Ground fault is simply a short in the system. It occurs when current going out on ungrounded phase comes back on grounded path. To avoid shock hazards, current going out any one phase must come back on another phase or neutral. Ground Fault Protection A ground fault protection device is required to protect from …
Circuit Breaker Tester: Clamping Ammeter Circuit breakers that trip every time they’re reset may be overloaded. In order to diagnose a circuit breaker overload you can test the circuit breaker by using a clamping ammeter. You can use this circuit breaker tester to check overloads and shorts that are in progress. They determine whether the …
How to Replace a Circuit Breaker Typically circuit breakers will not need to be replaced. Unlike a fuse, a circuit breaker is designed to reset. On occasion a circuit breaker may break or malfunction resulting in the need replace it with a new breaker. Most residential homes have a main circuit breaker and separate branch …
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Let’s talk about the most common circuit breaker problems people have Miswiring – Circuit Breaker Troubleshooting Electricity Blinks or Flickers – Circuit Breaker Troubleshooting Electrical Load – Circuit Breaker How to Reset a Tripped Circuit Breaker Circuit Overload – Tripped Circuit Breaker Short Circuit – Tripped Circuit Breaker Why Does the Circuit Breaker Trip While Operating Certain …
Replacing an existing circuit breaker? Simply look at the label. Typically, the part number is displayed on the primary label of the breaker, usually by the manufacturer logo. Look for one of the following markings: Part Number or P/N Catalog Number or Cat # Mfr Part Number or MPN In most cases other markings like …
What is mounting hardware? A hardware kit, “link kit” or “finger kit”, is necessary to mount circuit breakers into most panelboards. The hardware kit makes the electrical connection between the circuit breaker and the vertical bus. Most hardware kits include everything that is needed to mount the circuit breaker safely into the specified panel including …
Tandem breakers are known by different names, such as duplex, slimline, twin, half-height, half-inch, double and wafer breakers. Some may confuse tandem breakers with two-pole circuit breakers, however, tandem breakers do not get connected to two different poles at a panelboard and do not have a common trip or handle tie for simultaneous disconnecting of two poles — unlike a two-pole circuit breaker.
We are overstocked on dry-type transformers We need to clear out space immediately so we are running a transformers clearance sale! For a limited time, we are offering the following refurbished 480-208Y/120 Dry-Type transformers at liquidation prices. Check out the list below for pricing: [table id=4 /] *All sales final. This offer is subject to …
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Reading Time: 3 minutes Hey there Contractors and fellow Service Professionals! Today we are covering the last item of the PLC series, the Allen Bradley 2711P-RDT10C Series B PLC. This is a 10.4 inch display module with touchscreen and 18-bit color graphics. This standard display module is a replacement part for PanelView Plus graphics terminal. …
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Reading Time: 2 minutes Hey there Contractors and fellow Service Professionals! Today we are covering the Allen Bradley 1785-L80B Series E PLC. This is a PLC 5/80 Controller with 100K words SRAM user memory. This programmable controller is another central part of each control system based on the PLC 5 series. It connects local, extended, …
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Reading Time: 2 minutes Hey there Contractors and fellow Service Professionals! Today we are covering the Allen Bradley 1785-L40E Series E PLC. This is an EtherNet/IP Controller with 48K words SRAM user memory. The Ethernet controller embedded TCP/IP communication capabilities allow to communicate with other Ethernet PLC 5 processors and host computers. The PLC 5/40 …
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Reading Time: 2 minutes Hey there Contractors and fellow Service Professionals! Today we are covering the Allen Bradley 1769-L32E Series A PLC. This is a CompactLogix EtherNet Processor with 750 KB user memory. The CompactLogix controller is always the leftmost module in the system. The controller must be within four modules of the system power …
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Reading Time: 2 minutes Hey there Contractors and fellow Service Professionals! Today we are covering the Allen Bradley 1764-LRP Series C PLC. This is a MicroLogix 1500 Processor with RS-232 communication port and 14 KB words user memory. Time based or event triggered data logging. This 1764-LRP enhanced controller provides 14 KB words of user …
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Reading Time: 2 minutes Hey there Contractors and fellow Service Professionals! Today we are covering the Allen Bradley 1756-L62S Series B PLC. This is a GuardLogix Logix5562S Processor with 4 MB standard memory and 1 MB safety memory. The 1756-L62S Logix 5562S GuardLogix controller is a ControlLogix controller that also provides safety control. During development, …
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Reading Time: 2 minutes Hey there Contractors and fellow Service Professionals! Today we are covering the Allen Bradley 1756-L61 Series B PLC. This is a ControlLogix Logix5561 Processor with 2 MB user memory. This 1756-L61 controller comes with one RS-232 serial built-in communication port. The connections supported is 250 max. The 1756-L61 Logix 5561 controller …
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Reading Time: 2 minutes Hey there Contractors and fellow Service Professionals! Today we are covering the Allen Bradley 1756-IF8 Series A PLC. This is a ControlLogix Current/Voltage Analog Input Module with 8 Poles (36-Pin). Chassis mounting type. When this 1756-IF8 ControlLogix is operating in 2-Channel High Speed mode, only channels 0 and 2 can be …
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Reading Time: 2 minutes Hey there Contractors and fellow Service Professionals! Today we are covering the Allen Bradley 1747-L541 Series C PLC. This is a SLC 500 SLC 5/04 CPU Processor. It has a user memory of 16K words total, which if we break it down is: 12K words for data or program and 4K …
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Reading Time: 2 minutes Hey there Contractors and fellow Service Professionals! Today we are covering the Allen Bradley 1746-P2 Series C PLC. This is a power supply, which we all know is the heart PLCs. Needless to say, all PLCs require a power supply in order to operate. This is why we are kicking off …
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Reading Time: 2 minutes Hey there Contractors and fellow Service Professionals! We are happy to announce that we are now rolling out PLC products. You can find these parts at our online store here. You might be wondering… What is a Programmable Logic Controller (PLC)? If you’re an electrical engineer, a contractor, electrician, or a …
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Hammond Power Solutions Inc. (HPS) is the industry leader in the design and manufacture of standard and custom magnetic dry-type transformers. Established in 1917, the global company has facilities in the U.S., Canada, Mexico, India and Italy. With over 100 years of experience, the company database contains over one million transformer designs and offers thousands …
Hammond Transformers: The Ultimate Guide to Hammond Power Solutions Products Read More »