Description
Fujitsu 2-40-001421 LWCO Relay Overview
The Fujitsu 2-40-001421 is a Low Water Cut-Off (LWCO) Relay engineered to provide critical boiler safety protection. This relay monitors water levels within the boiler system and interrupts burner operation when water drops below a safe threshold, preventing costly dry-fire damage and extending equipment life.
Key Features
- Low Water Cut-Off (LWCO) relay function for boiler safety control
- Interrupts burner operation upon detection of low water conditions
- Designed to protect boiler heat exchangers from dry-fire damage
- OEM Fujitsu replacement part — ensures proper fit and reliable performance
- SKU: 2-40-001421 for accurate ordering and cross-referencing
Application
This LWCO relay is a direct OEM Fujitsu component intended for use in compatible boiler and hydronic heating systems. It serves as a primary safety device, automatically cutting off the burner circuit when water levels fall below the minimum safe operating level. Proper installation and regular inspection of LWCO controls are essential to safe boiler operation and compliance with industry safety standards.
Why Choose the Fujitsu 2-40-001421?
- Genuine OEM part for assured compatibility with Fujitsu equipment
- Protects boiler investment by preventing low-water damage
- Supports safe, code-compliant boiler system operation
- Reliable relay construction for long service life in demanding HVAC environments
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