ABB OTOT25G1-4BSN1Plus 25 A 4-Pole Switch-Disconnector, Base Mount, Black Handle, IP65 Front

The ABB OTOT25G1-4BSN1Plus redefines compact isolation in industrial switchgear. Built on the G1 frame, this 25 A switch-disconnector delivers full 4-pole disconnection in a footprint that fits tight panel spaces, without compromising on safety or performance. Its direct-mounted black handle with a clear 1-0 position indication ensures unambiguous switching, while the IP65 front protection stands up to dust and water jets, making it a reliable choice for demanding environments.

Highlights

• Rated operational current of 25 A at up to 690 V AC, suitable for three-phase and single-phase circuits.
• 4-pole design allows simultaneous disconnection of all phases and neutral, enhancing maintenance safety.
• High insulation voltage of 1000 V and impulse withstand of 8 kV ensure dependable performance in systems with voltage spikes.
• Base mounting with screw terminals (1.5–10 mm²) simplifies installation and provides secure connections.
• Mechanical durability of 15,000 cycles and electrical durability of 2,000 cycles (AC-23A) guarantee long service life.
• Complies with IEC 60947-3, meeting international standards for switch-disconnectors.

In daily use

As a main switch or load break switch in control panels, motor starters, and distribution boards, the OTOT25G1-4BSN1Plus excels. The direct-mounted handle offers a firm grip and clear visual status, while the IP65 front protection allows installation in areas where washdowns or dust are present. Terminals remain IP20 for easy access during wiring, balancing safety and practicality.

Full specifications

• Product Type: Switch-disconnector
• Number of Poles: 4
• Rated Operational Current (Ie): 25 A
• Rated Operational Voltage (Ue): 690 V AC
• Rated Insulation Voltage (Ui): 1000 V
• Rated Impulse Withstand Voltage (Uimp): 8 kV
• Rated Frequency: 50/60 Hz
• Mounting Type: Base mounting
• Terminal Type: Screw terminals
• Terminal Capacity (Main Circuit): 1.5 - 10 mm²
• Handle Type: Direct mounted, Black, 1-0 position
• Degree of Protection (IP): IP20 (Terminals), IP65 (Front with Handle)
• Standards: IEC 60947-3
• Frame Size: G1
• Electrical Durability: 2000 cycles (AC-23A)
• Mechanical Durability: 15000 cycles
• Rated Short-time Withstand Current (Icw): 0.5 kA for 1 s
• Rated Peak Withstand Current (Ipk): 1.5 kA
• Power Loss: 1.5 W

Final note

Engineered for reliability and compliance, the ABB OTOT25G1-4BSN1Plus is a smart choice for professionals seeking a compact, high-performance switch-disconnector that meets rigorous international standards.