---
product_id: 263719082
title: "Johnson Controls A19ABA-40CQ Line Volt Mechanical Thermostat, 120 to 277 VAC"
brand: "johnson controls"
price: "S$181"
currency: SGD
in_stock: true
category: "Johnson Controls"
url: https://www.desertcart.sg/products/263719082-johnson-controls-a19aba-40cq-line-volt-mechanical-thermostat-120-to
store_origin: SG
region: Singapore
---

# 120-277 VAC versatile power Mechanical dial control Durable wall-mount design Johnson Controls A19ABA-40CQ Line Volt Mechanical Thermostat, 120 to 277 VAC

**Brand:** johnson controls
**Price:** S$181
**Availability:** ✅ In Stock

## Summary

> 🎯 Dial into comfort with precision and power!

## Quick Answers

- **What is this?** Johnson Controls A19ABA-40CQ Line Volt Mechanical Thermostat, 120 to 277 VAC by johnson controls
- **How much does it cost?** S$181 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/263719082-johnson-controls-a19aba-40cq-line-volt-mechanical-thermostat-120-to)

## Best For

- johnson controls enthusiasts

## Why This Product

- Trusted johnson controls brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Wall-Mount Design:** Compact 2.5"x3"x2.5" rectangular form factor crafted for easy, secure mounting in any professional setting.
- • **Precision Mechanical Dial:** Intuitive manual control with a tactile dial for exact temperature adjustments without digital distractions.
- • **Trusted Brand Reliability:** Manufactured by Johnson Controls, a leader in HVAC solutions, ensuring quality and longevity.
- • **Streamlined Manual Operation:** No backlight or digital fuss—just straightforward, dependable temperature control for the discerning professional.
- • **Universal Voltage Compatibility:** Seamlessly operates between 120 to 277 volts AC for flexible installation across diverse HVAC systems.

## Overview

The A19ABA-40CQ is a Johnson Controls line voltage mechanical thermostat designed for HVAC systems operating between 120 and 277 VAC. Featuring a manual dial control and a compact, durable wall-mount design, this thermostat offers reliable, straightforward temperature management ideal for professional environments seeking dependable HVAC control without digital complexity.

## Description

The product is line Volt mechanical thermostat, 120 to 277VAC. The product is manufactured by Johnson Controls and made in Mexico.

## Features

- Package Dimensions: 10.5 L x 2.5 H x 3 W (inches)
- Package Weight : 1 pounds
- Country of Origin : Mexico
- Part number: A19ABA-40CQ

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00DAI2UES |
| Additional Features | Manual |
| Backlight | No |
| Best Sellers Rank | #193,924 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #118 in Thermostat Controllers |
| Brand | Johnson Controls |
| Brand Name | Johnson Controls |
| Color | Silver |
| Connectivity Protocol | Wired |
| Connectivity Technology | Wired |
| Control Method | Touch |
| Control Type | Dial Control |
| Controller Type | Mechanical knob |
| Customer Reviews | 3.9 out of 5 stars 9 Reviews |
| Display Type | manual |
| Finish Types | Brushed |
| Global Trade Identification Number | 10662011011047 |
| Included Components | Copper Wire |
| Item Dimensions D x W x H | 2.5"D x 3"W x 2.5"H |
| Manufacturer | Johnson Controls Inc |
| Manufacturer Part Number | A19ABA-40CQ |
| Material Type | Plastic |
| Model Name | A19ABA-40CQ |
| Model Number | A19ABA-40CQ |
| Mounting Type | Wall Mount |
| Power Source | Line Volt |
| Product Dimensions | 2.5"D x 3"W x 2.5"H |
| Product Style | A19ABA-40CQ |
| Shape | Rectangular |
| Special Feature | Manual |
| Specific Uses For Product | HVAC Control |
| Temperature Control Type | manual |
| UPC | 082035719874 |
| Unit Count | 1.0 Count |
| Voltage | 277 Volts |

## Product Details

- **Brand:** Johnson Controls
- **Controller Type:** Mechanical knob
- **Model Name:** A19ABA-40CQ
- **Product Dimensions:** 2.5"D x 3"W x 2.5"H
- **Special Feature:** Manual

## Images

![Johnson Controls A19ABA-40CQ Line Volt Mechanical Thermostat, 120 to 277 VAC - Image 1](https://m.media-amazon.com/images/I/61p-od-nQ0L.jpg)

## Questions & Answers

**Q: What is the temperature range of this device?**
A: Installed two of these and they both failed, look for another unit

## Frequently Bought Together

- Johnson Controls A19ABA-40CQ Line Volt Mechanical Thermostat, 120 to 277 VAC
- MEASUREMAN Vapor Capillary Flanged Panel Mount Refrigeration Thermometer, 2" Dial, 48" Capillary, -40-65 deg F/-40-20 deg C, Re-Calibration Available
- Emerson 1609-101 Refrigeration Temperature Control

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**Shop now:** [https://www.desertcart.sg/products/263719082-johnson-controls-a19aba-40cq-line-volt-mechanical-thermostat-120-to](https://www.desertcart.sg/products/263719082-johnson-controls-a19aba-40cq-line-volt-mechanical-thermostat-120-to)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-07-13*