12VDC TDR Dinosaur Electronics 12 VOLT DC TIME DELAY RELAY

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The Dinosaur Electronics 12VDC TDR is a high‑reliability 12‑volt DC time delay relay designed for RV furnace applications. This micro‑controlled relay provides a consistent 4‑second delay and a 2‑minute cooldown cycle, ensuring proper blower operation and safe ignition sequencing in RV furnaces.

Built in the USA and fully potted for durability, this relay is engineered to withstand vibration, heat, and moisture—making it a trusted upgrade or replacement for OEM furnace relays.

Key Features

• 12 VDC operation

• Microcontrolled timing for accuracy

• 4‑second delay on activation

• 2‑minute cooldown cycle

• Fully potted for vibration and moisture resistance

• Compact size: 1.5″ × 1.5″

• Made in the USA

• 3‑Year Manufacturer Warranty

Applications

Ideal for RV furnace systems requiring a dependable time delay relay for blower control and ignition timing. Compatible with many RV furnace models using a 12‑volt TDR module.

This Dinosaur Electronics relay typically replaces older 12‑volt furnace time‑delay modules such as:

Common OEM / Legacy Part Numbers Replaced

• Atwood / Hydro Flame TDR modules

• Suburban furnace time delay relays

• Generic 12VDC furnace blower delay relays

• Older non‑microcontrolled TDR cubes

• Universal RV furnace 12V time delay modules

Typical Replacement For:

• Furnace blower delay relays with:

  • 4‑second delay on start

  • ~2‑minute cooldown cycle

  • 12‑volt DC operation

  • 2‑wire or 3‑wire TDR configurations

Notes for Technicians

• Dinosaur’s 12VDC TDR is a universal upgrade for most RV furnace systems using a standalone 12‑volt time delay relay.

• It replaces older mechanical or analog TDRs that commonly fail due to vibration or heat.

• Fully potted design makes it a long‑life replacement for OEM relays that were not sealed.