ABB CAL4-11 Auxiliary Contact Block 1NO+1NC Front Mount Screw Terminals (1SBN010120R1011)

With a rated insulation voltage of 690 V and an impulse withstand of 6 kV, the ABB CAL4-11 auxiliary contact block delivers uncompromising performance for demanding control circuits. This front-mounting unit adds one normally open and one normally closed contact to ABB AF09-AF96 and AF116-AF370 contactors, expanding functionality without compromising panel space.

Overview

The CAL4-11 is engineered for reliability in motor control and automation applications. Its screw terminals accept solid conductors from 1 to 2.5 mm² and flexible conductors from 0.75 to 2.5 mm², ensuring secure connections in industrial environments. The contact block meets IEC/EN 60947-5-1, UL 508, and CSA 22.2 No. 14 standards, guaranteeing global compliance.

What stands out

• High electrical durability: 1.5 million operating cycles (AC-15) and 10 million mechanical cycles
• Wide operating temperature range from -25°C to +70°C for harsh environments
• Front mounting design allows quick installation without removing the contactor
• IP40 front protection and IP20 terminal protection for enhanced safety
• Versatile switching: 6 A at 230 V AC-15, 3 A at 400 V AC-15, and 6 A at 24 V DC-13

Technical details

• Contact configuration: 1 NO + 1 NC
• Rated operational voltage: 690 V AC / 250 V DC
• Rated insulation voltage: 690 V
• Rated impulse withstand voltage: 6 kV
• Terminal type: Screw terminals
• Connection capacity: 0.75–2.5 mm² flexible, 1–2.5 mm² solid
• Compatibility: ABB AF09-AF96, AF116-AF370 contactors
• Standards: IEC/EN 60947-5-1, UL 508, CSA 22.2 No. 14

Our verdict

The ABB CAL4-11 is a robust, standards-compliant auxiliary contact block that offers exceptional durability and ease of installation. Its high switching capacity and broad temperature tolerance make it a dependable choice for industrial control systems.