ABB Protecta Plus ESB25-31N-01 24V AC/DC Installation Contactor • 25 A Rated Current • 3 NO + 1 NC 4-Pole Modular Contactor • DIN Rail Mount 36 mm Width • 1SAE231111M0131

• TECHNICAL SPECIFICATIONS – 4-pole installation contactor (3 NO / 1 NC), rated current 25 A (AC-1 / AC-7a), AC-3 current 9 A at 230 V, control voltage 24 V AC/DC, insulation voltage 500 V, impulse withstand 6 kV, DIN rail mounting, screw terminals, IP20, 36 × 85 × 65 mm.
• VERSATILE LOAD CONTROL – ABB hum-free installation contactors are available from 16 to 100 A with a wide range of main contact configurations, including NO, NC and mixed combinations. Designed for switching lighting, heating, ventilation systems, motors and pumps in residential, commercial and industrial installations.
• QUIET AC/DC OPERATION – Innovative AC/DC coil design prevents device humming and enables operation with AC or DC control voltages depending on the coil variant. The design supports quiet switching performance, making the contactors suitable for noise-sensitive environments such as hotels, offices and residential buildings.
• FLEXIBLE SYSTEM INTEGRATION – Part of the ABB installation contactor portfolio with a broad range of accessories including auxiliary contacts and protective covers. Devices allow side-by-side mounting without spacing and integrate seamlessly into ABB modular installation systems for distribution boards.
• ABB PROTECTA PLUS SYSTEM – Part of the ABB Protecta Plus modular distribution system for indoor installations, offering high internal accessibility, removable internal modules for simplified wiring, insulated neutral and earth bars, and an expandable cabinet concept for flexible electrical distribution solutions.

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