ABB OS30FAJ12 - 30A, Fused Disconnect Switch

Meet the ABB OS30FAJ12, a 30A fused disconnect switch engineered for safe, reliable electrical isolation in demanding industrial and commercial settings. Designed to handle disconnection under load and to integrate seamlessly with lockout/tagout programs, this device keeps maintenance teams protected and operations running smoothly.

Why this fused disconnect stands out

• Direct-line protection with fast isolation: The fused design provides immediate overcurrent protection and a clean open circuit when fuses operate, reducing arc exposure during maintenance.
• 30A rating tailored for machinery and feeders: Ideal for motor feeders, pumps, conveyors, and control circuits where a robust, yet compact disconnect is needed.
• Lockout/tagout ready: Built to accept padlocks and lockout devices, helping you meet safety standards and keep crews safe during service.
• Durable, purpose-built enclosure: Built by ABB for industrial environments, delivering long-term reliability in everyday wear-and-tear conditions.
• Dependable under-load operation: The switch guarantees a secure disconnection even when the circuit is live, improving maintenance safety and system uptime.

Key specifications

• Brand: ABB
• Model: OS30FAJ12
• Amperage: 30A
• Type: Fused Disconnect Switch

Ideal use cases

Use the ABB OS30FAJ12 in motor control centers, service entrances, process lines, and equipment bays where reliable isolation is essential. It supports routine servicing, preventive maintenance, and safety procedures without compromising system integrity.

Practical guidance for best results

• Pair with the appropriate fuse rating for your load profile and replace fuses with the same rating to maintain protection.
• Follow lockout/tagout protocols; ensure each padlock and tag is clearly identified and secured before service.
• Inspect connections and enclosure integrity periodically to detect corrosion, wear, or looseness that could affect performance.