Features Available Ranges (Amp) - 20, 30 & 60 Safety Grade" Flame rated - UL94-VØ High-Temp Plastic Housings - Aluminum Easy-to-Wire Rear loaded interiors Single Rated Safety - 20A External Cable Clamp

Specifications (Click here to view Specs in an Acrobat File)

Performance - Electrical
Dielectric Voltage Withstand	3000 Volts
Max. Working Voltage	600 volts RMS (minimum creepage distance and minimum clearance per UL 840)
Circuit Interrupting/Load Breaking	UL listed and CSA certified for circuit interrupting at full rated current.
Temperature Rise	Max. 30º C temperature rise at full rated current after 50 cycles of overload at 150% rated current at .75-PF
Shrouded Contacts	Complies with California Code Title 8, Art. 51, S2510.7(b) for devices exceeding 300 VAC
Horsepower	Per NEC 430-151 ratings (non-interrupting)
Performance - Mechanical
Impact Resistance	Per UL1682 Paragraph 34
Cord Accommodation	Round portable service cords per UL Std. 62 & CSA C22.2 No. 49. 1
Terminal Identification	In accordance with UL1682
Cable Pull Out Force	In accordance with UL1682
Product Identification	Identification label and name per UL 1686
Lockout/Tagout	Lockout/Tagout hole on 30/50A DuraGard plug complies with OSHA Reg. 29 CFR 1910.147 (V0 30 & 50A plugs only)
Performance - Environmental
Moisture Resistance	Per UL1682 Paragraph 49. Watertight/ flap screw cover on receptacle.
Flammability	VØ / 5VAper UL94 (DuraV also 5VAin some apps.)
Operating Temperatures	V0* 5VA Metal* Maximum 95 C 130 C 130 C Continuous: (203 F) (266 F) (266 F) Minimum -29 C -29 C -40 C W/O Impact: (-200 F) (-20 F) (-40 F)
Chemicals	Resists standard industrial hydrocarbons, acids, bases, and solvents
Materials
Contact Carrier Interior	Thermoset
Housing, Gland Nut	Cast Aluminum or Brass
Contacts: Pins & Sleeves	Brass
Hinge Pins (Receptacle)	Stainless Steel
Terminals	Brass
All Hardware	Stainless Steel
Gland Friction Washer	Brass or Aluminum
Cable Clamp Bushing	Neoprene

Ordering Information
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				Male Plug		Female Connector		Female Receptacle		Reverse Service
		Voltage	Plug Safety Polarization	Alumium.	Cast Brass	Alumium.	Cast Brass	Alumium. W/Box	Cast Brass W/Box	Alumium	Cast Brass	Alumium W/Box FDWS-62	Cast Brass W/Box 3731
2 P/ 3 W	15 Amp	25OV		3720U-2	3720BU-2	3913U-2	3913BU-2	3743U-2	3763U-2	3789U-2	3789BU-2	3776U-2	3779U-2
		277 VAC		3720U-3	3720BU-3	3913U-3	3913BU-3	3743U-3	3763U-3	3789U-3	3789BU-3	3776U-3	3779U-3
		48O VAC		3720U-4	3720BU-4	3913U-4	3913BU-4	3743U-4	3763U-4	3789U-4	3789BU-4	3776U-4	3779U-4
		60O VAC		3720U-5	3720BU-5	3913U-5	3913BU-5	3743U-5	3763U-5	3789U-5	3789BU-5	3776U-5	3779U-5
	20 Amp	250 VAC		3720	3720B	3913	3913B	3743	3763	3789	3789B	3776	3779
		125 V		3720U-1	3720BU-1	3913U-1	3913BU-1	3743U-1	3763U-1	3789U-1	3789BU-1	3776U-1	3779U-1
	30 Amp	250 VAC		3750	3750B	3933	3933B	3753	3773	3809	3809B	3796	3799
3 P/ 4 W	10 Amp	600 VAC		3730	3730B	3914	3914B	3744	3764	3790	3790B	3777	3780
	15 Amp	250 VAC		3730	3730B	3914	3914B	3744	3764	3790	3790B	3777	3780
	20 Amp	600 VAC		3760	3760B	3934	3934B	3754	3774	3810	3810B	3797	3800
	30 Amp	250 VAC		3760	3760B	3934	3934B	3754	3774	3810	3810B	3797	3800

Dimensions

Plugs A B C FS/FD 20 Amp 3 5/8" 2" 2 1/2" 30 Amp 3 3/4" 21/4" 2 3/8" 60 Amp 8" 2 1/2" 3 3/4"	Connectors D E FS/FD 20 AMP 4" 1 7 /8" 30 AMP 4 5/8" 2 1/8" 60 AMP 10 3/8" 3 1/2"
> Receptacles F G H I J K M FS/FD 20 AMP 4 1/8" 31/4" 2 5/8" 1 7/8" 1 1/8" 2 1/4" 2 1/2" 30 AMP 4 1/8" 3 1/4" 2 5/8" 1 7/8" 1 3/8" 2 1/4" 2 5/8" 60 Amp 3 1/2" 2 7/8" 3 1/2" 2 7/8" - 2 1/2" 6"