Altronix T28140D 175VA 28VAC Open Frame Transformer
Altronix T28140D 175VA 28VAC Open Frame Transformer
Altronix T28140D 175VA 28VAC Open Frame Transformer - image 2
Altronix T28140D 175VA 28VAC Open Frame Transformer - image 3
Altronix T28140D 175VA 28VAC Open Frame Transformer
Altronix T28140D 175VA 28VAC Open Frame Transformer
Product images are provided for reference and may not represent the exact model, configuration, or included components.

No Bots, Just Experts

Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.

Get Free Pre-Sales Support Buy Design Hours ($175/hr)
Description

Altronix T28140D 175VA 28VAC Open Frame Transformer

The Altronix T28140D is a 175VA open frame transformer designed for security infrastructure applications requiring reliable 28VAC output. This UL Listed unit converts standard 115VAC input to 28VAC, providing the regulated low-voltage power essential for access control systems, card readers, and integrated security devices. The open frame construction allows for flexible mounting in equipment enclosures and control panels.

Key Features

  • 175VA capacity for moderate-load security applications
  • 28VAC output from 115VAC input voltage
  • Open frame design for direct enclosure integration
  • UL Listed for code compliance
  • 6.2A secondary current rating
  • Lifetime Limited Warranty

Applications

  • Access control system power distribution
  • Card reader and credential device networks
  • Security panel auxiliary power supplies
  • Low-voltage control circuit power

Specifications

  • MPN: T28140D
  • Input Voltage: 115VAC
  • Output Voltage: 28VAC
  • Power Rating: 175VA
  • Secondary Current: 6.2A
  • Form Factor: Open Frame
  • Certification: UL Listed
  • Warranty: Lifetime Limited
Expert Analysis
Specifications
Approvals: UL Listed
Input Voltage: 115VAC
Form Factor: Open Frame
Output Voltage: 28VAC
Warranty: Lifetime
Type: Enclosure
Q&A
Reviews
Product Video

Altronix T28140D 175VA 28VAC Open Frame Transformer

$138.67
$137.99
Add to Cart

RELATED PRODUCTS

Save $0.85
Altronix T2428175C 24/28VAC 175VA Open Frame Transformer
Add to Cart The item has been added

Altronix T2428175C

Altronix T2428175C 24/28VAC 175VA Open Frame Transformer

115VAC to 24/28VAC open frame transformer, 175VA for security systems

  • Selectable 24VAC or 28VAC secondary lets one unit serve dual-voltage security loads.
  • 175VA output capacity handles access control panels and alarm systems simultaneously.
  • Open frame construction simplifies integration into custom enclosures and control cabinets.
Usually Ships in 2-3 Weeks Free shipping over $499
$272.84 $271.99 Save $0.85
Add to Cart
The item has been added Add to quote
$272.84 $271.99 Save $0.85
Save $0.85 Add to cart Add to quote
Save $127.28
Altronix T2428175C220 175VA 24/28VAC Transformer
Add to Cart The item has been added

Altronix T2428175C220

Altronix T2428175C220 175VA 24/28VAC Transformer

175VA transformer, 220VAC input, selectable 24/28VAC output

  • 220VAC input eliminates step-down transformers in EU, Asian, and Middle East sites.
  • Selectable 24/28VAC output supports legacy devices and high-current locks from one unit.
  • CAB4 wall-mount enclosure keeps HV components enclosed in retrofit closets and cabinets.
Usually Ships in 2-3 Weeks Free shipping over $499
$284.27 $156.99 Save $127.28
Add to Cart
The item has been added Add to quote
$284.27 $156.99 Save $127.28
Save $127.28 Add to cart Add to quote
Altronix T2428175 Open Frame Transformer 175VA
Add to Cart The item has been added

Altronix T2428175

Altronix T2428175 Open Frame Transformer 175VA

175VA step-down transformer for access control and security systems

  • 115VAC primary steps down to 24VAC or 28VAC, covering mixed-voltage device installations.
  • 175VA capacity at 7.25A supports multiple door strikes, mag-locks, and auxiliary loads.
  • Open frame design integrates directly into enclosures and control panels without added housing.
Usually Ships in 2-3 Weeks Free shipping over $499
$185.99
Add to Cart
The item has been added Add to quote
$185.99
Add to cart Add to quote
Save $0.97
Altronix T16175 16VAC 175VA Open Frame Transformer
Add to Cart The item has been added

Altronix T16175

Altronix T16175 16VAC 175VA Open Frame Transformer

220VAC to 16VAC open frame transformer, 175VA for security systems

  • Converts 220VAC input to 16VAC output, supporting international facility deployments.
  • 175VA capacity handles multiple electric locks or access control devices on one output.
  • Open frame form factor integrates cleanly into standard security cabinets and enclosures.
Usually Ships in 2-3 Weeks Free shipping over $499
$160.96 $159.99 Save $0.97
Add to Cart
The item has been added Add to quote
$160.96 $159.99 Save $0.97
Save $0.97 Add to cart Add to quote
Save $0.27
Altronix T2856 28VAC 56VA Open Frame Transformer
Add to Cart The item has been added

Altronix T2856

Altronix T2856 28VAC 56VA Open Frame Transformer

28VAC 56VA open frame transformer for security system auxiliary power

  • Delivers 28VAC at 2A to reliably power door strikes and magnetic locks.
  • 115VAC input with 56VA capacity suits small-to-medium access control installs.
  • Open frame design simplifies compact panel mounting in tight enclosures.
Usually Ships in 2-3 Weeks Free shipping over $499
$73.26 $72.99 Save $0.27
Add to Cart
The item has been added Add to quote
$73.26 $72.99 Save $0.27
Save $0.27 Add to cart Add to quote

Looking for more Altronix products? Shop the full Altronix catalog →

System Design, Deployment & Technical Support

Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.

Fixed scope • Fixed price

System Design Assistance

  • Get help validating product compatibility
  • Coverage requirements
  • Storage planning and deployment architecture before you buy.
Request Design Help

Deployment & Configuration Support

  • Access fixed-scope support for rollout planning
  • User setup guidance
  • Migration and system standardization across single-site or multi-site deployments
View Support Services

Guides, Tools & Calculators

  • PoE requirements
  • Storage retention
  • Camera selection and deployment methodology
Open Technical Resources
!