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

3G Electric
RFQ CartGet a QuoteSign inSign up
JOHNSON CONTROLS Line Volt Mechanical Tstat: 15° to 55°F, Steel, Fixed, 5°F - Two-Circuit Indoor Single-Stage Controls
JOHNSON CONTROLSTwo-Circuit Indoor Single-Stage Controls

JOHNSON CONTROLS Line Volt Mechanical Tstat: 15° to 55°F, Steel, Fixed, 5°F

The JOHNSON CONTROLS A70BA-18C is a two-circuit indoor single-stage control with a fixed 5°F differential and a temperature control range of 15° to 55°F. It features a SPST switch action (close on rise), operates on…

SKU 3G-OTH-67710

Brand
JOHNSON CONTROLS
Item
Line Volt Mechanical Tstat: 15° to 55°F, Steel, Fixed, 5°F
Category
Two-Circuit Indoor Single-Stage Controls
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
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

Technical Specifications

JOHNSON CONTROLS
Manufacturer Part Number
A70BA-18C
Type
Steel, Fixed, 5°F
AC Volt
120 to 600V
Voltage
120 to 600V AC
Differential Type
Fixed
Enclosure Material
Steel
Switch Type/Action
SPST, Close on Rise
Temperature Differential
5°F
Temperature Control Range
15° to 55°F
Capillary Length/Bulb Diameter
20 ft Capillary, 20 ft x 1/8 in Bulb
View Full Spec Sheet

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 A70BA-18C is a two-circuit indoor single-stage control with a fixed 5°F differential and a temperature control range of 15° to 55°F. It features a SPST switch action (close on rise), operates on 120 to 600V AC, and includes a 20 ft capillary with a 20 ft x 1/8 in bulb. The steel enclosure houses this line volt mechanical thermostat, designed for straightforward temperature regulation.

Frequently Asked Questions

What is the JOHNSON CONTROLS A70BA-18C line volt mechanical thermostat used for?

The JOHNSON CONTROLS A70BA-18C is used for temperature regulation in commercial or industrial HVAC systems. It controls single-stage heating or cooling circuits with a SPST switch that closes on temperature rise, making it suitable for applications requiring a fixed 5°F differential within a 15° to 55°F range.

What are the specifications of the JOHNSON CONTROLS A70BA-18C thermostat?

The JOHNSON CONTROLS A70BA-18C has a temperature control range of 15° to 55°F, a fixed 5°F differential, and operates on 120 to 600V AC. It features a SPST switch action (close on rise), a 20 ft capillary with a 20 ft x 1/8 in bulb, and a steel enclosure.

Where to buy the JOHNSON CONTROLS A70BA-18C thermostat worldwide?

You can source the JOHNSON CONTROLS A70BA-18C thermostat worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the JOHNSON CONTROLS A70BA-18C line volt thermostat?

Install the JOHNSON CONTROLS A70BA-18C by mounting the steel enclosure securely, routing the 20 ft capillary and bulb to the sensing area, and wiring the SPST switch per the voltage rating (120 to 600V AC). Ensure the bulb is fully immersed in the controlled medium for accurate temperature sensing.

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 two-circuit 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 →

