OT400U03P ABB 400 A 3-Pole UL Non-Fusible Disconnect Switch

Why Choose the ABB OT400U03P UL Non-Fusible Disconnect Switch?

The ABB OT400U03P is a heavy-duty 400 A, 3-pole UL/CSA non-fusible disconnect switch designed for dependable switching and isolation in demanding low-voltage electrical systems. Part of the established ABB OT switch-disconnector range, it provides a robust disconnecting solution for industrial power distribution, machinery, switchboards and electrical control equipment.

The OT400U03P features a front-operated, base-mounted configuration and is rated at 400 A up to 600 V AC under UL/CSA. Its three-pole construction is suited to three-phase applications, while compliance with UL 98 and CSA C22.2 No. 4 supports use in installations requiring recognised North American non-fusible disconnect switching.

Unlike the OT400U03 variant, the OT400U03P is supplied with the operating handle and shaft. The package includes a black OHB95J12 handle, OXP12X185 shaft and M10 × 30 terminal bolts, providing the principal operating accessories required for enclosure and switchboard integration.

Key Advantages

• Heavy-duty 400 A non-fusible disconnect switch.
• 3-pole configuration for three-phase switching and isolation.
• UL 98 and CSA C22.2 No. 4 approved for North American applications.
• 400 A rating at up to 600 V AC under UL/CSA.
• Front-operated, base-mounted construction for panel and switchboard integration.
• High three-phase motor ratings of 125 HP at 240 V, 250 HP at 480 V and 350 HP at 600 V.
• Black IP65 operating handle and shaft included.
• Terminal bolt kit included for the main electrical connections.

Key Features

• ABB OT400U series.
• 400 A UL/CSA ampere rating.
• 3-pole switching configuration.
• Non-fusible disconnect switch.
• Front-operated configuration.
• Base-mounted construction.
• 600 V AC maximum operating voltage under UL/CSA.
• 1000 V IEC rated operational voltage.
• 1000 V rated insulation voltage (Ui).
• 12 kV rated impulse withstand voltage (Uimp).
• 15 kA rated short-time withstand current for 1 s.
• Black OHB95J12 IP65 handle included.
• OXP12X185 operating shaft included.
• M10 × 30 terminal bolts included.
• Complies with UL 98, CSA C22.2 No. 4 and IEC 60947-3.

Reliable UL/CSA Non-Fusible Isolation for Industrial Systems

The ABB OT400U03P provides a robust means of manually switching and isolating electrical circuits without incorporating fuses into the disconnect switch itself. Its 400 A, 3-pole configuration is suited to substantial three-phase loads in industrial power distribution, machinery and electrical control applications where a dedicated disconnecting means is required.

With UL/CSA three-phase motor ratings of 125 HP at 240 V AC, 250 HP at 480 V AC and 350 HP at 600 V AC, the OT400U03P is suitable for demanding motor and machinery installations. The included IP65 handle, operating shaft and terminal bolts simplify integration into suitable electrical enclosures and switchgear assemblies.

Typical Applications

• Industrial power distribution systems.
• UL 98 non-fusible disconnect applications.
• Three-phase machinery isolation.
• Industrial motor disconnecting applications.
• Main and sub-distribution switchboards.
• Manufacturing and production equipment.
• Industrial control cabinets and electrical enclosures.