Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

JOHNSON CONTROLS Line Volt Mechanical Tstat: 30° to 50°F, Steel, Fixed, 2.5°F - Indoor Single-Stage Controls
JOHNSON CONTROLSIndoor Single-Stage Controls

JOHNSON CONTROLS Line Volt Mechanical Tstat: 30° to 50°F, Steel, Fixed, 2.5°F

The JOHNSON CONTROLS A19AAD-5C is an indoor single-stage line-voltage mechanical thermostat with a fixed 2.5°F differential and a temperature control range of 30° to 50°F. It features a SPST switch action (close on…

SKU 3G-OTH-68348

Also listed as: A19AAD5C · A19AAD 5C

Brand
JOHNSON CONTROLS
Item
Line Volt Mechanical Tstat: 30° to 50°F, Steel, Fixed, 2.5°F
Category
Indoor Single-Stage Controls
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

JOHNSON CONTROLS
Manufacturer Part Number
A19AAD-5C
Type
Steel, Fixed, 2.5°F
AC Volt
24 to 277V
Voltage
24 to 277V AC
Differential Type
Fixed
Enclosure Material
Steel
Switch Type/Action
SPST, Close on Rise
Temperature Differential
2.5°F
Temperature Control Range
30° to 50°F
Capillary Length/Bulb Diameter
6 ft Capillary, 2-5/8 in x 3/8 in Bulb

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The JOHNSON CONTROLS A19AAD-5C is an indoor single-stage line-voltage mechanical thermostat with a fixed 2.5°F differential and a temperature control range of 30° to 50°F. It features a SPST switch action (close on rise), operates on 24 to 277V AC, and includes a 6 ft capillary with a 2-5/8 in x 3/8 in bulb. The steel enclosure houses the fixed-differential control, making it suitable for basic temperature regulation in commercial or industrial environments.

Frequently Asked Questions

What is the JOHNSON CONTROLS A19AAD-5C thermostat used for?

The JOHNSON CONTROLS A19AAD-5C is an indoor single-stage line-voltage mechanical thermostat used for basic temperature regulation in commercial or industrial environments. It controls heating or cooling equipment by closing a SPST switch on temperature rise, with a fixed 2.5°F differential and a 30° to 50°F range.

What are the specifications of the JOHNSON CONTROLS A19AAD-5C?

The JOHNSON CONTROLS A19AAD-5C features a SPST switch action (close on rise), a temperature control range of 30° to 50°F, a fixed 2.5°F differential, and operates on 24 to 277V AC. It includes a 6 ft capillary with a 2-5/8 in x 3/8 in bulb and a steel enclosure.

Where to buy the JOHNSON CONTROLS A19AAD-5C worldwide?

You can source the JOHNSON CONTROLS A19AAD-5C through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply this thermostat to commercial and industrial clients globally.

How to install the JOHNSON CONTROLS A19AAD-5C thermostat?

Install the JOHNSON CONTROLS A19AAD-5C by mounting the steel enclosure in a dry indoor location, routing the 6 ft capillary to the sensing point, and connecting the SPST switch to the 24 to 277V AC load. Ensure the bulb is fully immersed in the controlled medium. Follow standard electrical safety practices and local 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 indoor single-stage controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
JOHNSON CONTROLS Line Volt Mechanical Tstat: -30° to 100°F, Steel, Fixed, 3°F, 120 to 277V AC Volt (MPN A19AGC-77C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: -30° to 100°F, Steel, Fixed, 3°F, 120 to 277V AC Volt (MPN A19AGC-77C)
JOHNSON CONTROLS Line Volt Mechanical Tstat: -30° to 100°F, Steel, Adj, 3° to 12°F (MPN A19ABA-40C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: -30° to 100°F, Steel, Adj, 3° to 12°F (MPN A19ABA-40C)
JOHNSON CONTROLS Line Volt Mechanical Tstat: -30° to 100°F, Steel, Adj, 3° to 12°F (MPN A19ABC-36C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: -30° to 100°F, Steel, Adj, 3° to 12°F (MPN A19ABC-36C)
JOHNSON CONTROLS Line Volt Mechanical Tstat: 100° to 240°F, Steel, Fixed, 6°F, 120 to 277V AC Volt (MPN A19AAC-9C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 100° to 240°F, Steel, Fixed, 6°F, 120 to 277V AC Volt (MPN A19AAC-9C)
JOHNSON CONTROLS Line Volt Mechanical Tstat: 200° to 550°F, Steel, Fixed, 10°F, 120 to 277V AC Volt (MPN A19AAB-10C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 200° to 550°F, Steel, Fixed, 10°F, 120 to 277V AC Volt (MPN A19AAB-10C)
JOHNSON CONTROLS Line Volt Mechanical Tstat: 40° to 90°F, Steel, Fixed, 1.5°F, 120 to 277V AC Volt (MPN A19AAF-21C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 40° to 90°F, Steel, Fixed, 1.5°F, 120 to 277V AC Volt (MPN A19AAF-21C)

More from JOHNSON CONTROLS

View all JOHNSON CONTROLS parts
JOHNSON CONTROLS Line Volt Mechanical Tstat: -30° to 100°F, Steel, Manual Reset, Manual Reset (MPN A19ACA-14C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: -30° to 100°F, Steel, Manual Reset, Manual Reset (MPN A19ACA-14C)
JOHNSON CONTROLS Line Volt Mechanical Tstat: Heat or Cool, Steel, -30° to 40°C, 1.8° to 7.2°C (MPN A19BBC-4C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: Heat or Cool, Steel, -30° to 40°C, 1.8° to 7.2°C (MPN A19BBC-4C)
JOHNSON CONTROLS Line Volt Mechanical Tstat: Heat Only, Steel, 30° to 110°F, 1.7°C, 24 to 600V AC (MPN A19BAC-3C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: Heat Only, Steel, 30° to 110°F, 1.7°C, 24 to 600V AC (MPN A19BAC-3C)
JOHNSON CONTROLS Line Volt Mechanical Tstat: 100° to 240°F, Steel, Manual Reset, Manual Reset (MPN A19ADB-38C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 100° to 240°F, Steel, Manual Reset, Manual Reset (MPN A19ADB-38C)
JOHNSON CONTROLS Line Volt Mechanical Tstat: -30° to 100°F, Steel, Adj, 3° to 12°F (MPN A19ABA-45C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: -30° to 100°F, Steel, Adj, 3° to 12°F (MPN A19ABA-45C)
JOHNSON CONTROLS Line Volt Mechanical Tstat: Heat Only, Steel, 30° to 110°F, 1.5°F, 24 to 277V AC (MPN A19BAF-1C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: Heat Only, Steel, 30° to 110°F, 1.5°F, 24 to 277V AC (MPN A19BAF-1C)
JOHNSON CONTROLS Line Volt Mechanical Tstat: 25° to 225°F, Steel, Fixed, 3.5°F, 24 to 277V AC Volt (MPN A19AAF-12C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 25° to 225°F, Steel, Fixed, 3.5°F, 24 to 277V AC Volt (MPN A19AAF-12C)
JOHNSON CONTROLS Line Volt Mechanical Tstat: 50° to 200°F, Steel, Adj, 6° to 24°F (MPN A19ABB-2C)
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 50° to 200°F, Steel, Adj, 6° to 24°F (MPN A19ABB-2C)