Rectorseal m33246 Thermal Time Delay Relay Hvac

Product Description

The RECTORSEAL m33246 is a thermal time delay relay designed for heating and air conditioning control circuits. It operates using a solid state PTC (positive temperature coefficient) device that heats up as current passes through it from the control circuit. That heat causes a snap-acting disc to make or break the necessary contacts, creating a reliable, repeatable time delay without mechanical timers or moving parts. At 0.15 pounds and compact dimensions, this relay fits into tight control panels and equipment enclosures. HVAC technicians install it where sequenced or delayed switching is required in heating and cooling systems.

This relay is suited for residential and light commercial HVAC applications where time delay switching is needed in control circuits. Common install scenarios include electric heat sequencing, compressor delay on restart, and fan delay circuits. The PTC-based solid state design requires no adjustment and provides consistent delay characteristics across standard HVAC control voltage applications. It is sold as a single unit and is appropriate for use by licensed HVAC technicians performing control circuit work.

Key Features

• Solid state PTC device provides reliable thermal time delay without mechanical timers
• Snap-acting disc contact action ensures positive make or break switching
• Compact form factor at 2.8 x 1.7 x 3.6 inches fits standard control enclosures
• Lightweight at 0.15 pounds for easy handling and installation
• Suitable for a variety of heating and air conditioning control circuit applications

Compatibility

Designed as an OEM-style replacement thermal time delay relay for residential and light commercial HVAC control circuit applications.

Installation Notes

Installation should be performed by a licensed HVAC technician. De-energize the control circuit and disconnect power to the equipment before servicing any relay or control component. Follow applicable NEC guidelines for low-voltage control wiring. Verify that the replacement relay matches the electrical requirements of the existing control circuit before restoring power.

Technical Specifications

• Item Width: 2.8 inches
• Item Height: 1.7 inches
• Item Depth: 3.6 inches
• Item Weight: 0.15 pounds
• Actuator Type: Solid State PTC (Positive Temperature Coefficient)
• Contact Action: Snap-acting disc
• Unit of Measure: Each

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: m33246