UL 3820 Hook-Up Wire

Hook-Up Wire – 1000V Rated, 125°C XLPE Insulated Wire for High-Temperature Applications

Application

UL 3820 wire is designed for internal wiring in electrical and electronic equipment, including appliances, switchgear, industrial machinery, and control panels. With a high voltage rating of 1000 V and a temperature tolerance up to 125°C, it is ideal for applications requiring thermal stability, chemical resistance, and electrical reliability.

Technical Specifications

Standards:
UL 758 (Style UL 3820)
CSA C22.2 No. 210
Rated Voltage: 1000V AC / DC
Temperature Rating:
Operating: -40°C to +125°C
Max conductor temperature:+125°C
Flame Test:
UL VW-1 flame test
CSA FT1 / FT2
Spark Test / Dielectric Strength:
Up to 7.5 kV, based on conductor size
Bending Radius:
Flexing: 10 × outer diameter
Fixed: 5 × outer diameter

Construction

Conductor: Stranded, annealed bare or tinned copper
Insulation: Cross-linked Polyethylene (XLPE)
Thermoset insulation, moisture- and heat-resistant
Meets UL 1581, Class 43

Key Features

High Voltage Rating: Handles up to 1000V
High Temperature Resistance: Rated for 125°C continuous use
Durable XLPE Insulation: Resistant to abrasion, oil, chemicals, and moisture
Flame Retardant: UL FT2
Excellent dielectric performance and dimensional stability
RoHS and REACH compliant

Typical Applications

Internal wiring of:
Industrial panels and power supplies
Motors, transformers, and HVAC systems
Appliances and home electronics
Renewable energy systems
Automotive under-hood and power systems
Suitable for high-voltage and high-heat environments

AWG	Metric Cross Sectional Area (Sq.mm)	No of Strand / Strand Diameter (mm)	Approx. Diameter of Conductor (mm)	Average Insulation Thickness (mm)	Nominal Cable Diameter (Approx)
26	0.128	7/0.16	0.485	0.77	2.10
24	0.205	7/0.20	0.61	0.77	2.20
22	0.324	7/0.25	0.76	0.77	2.40
20	0.519	7/0.31	0.95	0.77	2.50
18	0.823	16/0.26	1.20	0.77	2.80
16	1.317	26/0.26	1.55	0.77	3.10
14	2.08	41/0.26	1.90	0.77	3.50
12	3.31	65/0.26	2.40	0.77	4.00
10	5.26	105/0.26	3.05	0.77	4.60
8	8.367	168/0.26	3.90	1.15	6.20
6	13.3	266/0.26	4.85	1.15	7.20
4	21.15	420/0.26	6.10	1.15	8.50
2	33.62	665/0.26	7.65	1.15	10.00
1	42.41	882/0.26	8.50	1.40	11.30
0	53.49	1029/0.26	9.65	1.40	12.45
00	67.43	1330/0.26	10.85	1.40	13.65
000	85.01	1715/0.26	13.15	1.40	16.00
0000	107.20	2205/0.26	15.95	1.40	18.75

Note: Dimension mention on above table are indicative only.