Copper RHH Cable

Copper RHH cable (Rubber-insulated, Heat-resistant, for Dry Locations) uses annealed copper conductors and cross-linked polyethylene insulation materials. It has good heat resistance and high reliability and is widely used in a variety of electrical systems. Its operating temperature can reach 90°C (dry environment only), the rated voltage is 600 volts, it meets ASTM B3, B8, and B787 standards, and is UL 44 certified, ensuring its safety and stability in various environments.

Application

Copper RHH cables are commonly used in power distribution systems in industrial and commercial buildings, especially in dry environments without moisture. They are resistant to high temperatures and corrosion and are suitable for internal wiring in power transmission and distribution systems, especially in places where conductors are required to have a certain degree of flexibility. For example, motors, control panels, distribution equipment and other electrical equipment in high temperature areas, cable connections for machines, tools and other electrical equipment, etc.

Certification

RHH cable is UL certified, with certification number UL-US-2561148-0. This certification can be verified through the official UL database, which provides full traceability and product authenticity. With this certification, customers can trust that the cable complies with all relevant NEC standards. It also guarantees reliable safety, durability, and regulatory compliance, even in the most demanding electrical installations.

Package

RHH RHW cable package

Production Line

Greater Wire is a RHH cable manufacturer with an intelligent and digital manufacturing environment. By seamlessly integrating cutting-edge technologies, the factory has successfully eliminated the errors and defects that may occur during the traditional manual assembly process. The transformation to digital manufacturing not only improves efficiency, but also reflects our commitment to providing customers with the highest reliability products. The smart factory framework ensures a streamlined and error-free production process, minimizes differences caused by human factors, and improves unprecedented precision. The factory adopts precise automated inspection mechanisms and strictly implements quality control. Products are fully inspected from the beginning to the end of the manufacturing process. With the application of digital intelligent image detection and laser technology, each product meets the strict standards set by the company. The commitment to quality also extends to our detection accuracy, and the accuracy of automated production equipment has reached 0.002 mm, exceeding the industry benchmark.

customer

wire and cable manufacturer

Partner

Greater Wire Partner

FAQ

Q: What does RHH mean on the wire?

A: RHH is Rubber-insulated, Heat-resistant, and intended for use in dry locations.

Q: What is the difference between RHW and RHH?

A: The difference between RHW and RHH is their intended use environment and ability to withstand moisture:
1. RHH: Rubber-insulated, heat-resistant, for use in dry locations, typically up to 90°C (194°F) in dry conditions.
2. RHW: Rubber-insulated, heat-resistant, wet locations, typically 75°C (167°F) in wet conditions and up to 90°C (194°F) in dry conditions. Specially manufactured to be waterproof, suitable for underground or outdoor installations where exposure to moisture is possible.

Q: Where is RHH wire used?

A: RHH wires are primarily used in dry environments where the wires need to withstand high temperatures. Examples include wiring in machine tools, heavy equipment, and industrial machinery where the wires are exposed to heat but not water.

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RHH cable certification

Conductor		Insulation Thickness (mils)	Nominal 0.D.(mils)	Approx.Net Wt.Per 1000'(lbs.)	Allowable Ampacities+
Size (AWG or kcmil)	No.of strands	Insulation Thickness (mils)	Nominal 0.D.(mils)	Approx.Net Wt.Per 1000'(lbs.)	60℃	75℃	90℃
14*	7	30	130	24	15	15	15
12*	1	30	141	18	20	20	20
10*	1	30	147	26	30	30	30
12*	7	30	162	37	15	15	15
10*	7	30	171	40	20	20	20
8	7	45	232	65	30	30	30
6	7	45	268	96	40	50	55
4	7	45	311	147	55	65	75
3	7	45	337	183	70	85	100
2	7	45	367	227	85	100	115
1	19	55	435	291	95	115	130
1/0	19	55	477	363	110	130	145
2/0	19	55	521	453	125	150	170
3/0	19	55	571	565	145	175	195
4/0	19	55	627	706	165	200	225
250	37	65	695	835	195	230	260
300	37	65	748	995	215	255	290
350	37	65	798	1155	240	285	320
400	37	65	843	1314	260	310	350
500	37	65	927	1633	280	335	380
600	61	80	1033	1965	320	380	430
750	61	80	1102	2282	350	420	475
1000	61	80	1284	3229	455	545	615

UL44 - RHH cable