UrgentAutomation sells surplus and refurbished products which are sourced through independent channels. All warranties and support, if applicable, are with UrgentAutomation and not the manufacturer. UrgentAutomation is not an authorized distributor or representative for the listed manufacturers and makes no representations as to any quality control performed by any listed manufacturer on the products. The products listed on this website may vary as to their country of origin; the accessories, and other items included with the product; and the language used on the packaging, the parts, and any related instructions or printed material related to the products. This website is not sanctioned or approved by any manufacturer or tradename listed. Designated trademarks, brand names and brands appearing herein are the property of their respective owners. Read More
Some of the products sold by UrgentAutomation may come with firmware installed on them. UrgentAutomation makes no representation as to your ability or right to download, obtain, or use any firmware provided by the product's manufacturer. To the extent you wish to use such firmware, it is your responsibility to comply with the terms of any applicable license or other such agreement related to the download, installation, or use of the firmware. UrgentAutomation makes no representation that the version of the firmware that is installed on any product it sells is appropriate for your needs or use. Further, UrgentAutomation does not sell, re-sell, or license software that may be needed to operate certain hardware and customers must obtain any necessary software licensing, maintenance, or upgrades from the manufacturer or other authorized source. To the extent any of the products sold by UrgentAutomation requires software for operation, you acknowledge that UrgentAutomation does not sell or license such software and that it is solely your responsibility to obtain the software or a proper license to use it from authorized sources. Read less
The Westinghouse JD4250F is a 4-pole circuit breaker frame. The frame is made of an insulating material, glass-polyester, which also guards the internal components of the breaker against environmental conditions such as moisture. The JD4250F has a rated current of 250 Amperes. The frame is rated to operate at a voltage of 600 Volts AC and at a frequency not exceeding 60 Hertz and not below 50 Hertz. Molded case circuit breakers using the JD4250F circuit breaker frame have an interrupting capacity of 65 Kilo Amperes Interrupt Capacity at 240 Volts AC, 35 Kilo Amperes Interrupt Capacity at 480 Volts AC, and 18 Kilo Amperes Interrupt Capacity at 600 Volts AC.
The Westinghouse JD4250F belongs in the category of circuit breakers with a J-frame within the C series family of molded case circuit breakers from Eaton Corporation. Circuit breakers and circuit breaker frames in this series are purposely designed to provide circuit protection in distribution systems powered from low voltages. The JD4250F is suitable when field installation is required. Since the JD4250F has a molded case, it is treated against fungus. The JD4250F is suitable for use in marine applications which require that circuit breaker with a molded case be supplied with special nameplate and plug-in adapter kits. While the calibrations for the JD4250F are made at a temperature of forty degrees Celsius, special calibration above this temperature range eg at 50 degrees Celsius is availed by Eaton Corporation upon request. The JD4250F, as with other members in molded case circuit breakers with a molded case and in the C Series group, equals or exceeds Federal Specifications Classification W-C-375b.