. C 2 SCB15 ON (ON) 1 SP 1-2 1-3 SPDT 3 SCB16 ON ON 2 1 3 SCB25 ON (ON) SP with DP 1-2 1-2 1-3 1-3 SCB26 ON ON 2 switches 2 1 3 BUSHINGS Plastic P S (for Momentary only) Steel A = 11.2mm (10.0) .394 Momentary A 15.5mm Alternate Action (12.5) Dia (12.5) Dia .492 .492 (11.5) (11.5) .453 .453 Maximum Effective Panel Thickness: Maximum Effective Panel Thickness: .165 (4.2mm) without Shroud Momentary: .177 (4.5mm) without Shroud (1.5) (1.5) .060 .060 .157 (4.0mm) with Shroud .157 (4.0mm) with Shroud Alternate Action: .354 (9.0mm) Standard Hardware Provided with Caps Cap Option 3: AT504M Knurled Face Nut, AT508 Lockwasher, AT527M Hex Mounting Nut Cap Options 4 & 5: AT508 Lockwasher & AT527M Hex Mounting Nut TERMINALS .187 (4.75mm) .250 (6.35mm) A B Quick Connect Quick Connect (10.54) (9.78) (10.16) (8.38) .415 .385 .400 .330 (3.18) (4.06) .125 (4.75) (6.35) .160 .187 .250 Thk = (0.5) Thk = (0.81) .020 .032 C132 www.nkkswitches.com Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers Toggles