Insulated Enclosure KU 4087, KU 4088 KU 4089 to DIN 43 880 for building-into distribution cabinets or surface mounting Technical Data Order references 8 Terminals KU 4087.0031867: Standard version vertical PCB KU 4087.0044740: Standard version horizontal PCB 16 Terminals KU 4088.0031868: Standard version vertical PCB KU 4088.0036588: Standard version horizontal PCB 32 Terminals KU 4089.0031869: Standard version vertical PCB KU 4089.0036437: Standard version horizontal PCB Versions with removable front plate, on request Outer dimensions: 17,5 x 90 x 58 / 35 x 90 x 58 / 70 x 90 x 58 Enclosure material: PC - GF, light grey RAL 7035 Temperature stability: complying with UL 746 B: 125 C complying with Vicat ISO 306 Meth. B: 148 C complying with ISO 75-2 Meth. A: 138 C Meth. B: 144 C Width 17,5 / 35 / 70 mm Max. permitted power dissipation: 3 W / 4 W / 8 W 8 / 16 / 32 plus-minus-terminal screws with at normal climate 23/50-1 ISO 554 self raising terminal wachers. specific thermal resistance: R = 16 K / W 12 K / W 8 K / W th Part utilised possible, with blanking plug for stand-alone enclosure as option Flame retardancy Secure termination of max. 2 connection complying with UL 94: V-0 wires of differing cross section complying with IEC 60 707: BH 2-30 Machine solderable connection pins, Number of terminals: 8 / 16 / 32 < 8, < 16, < 32 on request additional wire connection possible Terminal material: Steel strip, tin-plated Housing supplied as single parts, terminals prefitted in terminal blocks 2 Max. cross section for connection: 2 x 2,5 mm solid 2 2 x 1,5 mm stranded DIN 46 228-1/-2/-3/-4 min. 0,1 mm solid Max. contact resistance to printed circuit board: 20 m Max. current carrying capacitiy: 16 A 40 A on request Plus-minus- Wire fastening: Captive plus-minus-terminal screws M3,5 terminal screw M3,5 with self raising terminal washers. Function compl. with IEC 60 999-1 Base Inner connection: Machine solderable connection pin for PCB und and soldering lug for stranded Enclosure fastener: 1) Snap-on fastener on top hat rail EN 50 022 2) Screw fixing M4, grid 90 mm Terminal block with additional clip as accessory Creepage current resistance: CTI 175 = insulated material III a IEC 60 664-1 Connection plate with solder pin Air gap and creepage distances IEC 60 664-1 Vertival PCB: Air gap distance: 4,0 mm Creepage distance: 6,3 mm vertical PCB Horizontal PCB: 3,2 mm lower section of enclosure Flat terminals for vertical PCB Type of protection Plus-minus- Enclosure: IP 40 IEC 60 529 terminal screw M3,5 Terminals: IP 20 IEC 60 529 Contact protection complies with VBG 4 Print area: 17 x 44 mm / 35 x 44 mm / 71 x 44 mm Base Printed circuit board: See printed circuit board design Printed circuit board holder: Guide ribs Net weight: 42 / 80 / 150 g Terminal block Accessories: ET 4086-0-2: Second clip for screw fixing Connection plate KU 4089-3-4: Blanking plug for terminal block with solder pin KU 4087-0-2: Blanking plug for Enclosure base KU 4087-2-1: Dummy terminal block for vertical PCB KU 4089-3-1: Dummy terminal block for horizontal PCB Foot KU 4089-3-3: Double foot, for KU 4089-3-1 necessary, lower section of enclosure 2 pieces KU 4089-3-1 mounted on double foot horizontal PCB KU 4089-3-3.1: Foot, for KU 4089-3-1 necessary, 1 piece KU 4089-3-1 mounted on foot Flat terminals for horizontal PCB All specifications correspond to the technology used at time of publication. We reserve the right to make improvements and changes of a technical nature at any time. KU 4087, KU 4088, KU 4089 / 04.09.02 d 1Exploded views Dimensions Enclosure for vertical PCB PCBs not included in deliveries KU 4087.0031867 Terminal block fitted KU 4087-2.1/0142957 Terminal block fitted KU 4087-3.1/0142958 in area 15 x 35 openings are top hat rail possible to customers spec. EN 50 022 KU 4088.0031868 Terminal block fitted KU 4087-2.1/0142957 Terminal block fitted KU 4087-3.1/0142958 in area 33 x 35 openings are top hat rail possible to customers spec. EN 50 022 KU 4089.0031869 Terminal block fitted KU 4087-2.1/0142957 Terminal block fitted KU 4087-3.1/0142958 in area 67 x 35 openings are possible to customers spec. top hat rail EN 50 022 2