Hover over image to zoom in


Availability: Obsolete
OBSOLETE Auxiliary Box for OptoEMU Sensor with Stepdown Power Transformer & Fusible Disconnect

Production Specification

*** This product is obsolete and no longer available. ***
The OPTOEMU-PT600 auxiliary box is an optional accessory for the OptoEMU Sensor energy monitoring appliance.

In most installations, power for the OptoEMU Sensor is provided through a standard 120 or 240 wall outlet. However, if power is provided through another source, for example a monitored electrical panel, you will need the OPTOEMU-PT600 auxiliary box.

The box contains a transformer that takes input voltages between 220 and 600 VAC and transforms them to the 100-250 volts required by the OptoEMU Sensor. The box also contains a fusible disconnect for safety.

Note: This box is not intended for CAT3 installations.

Input voltage range

220–600 VAC line-to-line

Output voltage

110–240 VAC (power for OptoEMU-SNR-3V)


1 amp, class CC, 600 VAC (Edison part number HCLR1)


6.0" w x 13.5" h x 4.5" d


Sturdy metal enclosure with standard knockouts for wiring

Agency Approvals



30 months

* NOTE: Not intended for CAT3 installations.

OptoEMU Sensor 3V Data Sheet

The OptoEMU Sensor™ Energy Monitoring Unit monitors the electrical energy used in your facility and then delivers that data to online software applications, using your existing wired or wireless Ethernet network.

Energy data can also be incorporated into a control system, including the SNAP PAC System and systems communicating via Modbus/TCP or OPC. In addition, data can be sent to common SQL databases.

The OptoEMU Sensor gives you the detailed, real-time data you need to analyze energy consumption, manage use, and reduce energy costs.

OptoEMU Sensor User's Guide

The OptoEMU Sensor monitors energy usage in your facility so you can track energy data and reduce costs. This document describes how to install and use the OptoEMU Sensor and the optional auxiliary box.

Opto 22 RoHS 3 Statement of Compliance - Restriction of Hazardous Substances

This document is a statement of compliance with the EU Directive 2015/863/EU, Restriction of Hazardous Substances (RoHS 3). This document lists Opto 22 products that comply with the substance restrictions of the RoHS 3 directive.

No downloads are available for this product.
No videos or demos are available for this product.