Circuit breakers are switches designed to protect against excess current, protecting from its damage while being more efficient than fuses as they can be reset when any issue that tripped it has been addressed. They are also more durable, featuring arc chutes to shield them from heat and debris while being immersed in mineral oil which acts as an insulator.
Molded circuit breakers
Molded circuit breakers (MCCBs), are essential components of electrical distribution systems, used to protect used circuits against overloads and faults by switching off power when necessary. With various models designed to suit diverse applications, MCCBs offer essential protection. Used circuit breaker for sale at surplusrecord.
These switches can be operated manually and feature either thermal or electronic overcurrent trippers for overload protection. Their molded plastic casing provides insulation and protection to their operating mechanisms and arc extinguishing chambers within, giving these switches the capability of handling high current capacities that make them perfect for commercial or industrial electrical systems alike. MCCBs come in various configurations, but their operation remains consistent. Their main advantage over conventional molded breakers lies in their higher current capacities: typically 15 to 2,500 amperes maximum rating.
As well as protecting capacitor banks in commercial and industrial electrical systems, these devices are also often employed to correct power factor. By lowering line currents and helping avoid utility fees from being charged by electricity providers, power factor correction devices reduce power bill costs significantly and can even help safeguard welding machines that draw high current.
There are various kinds of molded circuit breakers, each designed for specific tasks. For instance, type C breakers can handle up to 10x their rated current before trippin; making them suitable for industrial environments that rely heavily on fans and motors. Meanwhile, type D MCCBs offer greater fault current tolerance, withstanding up to 20x their rating for up to 0.04-5 seconds before they trip off.
Surplusrecord circuit breakers
Surplusrecord provides one of the industry’s most extensive selections of low voltage molded case circuit breakers for industrial, commercial and OEM use. Their products feature availability, ease of installation and quality. Furthermore, Siemens ITE MCBs are certified to withstand high temperatures as well as provide thermal-magnetic overload protection.
No matter whether you need Surplusrecord MCBs for an electrical upgrade project or to replace an outdated Siemens breaker in an existing panel, purchasing them from a wholesale distributor is your best bet. These businesses specialize in providing contractors and electricians with electrical equipment and can help find exactly the product needed for your application; additionally they can assist with bulk orders or special requirements.
Home improvement stores can also be an excellent place to find Siemens breakers. Most offer dedicated electrical departments with a selection of residential-grade Siemens breakers available for purchase. Furthermore, these stores can help find you the ideal type of breaker unit based on your specific requirements.
Wholesale distributors like Grainger and Rexel provide excellent options for buying Siemens breakers at competitive pricing with added services such as next-day delivery and technical support, plus user-friendly online platforms that make selecting the ideal breaker simple.
Surplusrecord vacuum circuit breakers
Surplusrecord vacuum circuit breakers produced a wide array of industrial products and equipment. Its electrical products, particularly circuit breakers, helped ensure the safety of power systems by rapidly isolating any faulty sections in an electrical circuit. Circuit breakers also played an important role in protecting residential, commercial and industrial buildings against fires caused by short circuits or other electrical system issues that might arise.
When replacing Westinghouse breakers in a panel, the first step should be ensuring they fit the original size of their opening in the panel box. This will help avoid buying new fuses, wires or components not compatible with its size and fit – and may save on purchasing extra fuses, wires or components separately for each new circuit breaker you buy from other manufacturers like Eaton Square D or Cutler-Hammer! Many Westinghouse breakers may even work seamlessly alongside those from these other makers such as Eaton. Square D and Cutler-Hammer!
Westinghouse molded case circuit breakers can handle up to 600 amps and 600 volts. With three poles that operate similarly to single-pole breakers, its plastic frame provides protection from surges across one or more conductors.
EPRI developed this maintenance guide to equip utilities with practical information they can use to improve their maintenance practices of Westinghouse DS model low-voltage air circuit breakers. The document draws upon utility procedures, vendor manuals and inspection/test data collected over time; in turn this guides provides maintenance recommendations, inspection/test guidance as well as renewal parts lists that help minimize plant downtime costs while mitigating risks to other equipment in their plant.
Hard-to-find reconditioned air circuit breakers
Some systems and equipment rely on specific brands or models of circuit breakers, making replacement easier when knowing their brand and catalog number – this information can be found either on the breakers themselves or within their panel box. Knowing this will ensure you obtain an exact match when searching for replacement breaker replacements – saving both time and money!
Reconditioned breakers are an economical solution for facility managers looking to upgrade their power switchgear without spending the full cost of new hardware. Not only are these breakers less environmentally-harmful than their counterparts but they are backed by the same warranty coverage.
Finding an established firm with experience is the key to successful reconditioning jobs. They should have worked with various power breaker manufacturers, have an in-house quality control process and testing program according to ANSI/IEEE standards, plus have trained and certified technician staff available on staff.
Reconditioning a breaker involves performing a comprehensive disassembly, component cleaning and analysis, reassembly, final inspection and test, system communications installation for trending/usage data gathering; this feature should also be added by any company providing power breaker reconditioning services to commercial/industrial facilities.
