Dc Disconnect Switches POWER-SPEED Cross-Reference Guide Fuse Cross Reference Guide Dc Disconnect Switches The Littelfuse LS6 and LS6R dc series are energy-efficient, compact disconnect switches that quickly break or resume the flow of current safely to prevent shock hazards when trying to isolate circuits or repair systems. This cross-reference tool includes the most popular dc disconnect switches. It is designed for quick identification and product selection. Switches Littelfuse Rated Insulation Number of Configuration Grounded or ABB Socomec Amperage Part Number Voltage Ui (V Dc) Poles Type Ungrounded Part Number Part Number LS602501VS00L 500 V dc 250 A 1P 1V Grounded N/A N/A LS602502LS00L 500 V dc 250 A 2P 2L Ungrounded N/A N/A LS604001VS00L 500 V dc 400 A 1P 1V Grounded N/A N/A LS604002LS00L 500 V dc 400 A 2P 2L Ungrounded N/A N/A OTDC250UFS02 LS602501MS00L 1000 V dc 250 A 1P 1M Grounded 27PV2024 + 27091020* OTDC250UFS11 OTDC250UF02 LS602502ES00L 1000 V dc 250 A 2P 2E Ungrounded 27PV2024 OTDC250UF11 OTDC320UFS02 OTDC400UFS02 27PV2032 + 27091041* LS604001MS00L 1000 V dc 400 A 1P 1M Grounded 27PV2039 + 27091041* OTDC320UFS11 OTDC400UFS11 OTDC320UF02 OTDC400UF02 27PV2032 LS604002ES00L 1000 V dc 400 A 2P 2E Ungrounded 27PV2039 OTDC320UF11 OTDC400UF11 OTDC250UFSV02 LS6R02504DS00L 1500 V dc 250 A 1P 4D Grounded N/A OTDC250UFSV11 OTDC250UFV02 LS6R0250CBS00L 1500 V dc 250 A 2P CB Ungrounded N/A OTDC250UFV11 OTDC320UFSV02 27PV3026 + 27091041* OTDC400UFSV02 LS6R04004DD00L 1500 V dc 400 A 1P 4D Grounded 27PV3032 + 27091041* OTDC320UFSV11 27PV3039 + 27091041* (x2) OTDC400UFSV11 OTDC320UFV02 27PV3026 OTDC400UFV02 LS6R0400CBD00L 1500 V dc 400 A 2P CB Ungrounded 27PV3032 OTDC320UFV11 27PV3039 OTDC400UFV11 *Socomec jumper - Littelfuse products are engineered to eliminate the need for jumpers to reduce dissipation as well as the extra assembly and maintenance they require 2020 Littelfuse, Inc. Littelfuse.com/DcDisconnectSwitch 1 of 2Connection diagrams Dc Disconnect Switches POWER-SPEED 2 1 Cross-Reference Guide Fuse Cross Reference Guide 1V 2L 2 1 1 1 Connection diagrams Accessories Connection diagrams Littelfuse ABB Socomec Amperage Description Part Number Part Number Part Number OHB95J12 (external panel handle) + 142D 2111 (external panel handle) + LDSSA11 250 External panel handle with shaft OXP12X185 (shaft) 1400 1032 (shaft) LDSSI11 250 Direct handle N/A** N/A 2 1 OHB95J12 (external panel handle) + 142D 2111 (external panel handle) + LDSLA21 400 External panel handle with shaft 2E 1M OXP12X185 (shaft) 1400 1032 (shaft) 2L 1V 2 1 LDSLI21 400 Direct handle N/A** N/A 1 1 2 2 1 1 2 1 2L 1 1 1V LD5LAU01 N/A Auxiliary contact 1NO + 1NC OA1G10 + OA3G01 2799 0021 Connection diagrams 2 1 1 1 Connection diagrams **ABB references switches with direct handle or external handle pre-mounted Ungrounded System Configurations 1 2 DOWN DOWN 2 1 2E 1M1 2 1 2L 1V 1 2E 1M2 1 1 2 2L2 1V 1 1 4D CB UP UP 2 1 1 1 1 2 1 1 1 2 2 1 1 1 1 Connection diagrams Type 2E Type 2L Type CB 1 2 Grounded System Configurations DOWN DOWN 1 2 1 1 2 2E 1M DOWN DOWN 2E 1M 1 2L 1V 1 2 CB 4D UP 1 1 2 2 1 1 UP 1 1 1 2 2 2 1 1 1 1 1 1 2 CB 4D UP UP 1 Type 1M Type 1V Type 4D 1 2 1 DOWN 2 DOWN DOWN 1 DOWN 2E 1M 1 1 2 CB 4D 1 UP 1 1 2 2 1 1 UP 2 CB 4D UP UP 1 1 Please check all applicable specifications prior to making a product substitution or selection. For special applications or more complete information, visit Littelfuse.com/DcDisconnectSwitch or contact us at 1-800-Tech-Fuse or techline littelfuse.com Disclaimer Notice Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer. 1 2020 Littelfuse, Inc. FORM: PF797 2 Littelfuse.com/DcDisconnectSwitch Rev: 0-A-083120 DOWN DOWN 1 1 2 4D CB UP UP 1