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JOHNSON CONTROLS P74EA-8C Differential Pressure Control - Differential Controls
JOHNSON CONTROLSDifferential Controls

JOHNSON CONTROLS P74EA-8C Differential Pressure Control

The JOHNSON CONTROLS P74EA-8C is a Differential Pressure Control (SPDT) with automatic reset, rated at 240V. It features an Open/Close on Rise and Fall switch action, operating at 3.5 psi. This differential control…

SKU 3G-OTH-66775

Also listed as: P74EA8C · P74EA 8C

Brand
JOHNSON CONTROLS
Item
P74EA-8C Differential Pressure Control
Category
Differential Controls
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Technical Specifications

JOHNSON CONTROLS
Manufacturer Part Number
P74EA-8C
Type
Open/Close on Rise and Fall, 208V/240V, Auto Reset, 3.5 psi
Reset Type
Automatic
Rated Voltage
240V
Switch Action
Open/Close on Rise and Fall

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JOHNSON CONTROLS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The JOHNSON CONTROLS P74EA-8C is a Differential Pressure Control (SPDT) with automatic reset, rated at 240V. It features an Open/Close on Rise and Fall switch action, operating at 3.5 psi. This differential control is designed for monitoring and switching based on pressure differential changes.

Frequently Asked Questions

What is the JOHNSON CONTROLS P74EA-8C differential pressure control used for?

The JOHNSON CONTROLS P74EA-8C is used to monitor and switch electrical circuits based on pressure differential changes in HVAC, refrigeration, and industrial fluid systems. It opens or closes contacts on both rise and fall of differential pressure, providing automatic reset at the setpoint.

What are the specifications of the JOHNSON CONTROLS P74EA-8C?

The P74EA-8C is a SPDT differential pressure control with automatic reset, rated voltage of 240V, and a switch action that opens and closes on both rise and fall of differential pressure. It operates at 3.5 psi and is manufactured by JOHNSON CONTROLS.

Where to buy the JOHNSON CONTROLS P74EA-8C worldwide?

3G Electric supplies the JOHNSON CONTROLS P74EA-8C differential pressure control worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the JOHNSON CONTROLS P74EA-8C differential pressure control?

Install the P74EA-8C in a dry location, connecting pressure lines to the high and low ports per the manufacturer's diagram. Wire the SPDT contacts for your 240V circuit, ensuring the switch action (open/close on rise and fall) matches your application. Always follow local electrical codes.

Used in

Common applications for JOHNSON CONTROLS
Industrial refrigeration — Johnson Controls P170SA-1C dual pressure control for compressor protection in ammonia or halocarbon systems
Chiller plant automation — Johnson Controls VA7810-HGA-2 electric globe valve actuator for modulating chilled water flow in VG7000 series valves
Pneumatic HVAC retrofit — Johnson Controls T-4002-302 conversion kit for upgrading existing Robertshaw thermostats in commercial buildings
Cooling tower water management — Johnson Controls V-4332-1007 pneumatically actuated diaphragm valve for 3-way diverting of water flow
Boiler fuel oil pressure monitoring — Johnson Controls P545NCB-25C electronic lube oil pressure control with alarm for burner management systems
Process pressure sensing — Johnson Controls P599AAPS105C pressure transmitter with IP67 rating for washdown zones in food and beverage plants

JOHNSON CONTROLS Products

3G Electric supplies JOHNSON CONTROLS differential controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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