S1-2940-3551 24V 3Pole Plug In Heat Relay 93-232187-25022R S1‑2940‑3551 24V 3‑Pole Plug‑In Heat Relay The S1‑2940‑3551 is a 24‑volt, 3‑pole plug‑in heat relay used in York, Coleman, and Luxaire electric furnace and air‑handler applications. This relay provides reliable switching for multi‑stage heat strip circuits, blower activation, and auxiliary heat functions. Designed for fast replacement and secure socket‑mounting, the S1‑2940‑3551 restores proper heating performance when older relays stick, chatter, or fail to energize under load. It directly replaces the legacy 93‑232187‑25022R relay used across multiple OEM electric heat kits. Technical Specifications Voltage: 24 VAC coil Poles: 3‑pole Mounting: Plug‑in relay base Application: Electric furnace heat strips, blower circuits, auxiliary heat OEM Use: York / Coleman / Luxaire electric heat kits Action: SPST/3‑pole switching for multi‑stage heat Cross‑Reference Block (Copy/Paste) Cross Reference: S1‑2940‑3551 (current OEM) 93‑232187‑25022R (legacy replacement) York / Source 1 heat relay Coleman / Luxaire electric heat relay 24V 3‑pole plug‑in relay