Nevertheless, some manufacturers have been producing listed systems in the range between 750VA and the 1000VA maximum in Sec. For this reason, the 25A limitation applies even at lower voltages where the resulting VA is lower at 12V for example, the VA limitation would be (12Vx25A) = 300VA. Many manufacturers didn't think that was practical. The restriction is based on practical concerns involved with the desired physical flexibility for these systems if the current went up above 25A, the wire size would increase to No. This is less than the power4imited Class 1 threshold of 1000VA. Note that this creates an effective power limitation of 750VA (30V x 25A). The secondary circuits must have some form of current limitation such that the current cannot exceed 25A. These systems use an isolating power supply that must not exceed 30V (42.4Vpk) under any load condition, even while open circuited. The restriction applies to what the systems as a whole are connected to, and not to the ratings within a given lighting system. 411-6, which imposes a 20A branch-circuit restriction. Although these may be assembled (and disassembled) in the field, each of the components will be listed as part of an overall system. The most important thing to remember about these systems is that they are exactly that, systems. The requirements in the new article are summarized in Fig. 725 of the NEC by incorporating power supplies that work under either Class 2 power limitations or power-limited Class 1 circuits meeting the 1000VA, 30V limitations in Sec. These products are being listed under Art. At present, they are being listed to the general incandescent lamp standard (UL 1571), although when the new standard is finalized, these listings will change over to the new standard. There are, however, products available now that are listed and happen to comply with the new article, although not expressly listed to those terms. When the standard is complete, probably within the year, we will see products listed accordingly. Underwriters Laboratories (UL) is now writing a new standard (UL 2108) to cover these systems. Low-voltage lighting has been in use for about 30 years, with widely differing acceptance by local inspection authorities due to its ambiguous coverage in the NEC. Additional requirements, however, apply if wet contact is a factor. For hub Systems you can use more fixtures per run, daisy chained after the first light connected.įeatures and benefits of our junction box hub system is that your connections are inside a sealed compartment/sealed body, contains a removable top, 8 rubber cap sealed cable entrance/exit holes, and a brass threaded spike screws to stake into the ground (stake is included).A new Code article covering lighting systems operating at 30V or less will modify some and help standardize other low-voltage lighting designs. If the voltage is below 12 volts, move it up to the appropriate voltage tap on the transformer until the fixtures have between 11-12 volts. Lastly measure the voltage in each fixture. Then, all of your fixtures branch off the end of the hub. Inside the hub you would connect all of your fixtures to the end of the cable. Our low voltage lighting hub system would be placed in the middle distance of your lighting zone with one wire/cable ran from the transformer to the hub. Additionally, all of your connections are above ground in a dry, weather tight junction box to keep your wires and connections moisture free and prevent corroding like traditional methods of installation.

Our junction box helps prevent drop voltage in your landscape lights and brings ease to mind knowing all of your connections are in one place for future troubleshooting. Our JB08 Low Voltage Junction Box is an easy and efficient way to connect all your lighting lines to one place.

Low voltage splice box