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JOHNSON CONTROLS Relay Expansion Module: 24V AC, 450, 12Y966/30KA32/30KA33 - Modular Components for Temperature Controls
JOHNSON CONTROLSModular Components for Temperature Controls

JOHNSON CONTROLS Relay Expansion Module: 24V AC, 450, 12Y966/30KA32/30KA33

The JOHNSON CONTROLS Relay Expansion Module (SKU C450SCN-4C, MPN C450SCN-4C) is a modular component for temperature controls, specifically an expansion module with relay output for humidity sensing and control…

SKU 3G-OTH-68613

Also listed as: C450SCN4C · C450SCN 4C

Brand
JOHNSON CONTROLS
Item
Relay Expansion Module: 24V AC, 450, 12Y966/30KA32/30KA33
Category
Modular Components for Temperature Controls
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

JOHNSON CONTROLS
Manufacturer Part Number
C450SCN-4C
Type
450, 12Y966/30KA32/30KA33, C450CEN-1C/C450CRN-1C/C450RCN-3C
Application
Humidity Sensing and Control
Product Type
Expansion Modules with Relay Output
Input Voltage
24V AC
Compatible with Series
450
Compatible with Manufacturer Model Number
C450CEN-1C

Technical Documents

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

Product Description

The JOHNSON CONTROLS Relay Expansion Module (SKU C450SCN-4C, MPN C450SCN-4C) is a modular component for temperature controls, specifically an expansion module with relay output for humidity sensing and control applications. It operates on 24V AC input voltage and is compatible with the 450 Series, including model C450CEN-1C.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the Johnson Controls C450SCN-4C relay expansion module used for?

The Johnson Controls C450SCN-4C relay expansion module is used for humidity sensing and control applications. It expands the relay output capacity of compatible 450 Series controllers, such as the C450CEN-1C, enabling precise environmental monitoring and regulation in HVAC and building management systems.

What are the specifications of the Johnson Controls C450SCN-4C?

The Johnson Controls C450SCN-4C is an expansion module with relay output, operating on 24V AC input voltage. It is compatible with the 450 Series, including model C450CEN-1C. The module is designed for humidity sensing and control applications, with manufacturer part number C450SCN-4C.

Where to buy the Johnson Controls C450SCN-4C relay expansion module worldwide?

3G Electric supplies the Johnson Controls C450SCN-4C relay expansion module worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this modular component for temperature controls.

How to install the Johnson Controls C450SCN-4C relay expansion module?

Install the Johnson Controls C450SCN-4C relay expansion module by mounting it securely and connecting the 24V AC input power. Follow the manufacturer's wiring diagram for relay output connections. Ensure compatibility with the 450 Series controller, such as the C450CEN-1C, and verify proper humidity sensor integration before commissioning.

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 modular components for temperature controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Humidity Controller: DIN Rail/Wall Mount, 120/240V AC, Dehumidifier Control Compatible, 120/240V AC (MPN S351AA-1C)
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Humidity Controller: DIN Rail/Wall Mount, 120/240V AC, Dehumidifier Control Compatible, 120/240V AC (MPN S351AA-1C)
Temperature Control: Single Stages, Heat and Cool, -40°F to 150°F, Digital, 24V AC (MPN C550AQN-001C)
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Temperature Control: Three Stages, Heat and Cool, -40°F to 150°F, Digital, SPDT, 24V AC/DC (MPN C550ACN-001C)
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Control Module: Universal, Integrated, Compatible Brand Johnson Controls, System 450, 24V AC (MPN C450CPW-400)
JOHNSON CONTROLS Current Sensor Relay: Surface Mounted, 100 A Current Rating, 12V AC, Pin (MPN CSDSC-C50100L3)
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JOHNSON CONTROLS Current Sensor Relay: Surface Mounted, 100 A Current Rating, 12V AC, Pin (MPN CSDSC-C50100L3)

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