Extron EWB 104 (part number 60-455-03) — white four-gang external wall box from Extron's legacy 60-455 numbering, now a retired part.

The EWB 104 puts a four-gang Extron faceplate on a wall surface when no back box exists and none can be cut in. Its steel body screws flat to the wall, opens 8.2 inches of plate width and retains 2.50 inches of depth for connectors, adapters and a service loop. Cable can be brought in through surface raceway using the end knockouts, or straight through the rear from inside the wall. Grounding is handled by a PEM #6-32 insert and the screw shipped with the enclosure.

Key Capabilities

• Four-gang aperture for Extron wallplates, AAP frames and control panels
• Steel enclosure at 4.50 in H x 8.2 in W x 2.50 in D (11.4 x 20.8 x 6.4 cm)
• Four raceway knockouts — two small, two large
• Six wall mounting holes rated for fasteners up to 1/4 inch
• White finish — the -03 version of the legacy 60-455 series
• Listed to c-UL and UL; RoHS and WEEE compliant

Where It Is Used

Classrooms, clinics, hotel meeting rooms and open-plan offices with light-coloured walls, where a white box reads as part of the finish. A standard fit alongside white surface raceway on refurbishment projects.

Specifications at a Glance

• Configuration: four-gang, wall mount
• Material: steel
• Product weight: 1.4 lbs (0.6 kg)
• Shipping weight: 3 lb (2 kg)
• Warranty: 3 years parts and labor

Also referenced as Extron EWB104, EWB-104, part number 6045503.