Polyphase Socket Tester (K-281)
$833.63
Knopp’s K-281 Polyphase Socket Tester is a professional-grade tool designed to identify backfeed conditions, grounds, short circuits, and wiring errors in meter sockets. It works with 120/240V, 120/208V, and 277/480V systems, making it a versatile solution for utility technicians. Equipped with high-intensity Power Lights and Fault Lights, the tester clearly indicates whether a meter is safe to set.
Description
K-281’s durable fiberglass-reinforced polycarbonate housing ensures long-lasting use in demanding field conditions, while the heavy-duty handle allows for quick and easy installation or removal.
Key Features:
- Works with 277/480V, 120/240V, and 120/208V meter sockets
- Detects backfeed, grounds, short circuits, and wiring errors
- Bright Power Lights and Fault Lights for clear status indication
- Sturdy handle for easy handling and removal
- 6-jaw design for accurate testing
- UL 94-5 VA Flame Rating for enhanced safety
- Fiberglass-reinforced polycarbonate housing for durability
Note: Canadian Polyphase unit (K-281-C) is also available (347/600 volt).
Specifications
| Unit | Details |
|---|---|
| Voltage Compatibility | 120/240V, 120/208V, and 277/480V |
| Design | 6-jaw configuration |
| Material | Fiberglass-reinforced polycarbonate |
| Flame Rating | UL 94-5 VA |
| Handle | Heavy-duty for quick installation/removal |
Product Documents
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Disclaimer:
TESCO Metering reserves the right to modify product designs, specifications, features, and documentation at any time as part of our continuous improvement process. All information is provided “as is” and may change without prior notice. While TESCO® strives for accuracy, completeness, and technical reliability, customers should verify the latest product details before making purchasing or engineering decisions. For confirmation of current specifications or application suitability, please contact TESCO® directly.







