Industrial Grade, Fashion Receptacles Construction: Base Material: Rynite ThermoplasticFace Material: Nylon Mounting Yoke: Steel (zinc plating) Ground Terminal: BrassTerminal Screws: BrassGround Screw: Brass (green)Technical Specs: Dielectric Voltage: Withstands 2000V Minimum Temp. Rise: Max 30 deg. C temperature rise at full rated current after 50 cycles of overload at 150% of rated current with direct current Max Working Voltage: 250VFlammability: UL 94 V2Operating Temperature: Maximum continuous 60 deg C- Minimum -40 deg C (w/o impact)Certifications: Standards: Complies with NEMA WD-1 Heavy Duty and WD-6 requirementsUL Certification: File E2258, Guide RTRT 4.20 L. 1.70 W. 1.40 H.