Johnson Controls A19ABC-4 Temperature Control

Temperature, Mechanical, 24 to 277Vac, SPDT, Automatic Reset, 50 to 130 degree F Setpoint Range, 3.5 to 14 degree F Adjustable Differential, 8' Capillary Length with 3/8" x 5" Sensing Bulb, Remote Bulb Temperature Control with Knob Range Adjuster

Johnson Controls A19ABC-4 Temperature Control – Mechanical Remote Bulb Thermostat, SPDT, 50–130°F

The Johnson Controls A19ABC-4 is a high-performance mechanical temperature control featuring a remote bulb sensor, ideal for a wide range of HVACR and industrial applications. Designed with precision and durability in mind, this SPDT (Single-Pole, Double-Throw) control provides reliable temperature regulation with an adjustable setpoint range of 50°F to 130°F and a differential of 3.5°F to 14°F.

This model includes an automatic reset function, an 8-foot capillary tube, and a 3/8" x 5" sensing bulb, making it perfect for remote sensing situations where direct control access is not feasible. With a knob range adjuster and broad voltage compatibility (24 to 277 VAC), the A19ABC-4 is a flexible, cost-effective solution for commercial refrigeration units, heating equipment, or ventilation systems.

🔧 Key Features:

• ✅ Wide Voltage Range: Operates on 24 to 277 VAC

• 🌡️ Adjustable Temperature Range: 50°F to 130°F setpoint

• 🔁 SPDT with Automatic Reset: Ensures reliable switching and system protection

• 📏 Adjustable Differential: 3.5°F to 14°F for precise control

• 📦 Remote Sensing Bulb: 3/8" x 5" bulb with 8-foot capillary for flexible mounting

• 🧭 User-Friendly: Includes a knob for easy manual range adjustment

📐 Specifications:

• Brand: Johnson Controls

• Model: A19ABC-4

• Voltage: 24–277 VAC

• Control Type: Mechanical, SPDT

• Setpoint Range: 50°F to 130°F

• Differential: Adjustable from 3.5°F to 14°F

• Sensor: Remote bulb (3/8" x 5")

• Capillary Length: 8 feet

• Reset Type: Automatic

• Mounting: Remote

Ideal for HVAC, refrigeration, and industrial temperature regulation, the Johnson Controls A19ABC-4 provides dependable performance in demanding environments.