14 in stock
3-Phase Loss Protection DEESYS DFR-021D Monitoring Relay
10
People watching this product now!
DEESYS DFR-021D
Reliable 3-phase protection relay that safeguards motors and equipment against phase loss, reversal, and voltage unbalance, ensuring operational continuity and reduced downtime.
| Brand | DEESYS |
| Model | DFR-021D |
| Voltage | 380-440V AC 3-Phase |
| Country of Origin | China |
| Weight | 0.25 kg |
| Dimensions | 90 x 60 x 65 mm |
| Certifications | CE, RoHS, CCC |
| SKU / MPN | DFR-021D |
| What’s in the box | DFR-021D Relay, mounting clips, user manual |
| Phase Monitoring | 3-phase (L1, L2, L3) with phase loss, phase reversal, and phase unbalance protection |
| Trip Delay | Adjustable 0.1 to 10 seconds |
| Contact Configuration | 1 C/O (SPDT) relay output, 5A at 250V AC |
| LED Indicators | Power ON (green), Fault (red) |
| Mounting | 35mm DIN Rail (EN 50022) |
| Power Consumption | Less than 3 VA |
Key benefits: Wide voltage range, adjustable trip delay, clear LED status indication, compact DIN rail design, SPDT relay output, easy installation, low power consumption
Typical applications: Motor protection in pumps, compressors, conveyors, HVAC systems, industrial machinery, control panels, and 3-phase equipment in factories and commercial buildings
Lifecycle: Active product, new release with 5+ years availability
1 review for 3-Phase Loss Protection DEESYS DFR-021D Monitoring Relay
Clear filtersOur Advantages
Exact match for many brands
We make replacements easy with an exact match for almost any brand.
We use OEM catalogs to match your part number
Don’t worry about ordering the wrong part by matching your part number with our OEM catalogs.
Competitively priced
Shop with confidence knowing we are offering very competitve pricing!
Orders usually ship the same day
Rest assured your order will arrive as soon as possible knowing we usually ship the same day.
Individually inspected
Before any package is shipped we carefully inspect every product to ensure quality.
Guaranteed for one full year
All of our New Surplus and Reconditioned products come with a 1 year warranty.
Run Business
Building a reputation for quality products at a reasonable price. Our inventory is far more extensive than what can be represented on our web site, so please call one of our knowledgeable salesmen with your specific needs.
David L. –
Very sturdy enclosure, IP rating seems genuine. Good value for money.