Allen-Bradley 815-D0V4 Thermal Overload Relay AC

Description:

The Allen-Bradley 815-D0V4 Overload Relay is a thermal overload relay designed to protect AC motors from sustained overload conditions by interrupting the control circuit when excessive motor current is detected. It operates on systems up to 600 VAC and uses replaceable heater elements to provide inverse time overload protection that allows normal motor starting currents while safeguarding against prolonged overloads. Commonly installed in NEMA motor starters, motor control centers (MCCs), pumps, conveyors, compressors, fans, and industrial machinery. Maintenance teams and system integrators use this relay for OEM replacement, motor starter repair, retrofit projects, and preventive maintenance of industrial motor control systems.

Applications:

The Allen-Bradley 815-D0V4 is used in industrial motor control circuits requiring dependable thermal overload protection. It is compatible with Bulletin 815 motor starters and utilizes interchangeable heater elements selected according to the motor full-load current and application requirements. Typical applications include manufacturing equipment, HVAC systems, pumping stations, material handling equipment, compressors, and other industrial installations where reliable motor protection is essential. Allen-Bradley Bulletin 815 overload relays are designed to provide Class 20 protection with appropriate heater elements for most general-purpose motor applications.

Technical Specifications:

• Manufacturer: Allen-Bradley (Rockwell Automation)
• Part Number: 815-D0V4
• Product Type: Thermal Overload Relay
• Bulletin: 815
• Relay Type: Eutectic Alloy Thermal Overload Relay
• Maximum Operating Voltage: 600 VAC
• Frequency: 50/60 Hz
• Protection Class: Class 20 (with standard heater elements)
• Heater Elements: Replaceable Type N or Type W (application dependent)
• Reset Type: Manual or Automatic (configuration dependent)
• Mounting Style: NEMA Starter Mounting
• Application: AC Motor Overload Protection
• Construction: Open-Type Industrial Overload Relay
• Features: Inverse time trip characteristics, replaceable heater elements, thermal overload protection, industrial-duty construction, and compatibility with Allen-Bradley Bulletin 815 motor starters.

Common Replacements:

• Allen-Bradley 815-B0V4
• Allen-Bradley 816-D0V4
• Allen-Bradley 592-D0V4