Why Choose the ABB 4/3EF21 Raising Frame?
The ABB 4/3EF21 is a raising frame for two-leaf fire protection facing doors within compatible ABB electrical sub-distribution systems. Supplied under ABB order code 2CPX041084R9999, it is designed for installations requiring a four-field-width frame with a specified 90-minute fire resistance.
The frame measures 1295 mm wide × 1345 mm high × 22 mm deep, with internal dimensions of 1065 mm wide × 1115 mm high × 22 mm deep. Its 22 mm depth provides additional spacing between the wall and a compatible ABB two-leaf fire protection facing door.
Designed for installation height 3 and field width 4, the 4/3EF21 forms part of ABB's coordinated fire protection enclosure system. Its A2-classified construction and 90-minute fire-resistance specification make it suitable for professionally engineered indoor electrical sub-distribution installations.
Key Advantages
- Purpose-designed raising frame for two-leaf fire protection facing doors.
- Specified 90-minute fire resistance.
- Provides an additional 22 mm of installation depth.
- Large 1295 × 1345 mm external frame dimensions.
- Designed for field width 4 and installation height 3.
- Non-combustible A2 material classification.
- Compatible system component for ABB fire-protected electrical sub-distribution installations.
- Provides a coordinated solution where additional clearance is required behind a compatible facing door.
Key Features
- ABB 4/3EF21 raising frame.
- Designed for two-leaf fire protection facing doors.
- 1295 mm external width.
- 1345 mm external height.
- 22 mm depth.
- 1065 mm internal width.
- 1115 mm internal height.
- 90-minute fire resistance.
- A2 material classification.
- Field width 4.
- Installation height 3.
- Supplied as 1 piece.
- Part of the ABB fire protection enclosure system.
- ABB order code 2CPX041084R9999.
Additional Clearance for Fire Protection Facing Doors
The ABB 4/3EF21 provides additional installation depth between a compatible two-leaf fire protection facing door and the underlying electrical distribution assembly. Its 22 mm depth enables the facing-door arrangement to accommodate installations requiring extra clearance while remaining within the coordinated ABB fire protection system.
With external dimensions of 1295 × 1345 × 22 mm and internal dimensions of 1065 × 1115 × 22 mm, the frame is specifically configured for installation height 3 and field width 4. Its 90-minute fire-resistance specification makes it suitable for corresponding fire-protected electrical sub-distribution applications.
Typical Applications
- ABB two-leaf fire protection facing-door installations.
- Fire-protected electrical sub-distribution assemblies.
- Installations requiring additional clearance behind a facing door.
- Commercial building electrical distribution systems.
- Public and institutional building electrical installations.
- Industrial electrical distribution assemblies.
- Four-field-width ABB fire protection installations.
- Applications requiring a compatible 90-minute fire-resistant raising frame.
