Catalog No. K-281
Polyphase Socket Tester
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. 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).
POLYPHASE SOCKET TESTER CATALOG NO. K-281
TESCO Metering 925 Canal Street · Bristol, PA 19007 · Phone: 215.228.0500 tescometering.com
2026 V1
138
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