Alpha 3403 — 3-Wire Apartment Intercom Surface Station for Chicago
Model / Series: 3403
White 3-wire Alpha apartment intercom station with TALK, LISTEN, and DOOR buttons — the direct swap for worn-out units in AF-1000 buildings.
We don't just ship boxes — this goes in as part of our video intercom installation in Chicago work. First time working with us? Here’s why Chicago buildings pick Vidimost.
Specifications
- Brand
- Alpha
- Series
- Alpha Apartment Intercom Stations
- Model
- 3403
- Form Factor
- 3-wire surface-mount apartment intercom station
- Buttons (per Alpha)
- TALK / LISTEN / DOOR
- Material (per Alpha)
- White plastic faceplate
- Dimensions (per Alpha)
- 6.13 in W × 7.00 in H × 0.58 in D (156 × 178 × 15 mm)
- Back Box Compatibility (per Alpha)
- BB-30 flush back box, BB-51 surface back box, or RH6 adapter plate
- System Compatibility (per Alpha)
- Alpha AF-1000 amplifier (3-, 4-, 5-, 6-wire apartment systems)
Best Fit & Recommended For
Alpha 3403 — 3-Wire Apartment Intercom Surface Station
The Alpha 3403 is a 3-wire surface-mount apartment intercom station — TALK / LISTEN / DOOR push buttons for resident-side use, white plastic faceplate, 6.13 in W × 7.00 in H × 0.58 in D. Surface-mounts on a BB-30 flush back box, BB-51 surface back box, or RH6 adapter plate. Compatible with the Alpha AF-1000 amplifier that supports 3- to 6-wire apartment systems. Most of these go in one or two at a time — a station dies in a 1920s walk-up and the board wants a match for the other thirty units, not a whole new system.
What’s Confirmed by the Official Alpha Spec
These specifications come from alphacommunications.com Alpha 3403 product page:
- Type: 3-wire surface station, plastic
- Dimensions: 6.13 × 7.00 × 0.58 in (156 × 178 × 15 mm)
- Mounting: surface mount on BB-30 / BB-51 / RH6
- System compatibility: Alpha AF-1000 amplifier (3–6 wire apartment systems)
When Alpha 3403 Fits
Pick the Alpha 3403 when the building is on a legacy Alpha AF-1000 3-wire apartment intercom platform and the project is replacement / takeover of in-unit stations. For a 4-wire universal station (replaceable on most older systems), see the Alpha IS204A. For a stainless-steel 4-wire variant, see the Alpha IS407S. For the matching multi-button speaker entrance panel at the building lobby, see the Alpha AM492.
Where the Alpha 3403 Wins in Chicago
- Multi-tenant residential apartment in-unit station (legacy 3-wire systems)
- Legacy 3-wire apartment intercom takeover / replacement
- Property-management standard station for AF-1000 sites
- HOA / condo building unit station
- Mid-rise / high-rise residential in-unit station
- Hospitality boutique-property guest-room station
- Older Chicago apartment building modernization
Local Chicago Coverage
Vidimost installs the Alpha 3403 across the full city of Chicago for legacy 3-wire apartment intercom in-unit station deployments.
Recommended Pairings
- Alpha AM492 — multi-button speaker entrance panel
- Alpha IS204A, Alpha IS407S — newer 4-wire siblings
- BB-30, BB-51, or RH6 mounting hardware (specified per project)
- AF-1000 amplifier (head-end, specified per building)
Professional Installation by Vidimost
Vidimost LLC installs the Alpha 3403 across Chicago for legacy apartment intercom deployments. Full-scope service includes site walkthrough, in-unit back-box verification, AF-1000 head-end testing, station replacement / addition, and door-release verification. Contact us for a free site walkthrough and quote.
Frequently Installed Together
Alpha
Alpha AM492
Anodized-aluminum Alpha lobby speaker panel, up to 18 buzzer buttons — the entrance side of an older apartment intercom system.
View →Alpha
Alpha IS204A
Alpha's white 4-wire apartment intercom station, surface or flush mount — the standard pick when a building upgrades its in-unit stations.
View →Alpha
Alpha IS407S
Stainless-steel Alpha 4-wire intercom station built for stairwells, service doors, and common areas where plastic faceplates get smashed.
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