Overview
The ABB OT100F3 is a 3-pole, front-operated, base-mounted, DIN-rail-mountable switch-disconnector from the proven SWITCHLINE series. This non-fusible disconnect switch delivers reliable performance in motor control, service entrance equipment, panelboards, switchboards, industrial control equipment, and motor control centers. With robust construction and field-tested design, it provides the flexibility and safety required for demanding industrial applications.
Key Features
- Front-operated with handle interlock to prevent door opening when switch is in ON position
- Finger-proof dead-front construction with terminal shrouds for enhanced safety
- Protected clamp terminals reduce risk of contact with live parts
- Padlockable handle in OFF position—accommodate up to three padlocks
- Flexible mounting: DIN-rail, door, or base-mounted configurations
- Flange, side, or through-door installation options
- Wielded contact protection for improved durability
- Top or bottom incoming power feed compatibility
Technical Specifications
- Rated Current: 100 A
- Rated Voltage: 600 VAC (750 V insulation)
- Poles: 3-pole configuration
- Short-Circuit Rating: 200 kA
- Horsepower Rating: 50 hp
- Terminal Type: Screw Terminal (front protected clamp terminals)
- Mounting: Surface/base mount, DIN-rail mountable
- Ambient Temperature Rating: 40 °C
- Dimensions: 70 mm H × 100 mm W × 74 mm D
- Series: OT SWITCHLINE
- Standards: UL E63822, CSA LR58247, UL 98
Typical Applications
The OT100F3 excels in:
- Motor disconnect switches and service entrance equipment
- Industrial control panel disconnects
- Motor control centers (MCC)
- Panelboards and switchboards
- General industrial switching and machine control
Compatibility & Replacements
The ABB OT100F3 is part of the extensive SWITCHLINE family, which spans 16 different amperage sizes from 16A to 3150A with 2, 3, 4, 6, or 8-pole configurations. Handle and shaft are not included—source separately as required. This design allows drop-in replacement in existing installations and provides path for system scaling as facility needs grow.