Similar products

Matched by specification & description
JOHNSON CONTROLS Line Volt Mechanical Tstat: 30° to 50°F, Steel, Fixed, 2.5°F, 24 to 277V AC Volt (MPN A19AAD-5C). Key specifications — Switch Type/Action: SPST, Close on Rise; Temperature Control Range: 30° to 50°F; Temperature Differential: 2.5°F; Voltage: 24 to 277V AC; Capillary Length/Bulb Diameter: 6 ft Capillary, 2-5/8 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Fixed; Enclosure Material: Steel.
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 30° to 50°F, Steel, Fixed, 2.5°F, 24 to 277V AC Volt (MPN A19AAD-5C). Key specifications — Switch Type/Action: SPST, Close on Rise; Temperature Control Range: 30° to 50°F; Temperature Differential: 2.5°F; Voltage: 24 to 277V AC; Capillary Length/Bulb Diameter: 6 ft Capillary, 2-5/8 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Fixed; Enclosure Material: Steel.
JOHNSON CONTROLS Line Volt Mechanical Tstat: 50° to 200°F, Steel, Adj, 6° to 24°F (MPN A19ABB-2C). Key specifications — Switch Type/Action: SPST, Open on Rise; Temperature Control Range: 50° to 200°F; Temperature Differential: 6° to 24°F; Voltage: 120 to 277V AC; Capillary Length/Bulb Diameter: 10 ft Capillary, 2-1/2 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Adjustable; Enclosure Material: Steel.
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 50° to 200°F, Steel, Adj, 6° to 24°F (MPN A19ABB-2C). Key specifications — Switch Type/Action: SPST, Open on Rise; Temperature Control Range: 50° to 200°F; Temperature Differential: 6° to 24°F; Voltage: 120 to 277V AC; Capillary Length/Bulb Diameter: 10 ft Capillary, 2-1/2 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Adjustable; Enclosure Material: Steel.
JOHNSON CONTROLS Line Volt Mechanical Tstat: 200° to 550°F, Steel, Fixed, 10°F, 120 to 277V AC Volt (MPN A19AAB-10C). Key specifications — Switch Type/Action: SPST, Open on Rise; Temperature Control Range: 200° to 550°F; Temperature Differential: 10°F; Voltage: 120 to 277V AC; Capillary Length/Bulb Diameter: 8 ft Capillary, 6 in x 3/16 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Fixed; Enclosure Material: Steel.
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 200° to 550°F, Steel, Fixed, 10°F, 120 to 277V AC Volt (MPN A19AAB-10C). Key specifications — Switch Type/Action: SPST, Open on Rise; Temperature Control Range: 200° to 550°F; Temperature Differential: 10°F; Voltage: 120 to 277V AC; Capillary Length/Bulb Diameter: 8 ft Capillary, 6 in x 3/16 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Fixed; Enclosure Material: Steel.
JOHNSON CONTROLS Line Volt Mechanical Tstat: 25° to 225°F, Steel, Fixed, 3.5°F, 24 to 277V AC Volt (MPN A19AAF-12C). Key specifications — Switch Type/Action: SPDT, Open/Close on Rise; Temperature Control Range: 25° to 225°F; Temperature Differential: 3.5°F; Voltage: 24 to 277V AC; Capillary Length/Bulb Diameter: 10 ft Capillary, 3 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Fixed; Enclosure Material: Steel.
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). Key specifications — Switch Type/Action: SPDT, Open/Close on Rise; Temperature Control Range: 25° to 225°F; Temperature Differential: 3.5°F; Voltage: 24 to 277V AC; Capillary Length/Bulb Diameter: 10 ft Capillary, 3 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Fixed; Enclosure Material: Steel.
JOHNSON CONTROLS Line Volt Mechanical Tstat: 40° to 90°F, Steel, Adj, 3.5°/2° to 7°F (MPN A28AA-36C). Key specifications — Switch Type/Action: SPDT, Open/Close on Rise; Temperature Control Range: 40° to 90°F; Temperature Differential: 3.5°/2° to 7°F; Voltage: 24 to 277V AC; Capillary Length/Bulb Diameter: 6 ft Capillary, 6 ft x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Adjustable; Enclosure Material: Steel.
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 40° to 90°F, Steel, Adj, 3.5°/2° to 7°F (MPN A28AA-36C). Key specifications — Switch Type/Action: SPDT, Open/Close on Rise; Temperature Control Range: 40° to 90°F; Temperature Differential: 3.5°/2° to 7°F; Voltage: 24 to 277V AC; Capillary Length/Bulb Diameter: 6 ft Capillary, 6 ft x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Adjustable; Enclosure Material: Steel.
JOHNSON CONTROLS Line Volt Mechanical Tstat: 100° to 240°F, Steel, Fixed, 6°F, 120 to 277V AC Volt (MPN A19AAC-9C). Key specifications — Switch Type/Action: SPDT, Open/Close on Rise; Temperature Control Range: 100° to 240°F; Temperature Differential: 6°F; Voltage: 120 to 277V AC; Capillary Length/Bulb Diameter: 6 ft Capillary, 3-1/2 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Fixed; Enclosure Material: Steel.
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 100° to 240°F, Steel, Fixed, 6°F, 120 to 277V AC Volt (MPN A19AAC-9C). Key specifications — Switch Type/Action: SPDT, Open/Close on Rise; Temperature Control Range: 100° to 240°F; Temperature Differential: 6°F; Voltage: 120 to 277V AC; Capillary Length/Bulb Diameter: 6 ft Capillary, 3-1/2 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Fixed; Enclosure Material: Steel.

