Allied Innovations Pressure Switch 800220-3 / 800120-3 (4015P)

The Allied Innovations pressure switch is a universal SPDT control device designed for pool and spa systems. Introduced in 1993 for the pool and spa industry, it serves as a reliable replacement option that stabilizes relay operation and simplifies wiring.

• Model and compatibility: 800220-3 / 800120-3, replacement for Series 4000 pressure switches (TEC3015 4015P)
• Electrical rating: 25A at 24–240 VAC
• Switch type: SPDT (Single Pole Double Throw) for flexible control wiring
• Pressure range: 1–11 psi switching range
• Differential: 2.5 psi differential to minimize relay chatter and cycling
• Plumbing connection: 1/8" NPT connection (Male threads)
• Pan/housing: Plastic pan housing for lightweight, economical mounting
• Wiring: Two quick-connect spade terminals for quick installation

Benefits: This pressure switch delivers reliable, low-noise performance in pool and spa setups by providing a precise activation point with a meaningful differential that reduces relay chatter. The 25A rating supports common pool equipment like pumps and heaters, while the 1/8" NPT male threading ensures compatibility with standard plumbing fittings. As a well-established replacement part with a history dating back to its 1993 introduction, it offers straightforward installation, durable construction, and dependable operation in demanding water environments.

800120-3 Replacement
Replacement for the Series 4000 Pressure Switch - 800220-3

• SPDT
• TEC3015
• 4015P
• 25A
• 1/8" NPT

Universal Pressure Switch
Introduced in 1993 specifically for the pool and spa industry, this pressure switch is designed with a 2-1/2 lb differential to completely eliminate oscillating or chattering relays. This uses a plastic pan material. 

 
Electrical rating 1-25 amps at 24-240 VAC