Altronix T2856 28VAC 56VA Open Frame Transformer

The Altronix T2856 is a 28VAC 56VA open frame transformer designed for security and access control systems requiring reliable, regulated auxiliary power. This unit accepts 115VAC input and delivers 28VAC output at 2 amperes, making it suitable for powering door strikes, magnetic locks, and control modules in small to medium installations.

Key Features

28VAC output at 56VA capacity

115VAC input voltage

2 ampere maximum output current

Open frame design for compact mounting

Lifetime Limited Warranty

Applications

Door strike and magnetic lock power supply

Access control system auxiliary voltage

Small security equipment voltage conversion

Specifications

Model: Altronix T2856

Input Voltage: 115VAC

Output Voltage: 28VAC

Power Capacity: 56VA

Maximum Output Current: 2A

Warranty: Lifetime Limited Warranty

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.

$74.19 $73.99 Save $0.20

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Altronix

SKU: T2856C

Altronix T2856C Transformer - 28VAC/56VA (2 amp), encl

115VAC to 28VAC step-down transformer, 56VA enclosed unit

Converts 115VAC to 28VAC at 56VA/2A to power access control and alarm panels.
Enclosed metal housing provides mechanical protection for fixed indoor deployments.
Lifetime Limited Warranty reduces long-term replacement risk in permanent installations.

$169.43 $93.99 Save $75.44

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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.

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Altronix

SKU: 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.

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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.

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