Hammond Heath Trine Class 2 Transformer EM57580

Overview

The Hammond EM57580 is a dry-type Class 2 transformer engineered to safely step down standard 120V AC household voltage to low-voltage 16V AC for doorbell systems and chimes. This compact unit provides 10VA of output power, making it suitable for direct-wired doorbells and audio/visual signaling devices that require safe, low-voltage operation.

Key Features

• Class 2 safety-rated design for reliable low-voltage control and signaling
• 120V primary / 16V secondary step-down configuration
• 10VA output capacity supports standard doorbell loads
• Dry-type construction—no liquid cooling required
• Compact footprint suitable for in-wall or cabinet mounting
• 60 Hz operation standard for North American applications

Technical Specifications

Typical Applications

• Direct-wired doorbell systems
• Door chimes and signaling devices
• Low-voltage control circuits
• Audio/visual alert systems requiring safe isolation
• Replacement units for existing 120V → 16V installations

Compatibility & Replacements

Compatible With

• Standard North American 120V AC household wiring (60 Hz)
• Direct-wired doorbell mechanisms requiring 16V AC input
• Low-voltage signaling and control systems
• Class 2 circuit installations (UL Listed)

Replaces / Drop-In Replacement For

This unit is a direct replacement for any doorbell system or low-voltage control application originally designed for the Hammond EM57580. Verify primary and secondary voltage match your application before installation.

Works With

• Standard household electrical circuits rated for 120V AC 60 Hz service
• Direct-wired (hardwired) doorbell chimes and mechanical signaling devices
• Class 2 rated low-voltage wiring and control systems
• Thermal-overload protected doorbell systems