Leviton 1257 20 Amp, 120/277 Volt, Toggle Double-Throw Ctr-OFF Momentary Contact Single-Pole AC Quiet Switch, Extra Heavy Duty Spec Grade, Grounding, Back & Side Wired - BROWN

Leviton 1257 20 Amp, 120/277 Volt, Toggle Double-Throw Ctr-OFF Momentary Contact Single-Pole AC Quiet Switch, Extra Heavy Duty Spec Grade, Grounding, Back & Side Wired - BROWN

Leviton

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LEVITON-1257
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Leviton 1257 20 Amp, 120/277 Volt, Toggle Double-Throw Ctr-OFF Momentary Contact Single-Pole AC Quiet Switch, Extra Heavy Duty Spec Grade, Grounding, Back & Side Wired - BROWN

20 Amp, 120/277 Volt, Toggle Double-Throw Ctr-OFF Momentary Contact Single-Pole AC Quiet Switch, Extra Heavy Duty Spec Grade, Grounding, Back & Side Wired - BROWN



AC Horsepower Ratings
HP Rating: 1HP-120V 2HP-240V-277V
Max. Amperage: 16 Amp

Electrical Specifications
Amperage: 20 A
Dielectric Voltage: Withstands 1500V for 1 minute
Endurance: 50,000 cycles minimum
Grounding: Self-Grounding
Overload UL20 Test: 100 cycles of OL at 4.8 times rated current
Temperature Rise: Maximum 30 degrees C rise
Voltage: 120/277 VAC

Environmental Specifications
Flammability: Rated V-2 per UL 94
Operating Temperature: -40¡C to 65¡C

Material Specifications
Base Material: Thermoplastic
Color: Brown
Contact Material: Silver Alloy
Cover Material: Thermoplastic
Ground Clips: Brass
Grounding Screw: Brass 8-32
Strap Material: Steel
Terminal Screws: Brass 8-32
Toggle: Polycarbonate

Mechanical Specifications
Product ID: Ratings are permanently marked on device
Screw Terminal Torque: 14-18 in-lbs
Terminal Accom.: 14-#10 AWG back wired; #14-#12 AWG side wired
Terminal ID: Brass-Hot Black-Hot White-Neutral Green-Gnd
Termination: Back or Side Wire

Product Features
Body Material: Thermoplastic
Color: Brown
Device Type: Toggle Switch
Feature: Momentary Contact CTR OFF
Function: Single-Pole
Grade: Extra Heavy-Duty Industrial Specification Grade
Grounding: Self-Grounding
HP Rating: 1HP-120V 2HP-240V-277V
Strap Material: Steel
Voltage: 120/277 VAC

Standards and Certifications
ANSI: C-73
CSA C22.2 No. 111: File #152105
NEMA: WD-1 & WD-6
NOM: 057
RoHS: Compliant
UL Fed Spec WS896E: File #E7458
UL Standard: UL 20
Warranty: 10-Year Limited


AC Horsepower Ratings
HP Rating: 1HP-120V 2HP-240V-277V
Max. Amperage: 16 Amp

Electrical Specifications
Amperage: 20 A
Dielectric Voltage: Withstands 1500V for 1 minute
Endurance: 50,000 cycles minimum
Grounding: Self-Grounding
Overload UL20 Test: 100 cycles of OL at 4.8 times rated current
Temperature Rise: Maximum 30 degrees C rise
Voltage: 120/277 VAC

Environmental Specifications
Flammability: Rated V-2 per UL 94
Operating Temperature: -40¡C to 65¡C

Material Specifications
Base Material: Thermoplastic
Color: Brown
Contact Material: Silver Alloy
Cover Material: Thermoplastic
Ground Clips: Brass
Grounding Screw: Brass 8-32
Strap Material: Steel
Terminal Screws: Brass 8-32
Toggle: Polycarbonate

Mechanical Specifications
Product ID: Ratings are permanently marked on device
Screw Terminal Torque: 14-18 in-lbs
Terminal Accom.: 14-#10 AWG back wired; #14-#12 AWG side wired
Terminal ID: Brass-Hot Black-Hot White-Neutral Green-Gnd
Termination: Back or Side Wire

Product Features
Body Material: Thermoplastic
Color: Brown
Device Type: Toggle Switch
Feature: Momentary Contact CTR OFF
Function: Single-Pole
Grade: Extra Heavy-Duty Industrial Specification Grade
Grounding: Self-Grounding
HP Rating: 1HP-120V 2HP-240V-277V
Strap Material: Steel
Voltage: 120/277 VAC

Standards and Certifications
ANSI: C-73
CSA C22.2 No. 111: File #152105
NEMA: WD-1 & WD-6
NOM: 057
RoHS: Compliant
UL Fed Spec WS896E: File #E7458
UL Standard: UL 20
Warranty: 10-Year Limited

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