More from JOHNSON CONTROLS

View all JOHNSON CONTROLS parts →
JOHNSON CONTROLS Line Volt Mechanical Tstat: 15° to 55°F, Steel, Manual Reset, 5°F (MPN A70HA-1C). Key specifications — Switch Type/Action: SPST, Open/Close on Rise; Temperature Control Range: 15° to 55°F; Temperature Differential: 5°F; Voltage: 120 to 600V AC; Capillary Length/Bulb Diameter: 20 ft Capillary, 20 ft x 1/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Manual Reset; Enclosure Material: Steel.
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 15° to 55°F, Steel, Manual Reset, 5°F (MPN A70HA-1C). Key specifications — Switch Type/Action: SPST, Open/Close on Rise; Temperature Control Range: 15° to 55°F; Temperature Differential: 5°F; Voltage: 120 to 600V AC; Capillary Length/Bulb Diameter: 20 ft Capillary, 20 ft x 1/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Manual Reset; Enclosure Material: Steel.
JOHNSON CONTROLS Line Volt Mechanical Tstat: 15° to 55°F, Steel, Fixed, 5°F, 120 to 600V AC Volt (MPN A70GA-1C). Key specifications — Switch Type/Action: SPST, Open/Close on Rise; Temperature Control Range: 15° to 55°F; Temperature Differential: 5°F; Voltage: 120 to 600V AC; Capillary Length/Bulb Diameter: 20 ft Capillary, 20 ft x 1/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Fixed; Enclosure Material: Steel.
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 15° to 55°F, Steel, Fixed, 5°F, 120 to 600V AC Volt (MPN A70GA-1C). Key specifications — Switch Type/Action: SPST, Open/Close on Rise; Temperature Control Range: 15° to 55°F; Temperature Differential: 5°F; Voltage: 120 to 600V AC; Capillary Length/Bulb Diameter: 20 ft Capillary, 20 ft x 1/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Fixed; Enclosure Material: Steel.
JOHNSON CONTROLS Line Volt Mechanical Tstat: 35° to 80°F, Steel, Manual Reset, 6°F (MPN A70HA-2C). Key specifications — Switch Type/Action: SPST, Open/Close on Rise; Temperature Control Range: 35° to 80°F; Temperature Differential: 6°F; Voltage: 120 to 600V AC; Capillary Length/Bulb Diameter: 6 ft Capillary, 3 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Manual Reset; Enclosure Material: Steel.
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 35° to 80°F, Steel, Manual Reset, 6°F (MPN A70HA-2C). Key specifications — Switch Type/Action: SPST, Open/Close on Rise; Temperature Control Range: 35° to 80°F; Temperature Differential: 6°F; Voltage: 120 to 600V AC; Capillary Length/Bulb Diameter: 6 ft Capillary, 3 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Manual Reset; Enclosure Material: Steel.
JOHNSON CONTROLS Line Volt Mechanical Tstat: 15° to 55°F, Steel, Manual Reset, 2°F (MPN A70HA-14C). Key specifications — Switch Type/Action: SPST, Open/Close on Rise; Temperature Control Range: 15° to 55°F; Temperature Differential: 2°F; Voltage: 120 to 600V AC; Capillary Length/Bulb Diameter: 20 ft Capillary, 20 ft x 1/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Manual Reset; Enclosure Material: Steel.
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 15° to 55°F, Steel, Manual Reset, 2°F (MPN A70HA-14C). Key specifications — Switch Type/Action: SPST, Open/Close on Rise; Temperature Control Range: 15° to 55°F; Temperature Differential: 2°F; Voltage: 120 to 600V AC; Capillary Length/Bulb Diameter: 20 ft Capillary, 20 ft x 1/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Manual Reset; Enclosure Material: Steel.
JOHNSON CONTROLS Line Volt Mechanical Tstat: 35° to 80°F, Steel, Adj, 3° to 30°F (MPN A70GA-2C). Key specifications — Switch Type/Action: SPST, Open/Close on Rise; Temperature Control Range: 35° to 80°F; Temperature Differential: 3° to 30°F; Voltage: 120 to 600V AC; Capillary Length/Bulb Diameter: 6 ft Capillary, 3 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Adjustable; Enclosure Material: Steel.
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 35° to 80°F, Steel, Adj, 3° to 30°F (MPN A70GA-2C). Key specifications — Switch Type/Action: SPST, Open/Close on Rise; Temperature Control Range: 35° to 80°F; Temperature Differential: 3° to 30°F; Voltage: 120 to 600V AC; Capillary Length/Bulb Diameter: 6 ft Capillary, 3 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Adjustable; Enclosure Material: Steel.
JOHNSON CONTROLS Line Volt Mechanical Tstat: 100° to 170°F, Steel, Manual Reset, 8°F (MPN A70KA-1C). Key specifications — Switch Type/Action: SPST, Open/Close on Rise; Temperature Control Range: 100° to 170°F; Temperature Differential: 8°F; Voltage: 120 to 600V AC; Capillary Length/Bulb Diameter: 6 ft Capillary, 10 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Manual Reset; Enclosure Material: Steel.
JOHNSON CONTROLS
JOHNSON CONTROLS Line Volt Mechanical Tstat: 100° to 170°F, Steel, Manual Reset, 8°F (MPN A70KA-1C). Key specifications — Switch Type/Action: SPST, Open/Close on Rise; Temperature Control Range: 100° to 170°F; Temperature Differential: 8°F; Voltage: 120 to 600V AC; Capillary Length/Bulb Diameter: 6 ft Capillary, 10 in x 3/8 in Bulb; Brand: JOHNSON CONTROLS; Differential Type: Manual Reset; Enclosure Material: Steel.