KRAUS & NAIMER Disconnectors for Photovoltaic

Disconnectors for Photovoltaic DC Disconnectors for Solar Photovoltaic (PV) Power Supply System acc. to IEC 60364-7-712:2002 Data valid only, if the pre-assembled jumpers have not been modified. * Valid for ungrounded or center-earthed PV systems, overvoltage category III, pollution degree III www.krausnaimer.com 9 DISCONNECTORS FOR PHOTOVOLTAIC + - Output + - Input Input General Data Switch Disconnector according to EN 60947-3 respectively VDE 0660 Part 107 Utilization Category: for Photovoltaic Application DC-22A (Switching of combined resistive or low inductive loads including moderate overloads) DC-21B (Switching of resistive loads, including moderate overloads) Connecting Terminals finger-proof according to VDE 0660-514 and BGV A3, IP 20 Maximum permissible wire size (use copper wire only) single core wire or stranded wire flexible wire without sleeve / sleeving acc. to DIN 46228 KG20/KG32: 6 mm ² KG41: 16 mm ² KG20/KG32: 4 mm ² KG41: 10 mm ² Mounting Plastic Enclosures, Predection IP66/67, totally insulated, knock-out entries, Handle red, OFF-position lockable with padlocks, cover coupling with interlock Rated Value/Order Number Utilization Category DC-22A DC-21B DC-22A DC-21B DC-22A DC-21B Operational Current I e (enclosed up to 50 ˚C ¹ ) 18 A 25 A 25 A 32 A 32 A 40 A Operational Current I e (enclosed up to 60 ˚C ² ) 18 A 23 A 23 A 23 A 32 A 40 A Operational Voltage U e 450 V DC 450 V DC 450 V DC Max. Off load voltage of the PV inverter 540 V DC 540 V DC 540 V DC Insulation Voltage U i * 690 V 690 V 690 V Operational Current I e (enclosed up to 50 ˚C ¹ ) 12 A 21 A 18 A 28 A 20 A 28 A Operational Current I e (enclosed up to 60 ˚C ² ) 12 A 21 A 18 A 23 A 20 A 28 A Operational Voltage U e 500 V DC 500 V DC 500 V DC Max. Off load voltage of the PV inverter 600 V DC 600 V DC 600 V DC Insulation Voltage U i * 690 V 690 V 690 V Order Number Handle red/Escutcheon plate backing yellow   KG20 T204/D-P003 KL51V KG32 T204/D-P003 KL51V KG41 T204/D-P003 KL11V Handle black/Escutcheon plate backing grey KG20 T104/D-P003 KL51V KG32 T104/D-P003 KL51V KG41 T104/D-P003 KL11V ¹ 50 ˚C during 24 hours with peaks up to 55 ˚C | ² 60 ˚C during 24 hours with peaks up to 65 ˚C Connecting diagram Tightening torque for terminal screws Strip length N T3 T1 T2 Input Output + - + - KG20/ KG32 1,25 Nm KG41 1,80 Nm KG20/ KG32 9 KG41 10 Contact development: 2-pole, 4 contacts per circuit (2 x 2 in series) KG20/ KG32 KG41 B 85 100 D1 2 x Ø 20 2 x Ø 25 D2 Ø 20 Ø 25 F 150 178 H 82 93 K 160 190 = .. T204 .. = .. T104 .. D2 H 17 D1 B K F D2 450 V DC : 25 A/32 A/40 A 500 V DC : 21 A/28 A 1 x 2-pole < Back to the table of contents >