Germantown, WI – July 2009 – Reduce photovoltaic transition box wiring times by up to 50% through no-twist connections with WAGO Corporation’s 773 Series WALL-NUTS^™ splicing terminals. WALL-NUTS^™ PUSH WIRE^® terminations eliminate time-consuming twisting or crimping required by traditional twist- or butt-style connectors. Simply insert a stripped conductor and push it in.  

The resulting terminations streamline the transition between PV cables (e.g., multi-contact USE-2 type conductors used in PV arrays) and standard cables (e.g., THHN/THWN 2-type conductors). Additionally, OSHA-approved WALL-NUTS^™ reduce operator strain, and the clear housing provides visual confirmation of terminations. The housing also features an integrated test-port for convenient continuity testing.  

Ambient and current-induced temperature changes can compromise other connector types through thermal cycling — expansion and contraction in metal parts. Eventually, these connections will exhibit diminished performance that can lead to electrical failures. WALL-NUTS^™ automatically adjusts for temperature cycling and settling strands, providing maintenance-free terminations.  

Available in 2- to 8-pole configurations, WALL-NUTS^™ terminates solid or stranded conductors ranging in size from 10...18 AWG. Standard WALL-NUTS^™ models are UL listed at 600V, with a 20A maximum current capacity and also feature a max operating temperature of 105°C. A specialty high-temperature variant builds on these ratings with an extended operating range of 150°C. In addition to UL Listing, WALL-NUTS^™ carry CSA Certification.  

WAGO is the leader in spring pressure connection technology that eliminates loose wires resulting from vibration and temperature cycling, while providing highly reliable, corrosion-resistant and maintenance-free connections. Products: DIN-rail, PCB and chassis mount terminal blocks; signal conditioners; the WAGO-I/O-SYSTEM and more. 

For additional information: visit www.wago.us, or contact WAGO at 1-800-DIN-RAIL or info.us@wago.com.