Alpha 3403 — 3-Wire Apartment Intercom Surface Station for Chicago
Model / Series: 3403
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 Alpha AF-1000 amplifier (3- to 6-wire apartment systems). The Chicago choice for legacy 3-wire apartment intercom in-unit stations — replacement / takeover deployments at older multifamily buildings.
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. The Chicago choice for legacy 3-wire apartment intercom in-unit stations — replacement and takeover deployments at older multifamily buildings.
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 Chicago metropolitan area 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
The Alpha AM492 is a vandal-resistant modular speaker entrance panel for simplex (1-way) loudspeaker apartment intercom systems — accommodates up to 18 push buttons, mylar voice-frequency-response speaker behind a louvered grille, natural-anodized-aluminum finish, flush or surface mount. Configurations available with 6, 8, 10, 12, 16, or 18 buttons (some with built-in postal-release option). The Chicago choice for the lobby / entrance panel side of legacy Alpha apartment intercom systems.
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Alpha IS204A
The Alpha IS204A is a 4-wire universal apartment intercom station — surface or flush mount, white high-impact ABS plastic faceplate that blends with any decor. TALK / LISTEN / DOOR push-button control with natural, clear voice communication and positive door release. Mounts over a single-gang electrical back box, mounting ring, or Alpha IH101 / IH102 flush housing. The Chicago choice for modernizing older apartment in-unit stations to a universal 4-wire platform.
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Alpha IS407S
The Alpha IS407S is a vandal-resistant stainless-steel 4-wire apartment intercom station — surface mount, designed for high-abuse and high-traffic locations where the plastic IS204A would be insufficient. The Chicago choice for service / staff entries, building common areas, and properties where the in-unit intercom station needs durability beyond standard plastic faceplates.
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