Connectivity solutions for photovoltaic power systems LC4®-JC – Junction boxes for Crystalline modules LC4-JC Photovoltaic junction box for crystalline modules1, with connecting cables and LC4® connectors, with 2–4 spring clamps and 0–3 diodes, for ribbons fed through the back plane of the module, mounting with self-adhesive pad2 or by means of glue 1. Temperature range -40 °C/+85 °C (IEC) -40 °C/+90 °C (UL) (+125 °C upper limit temperature) 2. Materials halogen-free, UV-resistant Housing/cover Contact Pressure contact spring Cap nut Sealings Pressure compensation seal Adhesive pad m-PPE, 5VA according to UL 94 CuNiSi, tin-plated CrNi m-PC, V0 according to UL 94 silicone PTFE upon request 3. Mechanical data Mating with photovoltaic connectors LC4 Further data see LC4-CP 3.../LC4-AM Protection degree (junction box)3 IP 65 Connectable contact ribbons Width ≤ 10.0 mm ≤ 0.1 mm Thickness Other dimensions upon request Connected conductor Photovoltaic cable, double-insulated, technical Data upon request Section alternatively 2.5 mm2 (AWG 14), UL-approved 4.0 mm2 (AWG 12), TÜV/UL-approved 6.0 mm2 (AWG 10), TÜV/UL-approved 4. Electrical data (at Tamb 20 °C) ≤ 1 mΩ various diodes available, value depending on type of diode and diode bypass test, details upon request Rated current (UL) 15 A DC (AWG 14) 20 A DC (AWG 12, AWG 10) without diode, details upon request Rated voltage4 1000 V DC (IEC)/600 V DC (UL) Reverse current 25 A DC Modul working voltage 100 V DC Overvoltage category4 III (8 kV) 4 Material group IIIa (IEC)/2 (UL) (CTI ≥ 250) Creepage distance/clearance between all other live parts 12.7 mm/9.5 mm live parts and touchable surfaces 20.0 mm 4 Pollution degree 3 Protective class II Application class5 A Insulation resistance > 10 GΩ Contact resistance Rated current (IEC) 1 2 3 4 5 according to application class A of IEC 61730-1/UL 1703 appropriate materials upon request according to IEC 60529/DIN EN 60529 according to DIN EN 60664/IEC 60664 resp. according to ANSI/UL 746A according to IEC 61730-1 ® *a *b *c *d *e *f *g self-adhesive pad option spacer option for fixation by means of glue assembly hole for contact ribbons, view without cover connecting cables: section 4.0 mm² (AWG 12) or 6.0 mm² (AWG 10) connecting cables: section 4.0 mm² (AWG 12) or 6.0 mm² (AWG 10) left connector: LC4-CP 3... or LC4-AM right connector: LC4-CP 3... or LC4-AM Crystalline modules: Wiring diagram Two-pole junction boxes, for ribbons fed through the back plane of the module Designation LC4-JC www.lumberg.com details upon request 03/2014