Determining whether foreign defendants may be subjected to in personam jurisdiction in this state involves a two-pronged test. First, the Court must determine whether jurisdiction is proper under the North Carolina “long-arm” statute, G.S. 1-75.4. Second, the Court must determine whether the exercise of jurisdiction violates due process of law. See Dillon v. Funding Corp., 291 N.C. 674, 231 S.E. 2d 629 (1977). Our Supreme Court has stated that the North Carolina “long-arm” statute provides for in personam jurisdiction to the full extent permitted by the United States Constitution. Id. Defendant does not deny that there are statutory grounds for the exercise of jurisdiction. Therefore, the only question before this Court is whether the North Carolina court’s assertion of jurisdiction over defendant is consistent with the Due Process Clause of the Fourteenth Amendment.
Generally, due process requirements demand that defendant have “certain minimum contacts with [the forum] such that the maintenance of the suit does not offend ‘traditional notions of fair play and substantial justice.’ ” International Shoe Co. v. Washington, 326 U.S. 310, 316, 90 L.Ed. 95, 102, 66 S.Ct. 154, 158 (1945). Within the broad principle of International Shoe, different stand*461ards apply in cases where the contact with the state gives rise to the cause of action and where, as in the instant case, plaintiffs claims arise totally outside of the state. Wolf v. Richmond Cty. Hosp. Authority, 745 F. 2d 904 (4th Cir. 1984), cert. denied, --- U.S. ---, 88 L.Ed. 2d 68, 106 S.Ct. 83, 54 U.S.L.W. 3224 (1985); accord, Dollar Sav. Bank v. First Sec. Bank of Utah, 746 F. 2d 208 (3rd Cir. 1984). The sufficiency of contacts threshold is elevated when the cause does not arise in the forum state or derive from the foreign corporation’s transactions in the state. Id. The United States Supreme Court has characterized the test applied when a plaintiff s claim does not arise out of or relate to a defendant’s activities in the forum state as whether the contacts are of a “continuous and systematic” nature. Wolf, 745 F. 2d at 909, citing Helicopteros Nacionales de Columbia, S.A. v. Hall, 466 U.S. 408, 80 L.Ed. 2d 404, 104 S.Ct. 1868 (1984). Thus, if Burnham conducts “continuous and systematic” corporate activities within this state, those activities are enough to make it fair and reasonable to subject Burnham to proceedings in personam in North Carolina, even though the cause of action arises out of an alleged malfunction of a boiler manufactured in Pennsylvania and installed in Ohio. See Perkins v. Benguet Consolidated Mining Co., 342 U.S. 437, 96 L.Ed. 485, 72 S.Ct. 413 (1952). Whether the type of activity conducted within the state is adequate to satisfy the due process requirements depends upon the facts of the particular case. Dillon, 291 N.C. at 679, 231 S.E. 2d at 632, citing Perkins, supra.
The relevant facts in the instant case are as follows: Burn-ham is a New York corporation with its principal place of business in New York. Burnham is not authorized to do business in North Carolina nor does it have an agent for service of process in this state. Burnham has never owned or leased any real property in North Carolina and has never maintained an office here. Burn-ham has no bank account or phone listings in this state. In 1984, Burnham sold approximately $520,000 worth of boilers to North Carolina customers accounting for about one-half percent of Burn-ham’s total boiler sales for the year. These sales were solicited by independent contractors who act as sales representatives for Burnham and other manufacturers. These representatives are paid by commission only. Burnham does not pay workers’ compensation or unemployment charges on their behalf. In addition Burn-ham lists certain offices of these representatives as places *462through which customers can order repair parts from Lancaster, Pennsylvania. All orders for boilers placed through the representatives are accepted in either New York or Pennsylvania, and payments are mailed directly to a lock box in Pennsylvania. The boilers are shipped by common carrier f.o.b. Lancaster, Pennsylvania and are subject to a twenty-year limited warranty valid within the 48 contiguous United States. At least since 1978, Burn-ham has placed advertisements in several national magazines which reach North Carolina. Finally, a wholly owned subsidiary of Burnham, which is engaged in the business of greenhouse construction, is authorized to do business in North Carolina.
We find that these contacts with North Carolina are not so “continuous and systematic” as to warrant the exercise of in per-sonam jurisdiction in this case. First, “[w]hen a subsidiary of a foreign corporation is carrying on business in a particular jurisdiction, the parent is not automatically subject to jurisdiction in the state. Thus, if the subsidiary’s presence in the state is primarily for the purpose of carrying on its own business and the subsidiary has preserved some semblance of independence from the parent, jurisdiction over the parent may not be acquired on the basis of the local activities of the subsidiary.” 4 Wright and Miller, Federal Practice and Procedure: Civil § 1069, at 255-56 (1969); accord, Mills, Inc. v. Transit Co., 265 N.C. 61, 143 S.E. 2d 235 (1965). Burnham’s subsidiary constructs greenhouses. The subsidiary’s books are kept separate from those of Burnham and each files a separate tax return. The sales representatives who solicit orders for Burnham products in North Carolina do not solicit orders for the subsidiary. There is no evidence that Burnham and the subsidiary are not separate and independent, and we thus determine that the subsidiary’s presence in this state is not to be considered as a basis for asserting jurisdiction over Burnham.
