FUSERBLOC LMDC Fuse combination switches FUSERBLOC Live Maintenance DC

Transcription

1 Fuse protection The solution for > Live maintenance of speed drives supplied by a common DC bus > Live maintenance of PV inverters connected in parallel on a same circuit fuser-lm_2_a Strong points > Compact > Automatic pre-load > Integrated fuse protection Function FUSERBLOCs LMDC are designed to perform the maintenance of DC/AC speed drives or PV inverters without stopping the entire installation. This multifunctional device for performing maintenance work on a branch of the electrical system while leaving the rest of the equipment energised. FUSERBLOCs LMDC ensure a safe charge of capacitive loads by limiting high inrush current during power-up of the branch and thus reducing stress to components. Conformity to standards > IEC Advantages Compact Isolation, protection and precharge of capacitive loads within a single device. Automatic pre-load After maintenance operations, the pre-load of inverters capacitors will be managed automatically through a coil. Integrated fuse protection Semiconductors protection is integrated to the switch (no additional space is required). Characteristics 25 to 6 A DC2 2 General Catalogue 26-27

2 References External / direct operation 25 to 6 A Rating (A) No. of main poles 25 A 2 6 A 2 25 A 2 4 A 2 6 A 2 Fuse size of main poles DIN 462 DIN 462 DIN DIN 462 DIN A 2 KN/ A 4 (2 //) DIN A 4 (2 //) KN/ Pre-charge poles (DIN 462) 2 x 6 A 2 x 6 A 2 x 6 A 2 x 6 A 2 x 6 A 2 x 6 A 2 x 6 A 2 x 6 A Reference External front handle Direct front handle Shaft for external front handle Auxiliary contacts Terminal shrouds 8DR 22 ()(2) S type (4) 8DR 26 ()(2) Black IP65 Black (4) 8DR 225 ()(2) Red/Yellow IP65 44 () Coil must be ordered separately. (2) Include standard fuse protection cover. If fuse microswitch is used please use specific fuse protection cover. () Max 8 contacts (4 already provided with the switch). (4) IP2 kit, please consult us. 2 mm 4 22 U type 8DR 24 ()(2) contact NC 2 mm () DR 26 ()(2) S4 type contact NO Black IP65 5 mm Black () 8DR 29 ()(2) DR 4 ()(2) Red/Yellow IP65 8DR 46 ()(2) Characteristics according to IEC Products 25 A 6 A 25 A 4 A 6 A 9 A A 6 A size 2 No. of main poles (2 //) 4 (2 //) Fuse size of main poles / / 2 2 / K / K / Thermal current I th at 4 C (A) Rated insulation voltage U i (V) Rated impulse withstand voltage U imp (kv) Load duty category DC-2 DC-2 DC-2 DC-2 DC-2 DC-2 DC-2 DC-2 Fuse protected short-circuit withstand Current peak value: withstand and making (peak ka) Prospective short-circuit current (ka rms) () Heat dissipation Maximum fuse dissipation per pole (W) Maximum switch dissipation per pole (W) Fuse size of pre-charge poles (DIN 462) Number of pre-charge poles Thermal current I th at 4 C (A) Rated insulation voltage U i (V) (operation circuit) Rated impulse withstand voltage U imp (kv) (operation circuit) Fuse protected short-circuit withstand Current peak value: withstand and making (peak ka) Prospective short-circuit current (ka rms) () Heat dissipation Maximum fuse dissipation per pole (W) Maximum switch dissipation per pole (W) Mechanical characteristics Endurance (number of operating cycles) (2) () Ue 4 VAC with gg fuses (AC value for information only). (2) max./hour. General Catalogue 26-27

3 Accessories Coils kit Use Accessory required for the good functioning of the product. Voltage Reference 24 VDC 8DR C24 2 VAC 8DR A2 acces_8_a_2_cat Specific protective covers for fitted fuse blown microswitch Product NFC/DIN fuse size No. of poles Reference 25 A A A A A A 2 standard A 4 (2 //) A 4 (2 //) standard acces_22_a_2_cat Solid links Product NFC/DIN fuse size No. of poles Reference 25 A A A A A A 2 consult us A 4 (2 //) A 4 (2 //) consult us fusib_24_a cat 4 General Catalogue 26-27

4 Operating diagram Pre-load auxiliary contact Auxiliary contact MANUAL - Step Coill & auxiliary contact Additional auxiliary contact 24 Vdc / 2 Vac L L2 P P fuser-lm_8_a gb_cat MANUAL - Step 2 Coill & auxiliary contact Additional auxiliary contact 24 Vdc / 2 Vac L L2 P P ! PRE-LOAD POSITION DO NOT OPERATE TO fuser-lm_9_a gb_cat POSITION OFF AUTO - Step Coill & auxiliary contact Additional auxiliary contact 24 Vdc / 2 Vac L L2 P P fuser-lm a gb_cat General Catalogue

5 Operating diagram (continued) and auxiliary contacts OFF PRE-LOAD ON OFF L / L2 P / P2 COIL AUX 6-64 fuser-lm_7_c gb_cat AUX 5-54 Dimensions DC switches 25 to 25 A A K K2 Terminal shroud J J B K H 22 K A L 45 C fuser-lm a gb_cat.eps Rating (A) Unit A A B C H J J K K K2 K L 25 in mm in mm in mm General Catalogue 26-27

6 DC switches 4 to 6 A 4 to 9 A A Connection terminals K K2 K 4 to 6 A 9 A J J B K 45 2 Ø fuser-lm_2_a.eps fuser-lm_2_a.eps to 6 A K K2 K J A J Terminal shroud L A B K H 22 A L 45 C fuser-lm_4_a gb_cat.eps Rating (A) Unit A A B C H J J K K K2 K L 4 6 in mm in mm in mm in mm General Catalogue