ABB ot25ft3 25a door mounted isolator 3 pole

Why Choose the ABB OT25FT3 Door Mounted Isolator?

The ABB OT25FT3 is a compact 3 pole door mounted load break switch disconnector rated at 25 A. It provides reliable on load switching and positive isolation for small feeders and motor circuits, making it ideal for machinery isolators, local maintenance switches and space conscious control panels where door operation is preferred.

Part of ABB’s proven OT family, the OT25FT3 brings the handle to the enclosure door for clear ON or OFF indication and safe interlocked operation. A wide range of compatible handles, shafts and auxiliaries allows you to tailor padlocking, interlocking and indication to suit your application while keeping panel layouts tidy.

Key Features

• 3 pole door mounted load break switch disconnector, 25 A.
• On load isolation for distribution and motor applications.
• Door operated mechanism with positive contact position indication.
• Door interlocking and padlockable handle options available.
• Wide accessory range including auxiliary contacts and terminal shrouds.
• Compact, space efficient arrangement for OEM and panel builder use.

Technical Specifications

• Manufacturer: ABB
• Series: OT switch disconnectors
• Model: OT25FT3
• Poles: 3
• Rated current Ie: 25 A
• Rated operational voltage Ue: up to 690 V AC
• Rated insulation voltage Ui: 690 V
• Impulse withstand Uimp: 6 kV
• Utilisation categories: AC 22 A general use, AC 23 A motor load (per ABB application data)
• Mounting: Door mounted operator with through door shaft and handle options
• Accessories: External handles, shafts, auxiliary contacts, terminal shrouds
• Terminals: Finger safe when used with designated covers
• Standards: IEC or EN 60947-3
• Notes: For DC and detailed AC 23 A ratings, refer to ABB application tables

Certifications

Conforms to IEC or EN 60947-3 switch disconnector requirements. CE and UKCA documentation plus RoHS and REACH statements are available from ABB.

Comparison and Selection Notes

Choose OT25FT3 where 3 pole isolation with door operation is required at 25 A. For base mounted versions consider OT25F3. Select the appropriate external handle and shaft to suit enclosure depth and choose door interlock or padlock features as needed.

Frequently Asked Questions

• What is the OT25FT3 used for
• Does it provide door interlocking
• Can it be padlocked in the OFF position
• Which standards does it meet
• What accessories are available

Applications

• Machine or local isolator for small three phase loads.
• Compact panel incomers and outgoing feeders with door operated switching.
• OEM and panel builder projects needing safe, visible isolation and interlocking.

Customer Reviews

Overall rating: 5 Star Product

"Door mounted layout keeps wiring neat and provides clear isolation. Easy to pair with ABB handles." - James B, Panel Builder, 5 Star Product

"Ideal for small machinery isolators. Interlock and padlock options cover our safety needs." - Amira S, Controls Engineer, 5 Star Product