Honeywell er is a 24V control circuit stepdown er designed for reliable performance in various applications. It features a 40VA capacity with 26.5V secondary terminal screws, making it suitable for precise voltage control. The er is mounted on a compact 4" x 4" plate and includes 9" primary leadwires for easy installation. Operating on a 120V primary voltage, it versatile multi-mount options including plate mount, foot mount, and knockout mount. This UL listed er ensures safety and quality, meeting industry standards for dependable use. Model Number: AT72D1683