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OT400U03 ABB 400 A 3-Pole UL 98 Non-Fusible Disconnect Switch
ABB OT400U03 is a 400 A 3-pole front-operated, base-mounted non-fusible disconnect switch rated to 600 V AC under UL/CSA and compliant with UL 98, CSA C22.2 No. 4 and IEC 60947-3 for industrial electrical switching and isolation.
£495.71
Why Choose the ABB OT400U03 UL Approved Non-Fusible Disconnect Switch?
The ABB OT400U03 is a heavy-duty 400 A, 3-pole 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 is specifically designed for applications requiring a UL 98 approved disconnect.
The OT400U03 features a front-operated, base-mounted configuration and carries a 400 A UL/CSA ampere rating at up to 600 V AC. Its three-pole construction makes it suitable for three-phase industrial power distribution, machinery disconnecting means, switchboards and electrical control equipment.
The switch is supplied without an operating handle and shaft, allowing compatible ABB operating accessories to be selected separately to suit the enclosure and installation. Terminal bolts are included, and the switch complies with UL 98, CSA C22.2 No. 4 and IEC 60947-3.
Key Advantages
- Heavy-duty 400 A non-fusible disconnect switch.
- 3-pole configuration for three-phase switching and isolation.
- UL 98 approved for applications requiring a UL-rated disconnect switch.
- CSA C22.2 No. 4 compliant.
- 600 V AC maximum operating voltage under UL/CSA ratings.
- Front-operated, base-mounted design for switchboard and panel integration.
- High motor-load ratings of up to 350 HP at 600 V AC.
- Handle and shaft selected separately to suit the enclosure installation.
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.
- Terminal bolt kit included.
- Operating handle and shaft not included.
- Complies with UL 98, CSA C22.2 No. 4 and IEC 60947-3.
Reliable UL Approved Isolation for Industrial Systems
The ABB OT400U03 provides a robust UL 98 non-fusible disconnecting solution for manually switching and isolating electrical circuits. Its 400 A rating and three-pole construction make it suitable for substantial three-phase loads where a dedicated disconnecting means is required.
With horsepower ratings of 125 HP at 240 V AC, 250 HP at 480 V AC and 350 HP at 600 V AC, the OT400U03 is well suited to industrial motor and machinery applications. Its base-mounted design and separately selected handle and shaft also provide flexibility when integrating the switch into 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.
- Electrical switchboards and distribution panels.
- Manufacturing and production equipment.
- Industrial control cabinets and electrical enclosures.
Technical Specifications
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| Poles | 3-pole | |
|---|---|---|
| Current | 400 A | |
| Device Type | Switch Disconnector | |
| Product Series | ABB OT | |
| Series | OT400U | |
| ABB order code | OT400U03 | |
| ABB product ID | 1SCA022747R6490 | |
| ABB product group | 311027-OT Switches | |
| Product type | Non-fusible disconnect switch | |
| Rated current | 400 A | |
| UL/CSA ampere rating | 400 A | |
| Number of poles | 3 | |
| Maximum operating voltage UL/CSA | 600 V AC | |
| Rated operational voltage IEC | 1000 V | |
| Rated insulation voltage (Ui) | 1000 V | |
| Rated impulse withstand voltage (Uimp) | 12 kV | |
| Rated short-time withstand current (Icw) | 15 kA for 1 s | |
| UL three-phase horsepower rating at 240 V AC | 125 HP | |
| UL three-phase horsepower rating at 480 V AC | 250 HP | |
| UL three-phase horsepower rating at 600 V AC | 350 HP | |
| Operation | Front operated | |
| Mounting type | Base mounting | |
| Handle | Not included | |
| Operating shaft | Not included | |
| Terminal bolt kit | Included | |
| Product dimensions (W × H × D) | 221 × 220 × 85 mm | |
| Product weight | approx. 3.06 kg | |
| EAN / UPC | 6417019242613 | |
| Standards | UL 98 / CSA C22.2 No. 4 / IEC 60947-3 |
Frequently Asked Questions
What is the ABB OT400U03 used for?
The ABB OT400U03 is a 400 A, 3-pole non-fusible disconnect switch designed for switching and isolation in industrial power distribution, machinery, motor and switchgear applications.
Is the ABB OT400U03 UL approved?
Yes. The OT400U03 complies with UL 98 and is rated at 400 A up to 600 V AC under its UL/CSA ratings. It also complies with CSA C22.2 No. 4 and IEC 60947-3.
How many poles does the ABB OT400U03 have?
The ABB OT400U03 has a 3-pole configuration, making it suitable for simultaneous switching and isolation of all three phases in a three-phase electrical system.
What are the horsepower ratings of the ABB OT400U03?
The OT400U03 has UL three-phase motor ratings of 125 HP at 240 V AC, 250 HP at 480 V AC and 350 HP at 600 V AC.
Are the handle and shaft included with the ABB OT400U03?
No. The operating handle and shaft are not included with the OT400U03 and must be selected separately to suit the installation. The terminal bolt kit is included.
Trusted UL-Rated Switching from ABB
ABB OT non-fusible disconnect switches provide dependable industrial switching and isolation, with the OT400U03 combining a 400 A rating, three-pole construction, UL 98 approval and 600 V AC UL/CSA capability for demanding electrical installations.
