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STTBS 4-MT BU - Knife-disconnect terminal block

Knife-disconnect terminal block, nom. voltage: 500 V, nominal current: 28 A, connection method: Spring-cage connection, Rated cross section: 2.5 mm², cross section: 0.08 mm² - 6 mm², cross section: 0.08 mm² - 6 mm², mounting type: NS 35/7,5, NS35/15, color: blue

Product Code: 3035522

Partner cod.: 3035522

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Product properties	Product type: Disconnect terminal block Number of connections: 4 Number of rows: 2 Potentials: 2 Insulation characteristics Overvoltage category: III
Electrical properties	Rated surge voltage: 6 kV Maximum power dissipation for nominal condition: 1.02 W
Connection data	Number of connections per level: 2 Nominal cross section: 4 mm² Level 1 Stripping length: 8 mm ... 10 mm Connection in acc. with standard: IEC 60947-7-1 Conductor cross section rigid: 0.08 mm² ... 6 mm² Cross section AWG: 28 ... 10 (converted acc. to IEC) Conductor cross section flexible: 0.08 mm² ... 4 mm² Conductor cross section, flexible [AWG]: 28 ... 12 (converted acc. to IEC) Conductor cross-section flexible (ferrule without plastic sleeve): 0.14 mm² ... 4 mm² Flexible conductor cross section (ferrule with plastic sleeve): 0.14 mm² ... 4 mm² 2 conductors with the same cross section, flexible, with TWIN ferrule with plastic sleeve: 0.5 mm² ... 1 mm² Nominal current: 28 A Maximum load current: 34 A (with 4mm² conductor cross section) Nominal voltage: 500 V Nominal cross section: 2.5 mm² Level 2 Connection in acc. with standard: IEC 60947-7-1 Conductor cross section rigid: 0.08 mm² ... 6 mm² Cross section AWG: 28 ... 10 (converted acc. to IEC) Conductor cross section flexible: 0.08 mm² ... 4 mm² Conductor cross section, flexible [AWG]: 28 ... 12 (converted acc. to IEC) Conductor cross-section flexible (ferrule without plastic sleeve): 0.14 mm² ... 4 mm² Flexible conductor cross section (ferrule with plastic sleeve): 0.14 mm² ... 4 mm² 2 conductors with the same cross section, flexible, with TWIN ferrule with plastic sleeve: 0.5 mm² ... 1 mm² Nominal current: 20 A (with a 2.5 mm² conductor cross section) Maximum load current: 20 A (with a 2.5 mm² conductor cross section) Nominal voltage: 500 V
Dimensions	Width: 6.2 mm End cover width: 2.2 mm Height: 92.4 mm Depth on NS35/7,5: 55 mm Depth on NS35/15: 62.5 mm
Material specifications	Color: blue Flammability rating according to UL 94: V0 Insulating material group: I Insulating material: PA Static insulating material application in cold: -60°C Temperature index of insulation material (DIN EN 60216-1 (VDE 0304-21)): 130°C Relative insulation material temperature index (Elec., UL 746 B): 130°C Fire protection for rail vehicles (DIN EN 45545-2) R22: HL 1 - HL 3 Fire protection for rail vehicles (DIN EN 45545-2) R23: HL 1 - HL 3 Fire protection for rail vehicles (DIN EN 45545-2) R24: HL 1 - HL 3 Fire protection for rail vehicles (DIN EN 45545-2) R26: HL 1 - HL 3 Calorimetric heat release NFPA 130 (ASTM E 1354): 28 MJ/kg Surface flammability NFPA 130 (ASTM E 162): passed Specific optical density of smoke NFPA 130 (ASTM E 662): passed Smoke gas toxicity NFPA 130 (SMP 800C): passed
Mechanical properties	Mechanical data Open side panel: Yes
Environmental and real-life conditions	Ambient conditions Ambient temperature (operation): -60°C ... 105°C (max. short-term operating temperature RTI Elec.) Ambient temperature (storage/transport): -25°C ... 60°C (for a short time, not exceeding 24h, -60°C to +70°C) Ambient temperature (assembly): -5°C ... 70°C Ambient temperature (actuation): -5°C ... 70°C Permissible humidity (storage/transport): 30 % ... 70 %
Standards and regulations	Connection in acc. with standard: IEC 60947-7-1
Mounting	Mounting type: NS 35/7,5 NS35/15