Heavy Wall Tubing

Heavy Wall Tubing



3M™ Heavy Wall Tubing is designed to provide reliable performance as well as excellent mechanical and environmental protection. It is flame retardant and UV resistant, and offers easy handling and installation.

Dual Wall Tubing

Dual Wall Tubing



3M™ Dual Wall Tubing has an outer wall that provides abrasion resistance and an inner wall that forms an environmental seal against moisture penetration. It is flame retardant, offers a choice of shrink ratios, and meets both UL/CSA specifications and military specifications

3M™ Fire Barrier Pillows

3M™ Fire Barrier Pillows



Our pillows intumesces (expands) and locks itself into place, completely surrounding the penetrant(s) stopping smoke, fire and toxic gases from spreading to the next room or next floor for the rated time period. They are easy to install and great for retrofit project.

Insulating and Splicing Tape

Insulating and Splicing Tape



A variety of tapes are available from 3M to meet your insulating and splicing requirements. For example, Scotch® Linerless Rubber Splicing Tape 130C is a highly conformable, linerless, high-voltage insulating tape that provides excellent thermal dissipation of splice heat and meets industry specifications.

3M™ Portable Labeler PL100

3M™ Portable Labeler PL100


Highly efficent and affordable, the 3M™ Portable Labeler PL100 offers versatility and value for your labeling needs. This compact unit can print on a variety of materials, including heat shrink and is equipped with hot keys for automatic labeling task

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The PL100 is equipped with 6 hot keys allowing printing of incremental text and numerical information in flag, fixed-length and vertical label formats.

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Products

Product Documentation


Product Number MSDS
PL100

UPC: 00051128584576 Find a distributor

Request more information
AC Adaptor/ Rechargeable Battery: No
Backlit LCD: No
Bar Code Capability: No
Hot Keys: Yes
Label Size Support: 1/4 to 1/2 Inch
Label Storage: 0
PC Conn: No
Prints on Heat Shrink: Yes
Rubber Protective Bumper: No
Symbol Library Terms: 70

Recreational Vehicle Park Equipment

Recreational Vehicle Park Equipment

Application Information

Today, most recreational vehicle parks provide power for their tenants. This application presents unique requirements including user safety, rugged construction, weather protection, receptacle versatility and attractiveness.

Midwest offers both the traditional metallic equipment and the Parkmate™ series of non-metallic thermoplastic units. Both sytles provide a variety of options including electronic metering, integrated TV/Telephone and various light options.

Features & Benefits

Rugged Durability:

* All-in-one construction for factory assured terminations
* Rolled edge door for cord protection
* Continuous duty meter socket with meter guides and reinforced jaws
* Utility accepted meter sealing accommodations
* Heavy G-90 galvanized steel with highest quality electro-deposition finish provides excellent corrosion protection
* Welded flange NEMA 3R construction for lasting service in out-door installations
* Lighted units include a LED lamp rated for 100,000 hours - that's almost ten years without having to change a lamp!

User Safety:

* Dead front construction prevents accidental contact with live parts
* Door has padlock provisions to prevent unauthorized access
* Listed by Underwriters Laboratories (consult Manufacturer's Representative for CUL)

Installation Ease:

* All components factory wired and assembled, reducing installation time
* Door removable for installation ease; stay-open position for user convenience
* All terminals accept copper or aluminum wire for added installation flexibility
* Wide range of receptacle configurations
* Broad range of concentric knock-outs to accommodate varied wiring needs
* All units with 12-2 Cu Al equipment ground lug
* Reduced maintenance on lighted units due to longevity of LED lamp

Circuit Breakers

The circuit breaker is a popular and most important electrical device to ensure safety in the modern world. The circuit breaker is used to cut the power supply when an electrical wire has too much current flowing through it. Without these simple devices, household electricity would not be possible because of the chances for fire and short circuit resulting from simple wiring problems and equipment failures.

The device serves in the course of normal system operation to energize or de-energize loads. In case of conditions where excessive current develops, a circuit breaker opens for protecting equipment and surroundings from possible damage due to excess flow of current.

This automatically-operated electrical switch, unlike a fuse, can be reset (either manually or automatically) for resuming normal operation. These devices are made in varying sizes, right from small devices for protecting an individual household appliance up to large switchgear designed for protecting high voltage circuits feeding an entire city.

Circuit breakerCircuit breaker

Types of Circuit Breakers
There are different technologies being used for manufacturing different circuit breakers and it is difficult to categorize them into distinct categories. Different circuit breakers are used in domestic, commercial and light industrial applications at low voltage (less than 1000 V). These include:

* MCB (Miniature Circuit Breaker): The rated current of the device is not more than 100 A. These have thermal or thermal-magnetic operation... more

* MCCB (Moulded Case Circuit Breaker): The rated current of the device is up to 1000 A. These have thermal or thermal-magnetic operation.

Circuit Breaker Variants

* Magnetic Circuit Breakers: These are a type of circuit breakers that make use of a magnetic actuator to trip the circuit. These circuit breakers allow the current to flow through the electrical device and then pass through an electromagnetic actuator. When the current flow reaches a preset or pre-determined level, the magnetic field in the electromagnet is strong enough to trip the breaker and allow the contacts to open. A magnetic breaker needs to be manually set.

* Hydraulic Circuit Breakers: These are a popular type of circuit breakers designed for those applications requiring higher amperage and voltage handling capability.

* Thermal Circuit Breakers: A simple thermal circuit breaker allows the current to flow from a battery terminal, through the bi-metal strip and then to the other terminal. The bi-metal strip is made of two different types of metals, having different coefficients of expansion. This results in one metal expanding more than the other, in case of same rise of temperature. In this circuit breaker, when one metallic strips expands more than the other, and thus disconnects the contacts.
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* Auto Reset Circuit Breakers: These circuit breakers re set automatically in case of a faulty load or circuit. These circuit breakers are widely used in case of leakage, short - circuit, surge or overload etc. Auto reset circuit breakers do not require manual assistance for re setting and cut off power supply in case of power trip. This power is than again restored after auto resetting.

High Voltage Circuit Breakers
There are electric power systems requiring the breaking of higher currents at higher voltages. It is such systems that high-voltage AC circuit breakers are used.

* Vacuum Circuit Breaker: The rated current of the device is up to 3000 A. These specialty circuit breakers interrupt the current by creating and extinguishing the arc in a vacuum container. These devices can only be practically used for voltages up to about 35,000 V, which corresponds to the medium-voltage range of power systems. These circuit breakers have longer life expectancies between overhaul than do air circuit breakers.
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* Air Circuit Breaker: The rated current of the device is up to 10,000 A. Some of them are electronically controlled, while others are microprocessor controlled. These circuit breakers are used for main power distribution in large industrial plants.