Overview
The ABB OT100F3 (part number 1SCA105004R1001) is a robust, non-fused disconnect switch engineered for industrial control panels, motor disconnects, and switchboard applications. With a continuous current rating of 100A and voltage rating of 600VAC, this 3-pole switch-disconnector delivers compact performance and safety-critical visibility. Handle and shaft are not included—order separately if needed.
Key Features
- Visible Contacts (100A+): Front-mounted design allows visual confirmation of contact position, improving safety and diagnostics in live installations.
- Knife Contact Technology: Short current path minimizes power loss and heat generation compared to traditional terminal designs.
- High Mechanical Endurance: Rated for up to 20,000 operating cycles, extending service life and reducing replacement costs.
- Finger-Proof Dead-Front: Protected clamp terminals and terminal shrouds eliminate risk of accidental contact with live parts.
- Flexible Mounting: DIN-rail mountable or base-mounted configuration for any enclosure orientation; operates equally well with top or bottom incoming power feed.
- Padlock-Ready: Handle supports up to three padlocks in the OFF position for lockout/tagout (LOTO) safety protocols.
Technical Specifications
- Poles: 3-pole
- Current Rating: 100A (AC)
- Voltage Rating: 600VAC (750V maximum contact voltage)
- Short Circuit Rating: 200 kA
- Horsepower Rating: 50 hp
- Terminal Style: Screw (protected clamp terminals)
- Mounting Type: DIN Rail / Base Mount
- IP Rating: IP20
- Operating Temperature: 40°C ambient (IEC rated)
- Mechanical Cycles: Up to 20,000
- Standards: IEC 60947-3, UL 508 (UL E63822), CSA (LR58247)
- Construction: 3-pole, front-operated, base-mounted switch-disconnector with protected clamp terminals
Typical Applications
The ABB OT100F3 is ideal for:
- Motor disconnects on service entrance and panelboards
- Industrial control equipment and motor control centers (MCCs)
- Switchboard and distribution panel main disconnects
- Factory automation, HVAC, and machinery control systems
- Any application requiring safe, visible load isolation at 100A/600VAC
Compatibility & Replacements
The OT100F3 is part of ABB’s OT Series switch-disconnectors, which range from 16A to 3,150A with 2, 3, 4, 6, or 8-pole options. The base unit (1SCA105004R1001) does not include a handle or shaft; order the OT100F3P variant (1SCA105009R1001) if you need a handle included. Common alternative handle and accessory kits are available through ABB distributors. For drop-in replacement evaluation, consult with your ABB distributor or review UL/CSA cross-reference lists for equivalent 100A/600VAC non-fused switch-disconnectors from competing manufacturers.
