Connection blocks for high current
October 11, 2010 by Kathleen Zipp
Filed under Connectors, Electrical Systems
A manufacturer of electrical and electronic components for circuit protection and connections has introduced the UL Listed Thermoplastic 135 Series Power Distribution Blocks. These blocks, from Marathon Special Products, include a high current carrying capacity, wide range of wiring options, and suitability for UL508A Control Panel Applications up to a short circuit current rating of 100,000 SYM Amps. The 135 Series meets UL1953 (Power Block standard) requirements and is listed for general installation. This means they have adequate spacing for most OEM and field applications. In addition, the 135 Series block can be used in “as supplied condition” because it meets the feeder circuit terminal spacing requirements per UL508A section 10.2 (1 in. through air, 2 in. over surface at 600V). The blocks are identified with a listing mark from UL so inspectors need not check “conditions of acceptability” resulting in a quicker inspection.
Marathon Special Products www.marathonsp.com
Connection blocks for high current
August 10, 2010 by Paul Dvorak
Filed under Connectors, Electrical Systems
Power distribution blocks from Marathon Special Products feature a high-impact resistant thermoplastic insulator base and a UL temperature rating of 125C
A manufacturer of electrical and electronic components for circuit protection and connections has introduced its UL Listed Thermoplastic 135 Series Power Distribution Blocks. The 135 Series Power Distribution Blocks, from Marathon Special Products, include a high current carrying capacity, wide range of wiring options, and suitability for UL508A Control Panel Applications up to a Short Circuit Current Rating of 100,000 SYM Amps. Most company products comply to UL requirements for use with flexible stranded wires, carry short-circuit current ratings, and are CE 1,000 Vac and Vdc rated.
The 135 Series meets UL1953 (Power Block standard) requirements and is listed for general installation. This means they have adequate spacing for most OEM and field applications. The advantage of using a 135 series distribution block can be used in “as supplied condition” because it meets the feeder circuit terminal spacing requirements per UL508A section 10.2 (1 in. through air and 2 in. over surface at 600V). The blocks are identified with a listing mark from UL so inspectors need not check “conditions of acceptability” resulting in a quicker inspection.
The Power Distribution Blocks also comply with National Electric Codes for use in service equipment. The blocks are UL Listed and service-equipment rated, so they are suitable for applications where system components must be connected in the field. This includes installation in wireways and industrial control panel feeder/branch circuits, splicing and tapping conductors in metallic wireways, auxiliary gutters, junction boxes, termination boxes, and similar applications. The blocks can also connect modular tower sections for wind turbines, for large motor connections such as water lifting and material handling, and to interconnect multiple panels in control and power-distribution systems.
Marathon Special Products
marathonsp.com
UL Listed Power Distribution Blocks for wind turbines
February 6, 2010 by Windpower Engineering
Filed under Electrical Systems
Marathon Special Products series of UL Listed Power Blocks feature high current carrying capcity (up to 950A), a wide range of wiring options, hinge cover, and suitability for UL 508A Control Panel Applications with Short Circuit Current Rating (SCCR) up to 100,000 SYM Amps.
According to James Hemp, Sr. Project Engineer at Marathon Special Products, “the advantage of using a 135 series listed Power Distribution Block versus a recognized block is that a listed block (UL1953) can be used in “as supplied condition” since it meets the feeder circuit terminal spacing requirements per UL508A section 10.2 (1” through air and 2” over surface at 600V).”
The 135 Series Power Distribution Blocks comply with National Electric Codes (NEC) for use in service equipment. Since these blocks are UL Listed and service equipment rated, these blocks are suitable for applications where system components must be connected in the field. This includes installation in wireways, junction boxes, termination boxes, and similar applications. Applications of the 135 series Power Blocks include connection of modular tower sections for Wind Turbines, large motor connections, and interconnection of multiple panels in control and power distribution systems.
For further details on the newly released Power Distribution Block and other products including Fuse Holders and Terminal Blocks, please visit www.marathonsp.com/ or write to marketing@marathonsp.com.
