Supco TD69 Time Delay on Make Relay Adjustable 24V

Product Description

The Supco TD69 is an adjustable time delay on make relay designed for use in HVAC control circuits. It introduces a timed delay before completing a circuit, preventing simultaneous component startups that can cause nuisance trips or equipment stress. The TD69 handles 1.0 amp steady-state current with a 10 amp inrush rating and operates on 24-volt pilot circuits. The delay period is field-adjustable from 6 seconds to 8 minutes, giving technicians precise control over sequencing. Licensed HVAC technicians and controls specialists are the typical installers for this type of device.

The TD69 is suited for residential and light commercial HVAC applications where staged startup sequencing is required. It can be used on 24-volt control circuits with or without a cooling anticipator, making it adaptable to a range of thermostat and air handler configurations. Its compact form factor and single-hole mounting simplify installation in tight electrical panels and air handler control boxes. The non-positional design means orientation during mounting is not restricted.

Key Features

• Adjustable delay on make from 6 seconds to 8 minutes for flexible sequencing control
• Rated 1.0 amp steady-state with 10 amp inrush capacity
• Compatible with 24-volt pilot circuits, with or without a cooling anticipator
• Single-hole mounting for fast, straightforward installation
• Non-positional design allows any mounting orientation
• Compact metal construction at 3.50 inches x 1.50 inches x 5.51 inches

Compatibility

Designed as an OEM-style replacement time delay relay for residential and light commercial HVAC control circuits operating on 24-volt pilot systems.

Installation Notes

Installation should be performed by a licensed HVAC technician. De-energize the control circuit and confirm power is off at the disconnect before handling any low-voltage wiring connections. Single-hole panel mounting requires only basic hand tools. Follow local electrical codes and manufacturer wiring diagrams when integrating into existing thermostat or air handler control boards.