S1-3112-3571 Coleman 3-pole sequencer H1-110 C1-110,

Replaces 3400-357 & 3112-357. H1-110, C1-110. 3112-3571

OEM‑style 3‑pole, 2‑timing heat sequencer used in Coleman / York / Revolv electric furnaces and mobile home air handlers. Controls staged energizing and shutdown of multiple heat strips to prevent inrush load and ensure proper temperature rise.

🔧 Technical Specifications

• Poles / Switches: 3

• ON Timing (H1‑110): 1–110 seconds

• OFF Timing (C1‑110): 1–110 seconds

• Control Voltage: 24V (low‑voltage coil)

• Application: Multi‑stage electric heat kits

• Mounting: Standard 2‑hole bracket

• Electrical Rating: Designed for resistive heat strip sequencing

🔄 Function & Operation

• Activates heat strips in three stages to reduce electrical surge.

• Provides timed delay between blower operation and heat strip energizing.

• Ensures proper cool‑down cycle by delaying heat strip shutdown.

• Prevents nuisance trips and overheating caused by simultaneous element startup.

🧩 Replaces / Cross‑References

• 3400‑357

• 3112‑357

• S1‑3112‑3571 (York)

If you want, I can generate a full cross‑reference block with Supco, Mars, and DiversiTech equivalents.

📦 What’s Included

• 1 × 3‑pole sequencer

• Pre‑installed mounting bracket

⭐ Ideal Replacement For

• Electric furnaces with multiple heat strips

• Units experiencing delayed heat, no heat, or overheating due to failed sequencing

• Systems where heat strips energize all at once (high inrush load)