The national advertising that reaches North Carolina is a factor to be considered; however, it alone does not constitute sufficient contacts to support jurisdiction. Marion v. Long, 72 N.C. App. 585, 325 S.E. 2d 300, disc. rev. denied, 313 N.C. 604, 330 S.E. 2d 612 (1985). The standard of “continuous and systematic” general business contacts requires more. Nor do we find the limited warranties sufficient to meet this elevated standard.
*463Finally, though it is a close question, we do not believe that Burnham’s system of employing independent sales representatives and the resultant $520,000 in sales are sufficient to support jurisdiction. In reaching this decision we rely on the following cases. Putnam v. Publications, 245 N.C. 432, 96 S.E. 2d 445 (1957), was a civil action for libel and invasion of privacy in which the defendant, a magazine and newspaper publisher, delivered its magazines by common carrier f.o.b. locations outside North Carolina to 18 independent wholesale dealers in this state for resale. This business transaction included a provision for credit to the dealers for unsold copies. The defendant also employed sales promotion representatives who made several business trips within this state. The court held that these were insufficient contacts for the purpose of in personam jurisdiction.
In Keeton v. Hustler Magazine, Inc., 465 U.S. 770, 79 L.Ed. 2d 790, 104 S.Ct. 1473 (1984), also a libel action, the defendant’s connection with the forum state consisted of the sale of some 10,000 to 15,000 copies of Hustler Magazine in that state each month. We take judicial notice that the dollar volume of these sales for one year would roughly equal the $520,000 earned by Burnham in North Carolina in 1984. The Court in Keeton drew the distinction between contacts sufficient to support jurisdiction when the cause of action arises out of defendant’s activity being conducted in the forum state — sometimes referred to in the cases and literature as “specific jurisdiction” — and when the cause of action is unrelated to those activities giving rise to the claim — sometimes referred to as “general jurisdiction.” The Court has indicated in other cases that “specific jurisdiction” requires a minimum contacts analysis, whereas “general jurisdiction” requires the heightened analysis of “continuous and systematic” general business contacts. See generally, Helicopteros, 466 U.S. 408, 80 L.Ed. 2d 404, 104 S.Ct. 1868 (1984). In this case the Court concluded that the alleged libelous material arose out of magazine sales in the forum state, and that the contacts were sufficient to support this “specific jurisdiction” over the defendant. The Court noted however that the sale of the 10,000 to 15,000 magazines each month “may not be so substantial as to support jurisdiction over a cause of action unrelated to those activities.” 465 U.S. at 779, 79 L.Ed. at 801. The Court, in comparing these contacts with those in Perkins, stated:
*464In Perkins, the [defendant] corporation’s mining operations, located in the Philippine Islands, were completely halted during the Japanese occupation. The president, who was also general manager and principal stockholder of the company, returned to his home in Ohio where he carried on “a continuous and systematic supervision of the necessarily limited wartime activities of the company.” 342 US, at 448, 96 L Ed 485, 72 S Ct 413, 47 Ohio Ops 216, 63 Ohio L Abs 146. The company’s files were kept in Ohio, several directors’ meetings were held there, substantial accounts were maintained in Ohio banks, and all key business decisions were made in the State. Ibid. In those circumstances, Ohio was the corporation’s principal, if temporary, place of business so that Ohio jurisdiction was proper even over a cause of action unrelated to the activities in the State.
Id. at fn. 11.
Finally, in Helicópteros, the defendant made purchases in Texas totalling in excess of $4,000,000 (including approximately 80% of its helicopter fleet), negotiated the contract in that state, and sent its pilots to Texas for training. The Court held, however, that these contacts were not sufficient to subject the defendant to in personam jurisdiction in that state pursuant to a wrongful death action relating to a helicopter crash in South America. These cases lead us to believe that the use of independent contractors as sales representatives and the resultant $520,000 in sales are not sufficient to satisfy the “continuous and systematic” standard necessary for asserting in personam jurisdiction.
Based upon the reasoning set forth above, we conclude that the due process clause requires more than the aggregate contacts presented in evidence in this case. Thus, we find that the trial court erred in denying defendant’s motion to dismiss for lack of in personam jurisdiction.
Reversed.
Judge Eagles concurs.
Judge Phillips dissents.