Overview
The Allen-Bradley 700-HG42A1 is a general-purpose open-style power relay designed for reliable switching in industrial automation and control circuits. With a 40A contact rating at 120/240VAC and a 120VAC control coil, this DPDT relay provides robust performance in panel-mounted applications. The open construction allows for easy inspection and maintenance in the field.
Key Features
- 40A switching current at 120/240VAC; 5A at 480/600VAC
- DPDT (4-pole) contact configuration for flexible circuit control
- 120VAC 50/60Hz coil voltage with 2W coil power draw
- Panel-mount, non-latching operation for standard control circuits
- CE, CSA, KC, and UL certifications for global compliance
- 2.2kV isolation between coil and contacts
Technical Specifications
- Contact Rating: 40A @ 120/240VAC; 5A @ 480/600VAC
- Coil Voltage: 120V AC, 50/60Hz
- Contact Configuration: DPDT (Double Pole Double Throw)
- Coil Power: 2W
- Mounting Type: Panel mount
- Operation: Non-latching
- Dielectric Strength: 2.2kV isolation (coil to contact)
- Standards: CE, CSA, KC, UL
- Type: Open style
- Series: 700-HG
- Country of Origin: China
- Weight: 0.7 lb
Typical Applications
- Machine control circuits requiring DPDT switching
- Pump and motor starter interlocking
- Solenoid and contactor pilot circuits
- Alarm and status indication systems
- Industrial process control and automation
Compatibility & Replacements
The 700-HG42A1 is part of Allen-Bradley’s 700-HG relay series and is fully compatible with existing 700-HG control systems. For applications requiring additional features, Allen-Bradley offers variants such as the 700-HG42A1-5 (with auxiliary snap switch) and 700-HG42A1-5-6 (with magnetic blowout and snap switch). Always verify coil voltage and contact rating requirements before substitution. Authorized distributors include Rexel, RS, and other Rockwell Automation partners.
