UL 3321 XLPE Insulated Hook-up Wire (150°C / 600V)

Enhanced Thermal Stability for Professional Industrial Applications

CableApex’s UL 3321 wire features advanced XLPE (Cross-linked Polyethylene) insulation, elevating your electrical systems to a higher level of safety and durability. With a 150°C temperature rating and 600V voltage capacity, this wire is the ideal upgrade for demanding environments where standard PVC or lower-temp XLPE wires fail. Built with 99.99% high-purity oxygen-free tinned copper, UL 3321 guarantees exceptional electrical conductivity and long-term reliability against oxidation.

Technical Specifications (UL File E333030)

Style: UL 3321
Insulation Material: Cross-linked Polyethylene (XLPE)
Temperature Rating: 150°C (302°F)
Voltage Rating: 600V AC
Flame Test: Passes UL VW-1 and CSA FT1 vertical flame tests.
Key Benefit: Superior physical toughness; resistant to melting during high-temperature soldering and operation.

UL 3321 Technical Parameter Table

Gauge (AWG)	Conductor Stranding (No./mm)	Insulation Thickness (mm)	Approx. Outer Diameter (mm)	Max Resistance at 20°C (Ω/km)
22 AWG	17/0.16	0.76	2.30	59.4
18 AWG	34/0.18	0.76	2.80	23.2
14 AWG	41/0.25	0.76	3.50	8.96
10 AWG	105/0.25	0.76	4.70	3.54

Why Partner with CableApex?

15-Year Industrial Heritage: Utilizing over a decade of expertise and our 20-acre production base to ensure every meter meets global standards.
99.99% Copper Guarantee: We exclusively use high-purity OFC copper to maximize conductivity and minimize energy loss.
Traceable UL Certification: All shipments are verifiable under UL File E333030, providing full confidence for international compliance.
Factory-Direct Support: Gain competitive pricing and specialized technical assistance directly from the source in Yangzhou.