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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 787R43, 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

Brand
JOHNSON CONTROLS
Item
Relay Expansion Module: 24V AC, 450, 12Y966/30KA32/30KA33
Category
Modular Components for Temperature Controls
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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
View Full Spec Sheet

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

Product Description

The JOHNSON CONTROLS Relay Expansion Module (SKU 787R43, 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.

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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