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UNITED ELECTRIC J21K-232 Differential Pressure Switch - Replacement HVACR Controls, Switches & Thermostats
UNITED ELECTRICReplacement HVACR Controls, Switches & Thermostats

UNITED ELECTRIC J21K-232 Differential Pressure Switch

UNITED ELECTRIC Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Differential Pressure Switch.

SKU 3G-OTH-92683

Also listed as: J21K232 · J21K 232

Brand
UNITED ELECTRIC
Item
J21K-232 Differential Pressure Switch
Part Number
J21K-232
Category
Replacement HVACR Controls, Switches & Thermostats
Available to Order
Also known as:J21K-232UNITED ELECTRIC
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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

UNITED ELECTRIC
Manufacturer Part Number
J21K-232
Product Type
Differential Pressure Switch

Technical Documents

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

Product Description

UNITED ELECTRIC Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Differential Pressure Switch.

Frequently Asked Questions

What is the UNITED ELECTRIC J21K-232 differential pressure switch used for?

The UNITED ELECTRIC J21K-232 differential pressure switch is used in HVACR systems to monitor and control pressure differences, triggering alarms or equipment shutdown when setpoints are exceeded. It is commonly applied in air handling units, cleanrooms, and industrial ventilation to ensure safe operation and energy efficiency.

What are the specifications of the UNITED ELECTRIC J21K-232?

The UNITED ELECTRIC J21K-232 is a differential pressure switch with manufacturer part number J21K-232. It is designed for HVACR control applications. For detailed technical data such as pressure range, electrical ratings, and wetted materials, consult the manufacturer's datasheet or contact 3G Electric for assistance.

Where to buy the UNITED ELECTRIC J21K-232 worldwide?

You can source the UNITED ELECTRIC J21K-232 differential pressure switch worldwide through 3G Electric. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the UNITED ELECTRIC J21K-232 differential pressure switch?

Install the UNITED ELECTRIC J21K-232 by mounting it in a clean, dry location near the pressure sensing points. Connect the high- and low-pressure ports per the manufacturer's diagram, and wire the switch according to your control system voltage (e.g., 24 VDC). Always follow local electrical codes and verify setpoints with a manometer.

Used in

Common applications for UNITED ELECTRIC
HVACR systems — UNITED ELECTRIC pressure switches like H400K-457 for refrigerant pressure monitoring and compressor protection
Industrial refrigeration — Differential pressure switch J21K-254 for detecting filter clogging in ammonia or freon systems
Boiler control — Pressure switch 10F15 for low-water cutoff or high-pressure limit in steam boilers
Compressor control — Switch 10-C11 for unloader control or pressure regulation in reciprocating compressors
Process filtration — Differential pressure switch J21K-254 for monitoring pressure drop across bag filters or cartridge housings
Pump protection — Pressure switch H100-218 for dry-run protection or pressure-based pump start/stop in water systems
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UNITED ELECTRIC Products

3G Electric supplies UNITED ELECTRIC replacement hvacr controls, switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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