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Dwyer 4B-33 1/4 DIN Digital PID Temperature Controller - Temperature Controllers
DwyerTemperature Controllers

Dwyer 4B-33 1/4 DIN Digital PID Temperature Controller

The Dwyer 4B Temperature Controller (MPN 4B-33) is a 1/4 DIN digital PID controller with a thermocouple sensor input and two relay outputs rated at 5 A. It operates on 100 to 240V AC input voltage and features a…

SKU 3G-OTH-361478

Also listed as: 4B33 · 4B 33

Brand
Dwyer
Item
4B-33 1/4 DIN Digital PID Temperature Controller
Part Number
4B-33
Category
Temperature Controllers
Available to Order
Also known as:4B-33Dwyer
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Technical specs
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Dwyer
Manufacturer Part Number
4B-33
Series
4B
Type
RTD/Thermocouple, Manual/On/Off Action/PID, Digital
Output
(2) Relay
Current
5 A
DIN Size
1/4
Sensor Type
Thermocouple
Control Mode
PID
Display Type
Digital
Product Type
Temperature Controller
Input Voltage
100 to 240V AC

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

Product Description

The Dwyer 4B Temperature Controller (MPN 4B-33) is a 1/4 DIN digital PID controller with a thermocouple sensor input and two relay outputs rated at 5 A. It operates on 100 to 240V AC input voltage and features a digital display.

Frequently Asked Questions

What is the Dwyer 4B-33 temperature controller used for?

The Dwyer 4B-33 is a 1/4 DIN digital PID controller used to regulate process temperatures in industrial heating, HVAC, and combustion systems. It accepts thermocouple or RTD sensor inputs and provides two relay outputs for on/off or proportional control.

What are the specifications of the Dwyer 4B-33 temperature controller?

The Dwyer 4B-33 is a 1/4 DIN digital PID controller with thermocouple/RTD input, two relay outputs rated at 5 A, and an input voltage of 100 to 240V AC. It offers manual, on/off, and PID control modes with a digital display.

Where to buy the Dwyer 4B-33 temperature controller worldwide?

3G Electric supplies the Dwyer 4B-33 temperature controller to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this Dwyer PID controller.

How to select a PID temperature controller like the Dwyer 4B-33?

When selecting a PID controller like the Dwyer 4B-33, match the sensor type (thermocouple or RTD), input voltage (100 to 240V AC), output relay rating (5 A), and DIN size (1/4) to your process requirements. Verify control mode compatibility with your heating or cooling application.

Used in

Common applications for Dwyer
Combustion air-filter monitoring — Magnehelic Series 2000 on burner air-intake filter banks
Clean-room and pharmaceutical pressurisation — Magnehelic / Capsuhelic differential-pressure gauges
HVAC fan-discharge static pressure — Mark II inclined-vertical manometers on AHU test points
Filter-blockage alarms — Photohelic Series 3000 combined gauge/switch on air-handling units
BMS-integrated pressure monitoring — Digihelic DH3 with 4–20 mA output for building management
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Dwyer Products

3G Electric supplies Dwyer temperature controllers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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