ABB ot16f3 isolator 16amp load break switch 3pole

Why Choose the ABB OT16F3 Switch Disconnector?

The ABB OT16F3 is a compact and highly reliable 3-pole switch disconnector designed for the safe isolation and switching of low-voltage electrical circuits. As part of the proven ABB OT Series, it provides dependable manual isolation for industrial control panels, machinery, switchboards and power distribution systems where safety and reliability are essential.

The OT16F3 features a front-operated, base-mounted design and can also be DIN rail mounted, making it suitable for a wide range of panel building applications. Protected clamp terminals provide secure cable connections, while the modular construction simplifies installation and allows the switch to be configured with compatible handles and shafts sold separately.

With a 16 A operational current, 3-pole configuration and support for voltages up to 750 V AC, the ABB OT16F3 is ideal for motor isolation, machinery disconnecting and general-purpose switching duties in commercial and industrial electrical installations. The operating handle and shaft are supplied separately, allowing flexibility for enclosure-mounted installations.

Key Advantages

• Compact 3-pole switch disconnector for industrial applications.
• 16 A operational current with excellent switching performance.
• Front-operated, base-mounted construction.
• Suitable for DIN rail or base mounting.
• Protected clamp terminals improve installation safety.
• Compatible with ABB external handles and operating shafts.

Key Features

• ABB OT Series switch disconnector.
• 3-pole non-fused isolator.
• 16 A IEC operational current.
• Rated insulation voltage 750 V AC.
• 8 kV impulse withstand voltage.
• Protected screw clamp terminals.
• DIN rail and base mounting capability.
• Handle and operating shaft supplied separately.

Technical Specifications

• Manufacturer: ABB
• Series: OT Series
• Model: OT16F3
• Product ID: 1SCA104811R1001
• Product type: Switch disconnector
• Number of poles: 3
• Rated operational current (AC-21A): 16 A
• Rated operational current (AC-22A): 16 A
• Rated operational current (AC-23A): 10 A at 690 V AC
• Rated operational voltage: Up to 750 V AC
• Rated insulation voltage (Ui): 750 V
• Rated impulse withstand voltage (Uimp): 8 kV
• Thermal current (Ith): 25 A
• Protection rating: IP20
• Mounting type: Base or 35 mm DIN rail mounting
• Dimensions (H × W × D): approx. 68 × 35 × 56 mm
• Weight: approx. 0.09 kg

Reliable Electrical Isolation for Industrial Applications

Switch disconnectors provide a safe and visible means of isolating electrical equipment during maintenance, servicing and emergency shutdown procedures. The ABB OT Series has been designed to deliver long service life, low power loss and dependable switching performance across a wide range of industrial applications.

The ABB OT16F3 is suitable for motor isolation, machinery disconnecting, control panels, OEM equipment and low-voltage power distribution. Its compact dimensions and flexible mounting options make it an excellent choice where installation space is limited while maintaining compliance with international switching standards.

Typical Applications

• Industrial control panels.
• Motor isolation and disconnecting.
• Machine building and OEM equipment.
• Electrical switchboards.
• Power distribution systems.
• Maintenance isolation points.

Trusted by Panel Builders Worldwide

ABB OT Series switch disconnectors are trusted by electrical contractors, panel builders and automation engineers for providing safe, reliable isolation across industrial machinery and low-voltage electrical installations.