Altronix T2856C Transformer — 28VAC/56VA Enclosed Unit

The Altronix T2856C is a 28VAC/56VA step-down transformer supplied in an enclosed metal housing. This unit accepts 115VAC input and delivers regulated 28VAC output at 2 amps, making it suitable for powering access control systems, alarm panels, and auxiliary security devices in fixed installation environments. The enclosure design provides mechanical protection and simplified integration into standard equipment racks or wall-mounted deployments.

Key Features

115VAC to 28VAC step-down conversion

56VA capacity at 2 amp output current

Fully enclosed metal housing for protection

Standard transformer-based regulation

Lifetime Limited Warranty

Applications

Access control system power supplies

Security panel auxiliary voltage

Low-voltage device power distribution

Fixed indoor installation environments

Specifications

Input Voltage: 115VAC

Output Voltage: 28VAC

Maximum Current: 2 amp (56VA)

Enclosure: Metal housing included

Warranty: Lifetime Limited

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.

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Altronix

SKU: 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.

$284.27 $156.99 Save $127.28

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Altronix

SKU: T1656

Altronix T1656 16VAC 56VA Open Frame Transformer

16VAC 56VA open-frame transformer for access control systems

Outputs 16VAC at 56VA — powers 3–5 card readers or multiple solenoid relays concurrently.
Accepts 115VAC mains directly; no step-down conversion needed for North American installations.
Open-frame design fits inside panels or wall boxes; lifetime warranty covers the full install life.

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Altronix

SKU: T1656C

Altronix T1656C 16VAC 56VA Open Frame Transformer

220VAC to 16VAC open frame transformer for security power distribution

Converts 220VAC to stable 16VAC output to power door locks, readers, and control circuits.
56VA capacity handles multiple simultaneous low-voltage loads within a single distribution point.
UL Listed open frame design integrates into enclosures for code-compliant security installations.

$168.17 $167.99 Save $0.18

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Altronix

SKU: T2885D

Altronix T2885D 28VAC 100VA Open Frame Transformer

28VAC 100VA step-down transformer with dual 115/220VAC input

Dual 115/220VAC input supports domestic and international panel deployments.
100VA capacity drives access control boards, card readers, and device circuits.
Open frame construction mounts directly into control panels without enclosure.

$89.34 $88.99 Save $0.35

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