Rectorseal M19009 Mars 70 Relay

Product Description

The RECTORSEAL M19009 is the Mars 70 relay, an electromechanical switching device used in HVAC and plumbing control systems to switch loads based on low-voltage control signals. Relays of this type allow a low-current control circuit to open and close a higher-current load circuit, making them a common component in heating, cooling, and fluid-handling system controls. Licensed HVAC technicians and plumbing professionals install this relay as part of system control wiring or as a direct replacement for a failed unit in an existing installation.

The Mars 70 relay is suited for residential and light commercial HVAC and plumbing control applications where a reliable electromechanical relay is required. It is typically installed in control panels, air handlers, boilers, and similar equipment where switching of load circuits is managed by a low-voltage thermostat or controller signal. Installers working on forced-air, hydronic, or zone-control systems will find this relay applicable to standard control wiring configurations.

Key Features

• Electromechanical relay design for switching load circuits via low-voltage control signal
• Mars 70 series construction suited for HVAC and plumbing control panel use
• Direct replacement form factor for service and retrofit applications
• Compact build appropriate for installation in tight control enclosures

Compatibility

Designed as an OEM-style replacement relay for residential and light commercial HVAC and plumbing control systems where a Mars 70 series relay is specified.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified plumbing professional. Always disconnect and lock out power to the control panel or equipment before removing or installing the relay. Follow applicable NEC requirements for control wiring and load circuit connections. Verify coil voltage and contact ratings match the system specifications before energizing.

Technical Specifications

• UPC: 685744190097

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: M19009