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.

Description

Altronix T2428175C 24/28VAC 175VA Open Frame Transformer

The Altronix T2428175C is an open frame transformer rated for 175VA output, delivering selectable 24VAC or 28VAC secondary voltage from a 115VAC primary input. This unit provides stable, regulated power for security systems, access control equipment, and alarm installations requiring dual-voltage operation capability.

Key Features

  • 175VA maximum output capacity
  • Selectable 24VAC or 28VAC secondary voltage
  • 115VAC primary input
  • Open frame construction for flexible mounting
  • Lifetime Limited Warranty coverage

Applications

  • Access control power supplies
  • Alarm system installations
  • Security equipment backup power
  • Multi-voltage security infrastructure deployments

Specifications

  • Primary Input Voltage: 115VAC
  • Secondary Output Voltage: 24VAC or 28VAC (selectable)
  • Output Capacity: 175VA
  • Form Factor: Open Frame
  • Warranty: Lifetime Limited Warranty
Specifications
Product Type: Enclosure
Input Voltage: 115VAC
Output Voltage: 24/28VAC
Max Current: 175VA
Warranty: Lifetime
Type: Enclosure
Voltage AC: 24VAC
Q&A
Reviews
Have Questions?

Altronix T2428175C 24/28VAC 175VA Open Frame Transformer

$272.84
$271.99

RELATED PRODUCTS

Save $0.68
Altronix T28140D 175VA 28VAC Open Frame Transformer
Add to Cart The item has been added

Altronix T28140D

Altronix T28140D 175VA 28VAC Open Frame Transformer

175VA 28VAC open frame transformer for security control systems

  • 175VA at 28VAC with 6.2A secondary current supports moderate-load access control deployments.
  • UL Listed open frame design integrates directly into enclosures and control panels without adapters.
  • Converts 115VAC input to 28VAC output, powering card readers and security credential devices reliably.
Usually Ships in 2-3 Weeks Free shipping over $499
$138.67 $137.99 Save $0.68
The item has been added Add to quote
$138.67 $137.99 Save $0.68
Save $0.68 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
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
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
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
The item has been added Add to quote
$73.26 $72.99 Save $0.27
Save $0.27 Add to cart Add to quote

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