Rectorseal 24ZC-2 Electric Heat Sequencer Spst

Product Description

The RECTORSEAL 24ZC-2 is a single-pole single-throw (SPST) electric heat sequencer designed to stage electric resistance heating elements in forced-air systems. Heat sequencers prevent simultaneous energizing of multiple heating strips, which controls inrush current and reduces demand spikes on the electrical supply. This part is installed by licensed HVAC technicians during routine service, system commissioning, or component replacement in electric furnaces and air handlers.

The 24ZC-2 is suited for residential and light-commercial electric forced-air heating applications. It is typically found in electric furnaces and electric air handlers where staged heating element activation is required for proper system operation and electrical load management. Install scenarios include new equipment builds and direct replacement of failed sequencers in existing units.

Key Features

• SPST configuration controls a single heating element circuit per sequencer
• Staged activation reduces electrical inrush current during heating cycles
• Direct OEM-style replacement form factor for electric furnace and air handler applications
• Compact design fits standard sequencer mounting locations in electric heating equipment

Compatibility

Designed as an OEM-style replacement sequencer for residential and light-commercial electric furnaces and air handlers requiring SPST heat sequencer control.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect and lock out all electrical power to the unit before removing or installing the sequencer. Verify the replacement sequencer matches the original SPST configuration before wiring. Work should comply with applicable NEC requirements for electric heating equipment.