Extech - Non-Contact Phase Sequence Tester, PRT200

Extech PRT200 Non-Contact Phase Sequence Tester

The Extech PRT200 is an essential handheld phase sequence tester for electricians, linemen, and maintenance professionals working with three-phase AC systems. It quickly identifies phase sequence orientation and detects live phases with both visual LED and audible beeper feedback — rated for input voltages from 75 to 1000VAC at 45–65Hz for reliable performance across standard industrial, commercial, and utility applications.

Key Features

• 75 to 1000VAC input range at 45–65Hz for reliable performance across industrial, commercial, and utility three-phase systems
• Bright LEDs indicate phase rotation direction — clockwise or counter-clockwise — and confirm which phases are energized
• Audible beeper feedback — intermittent tone for correct phase sequence; continuous tone for phase reversal detected
• Back cover magnet attaches securely to AC distribution panels for hands-free operation
• Fully insulated alligator clips with wide jaws for safe, stable connections on energized terminals
• Adjustable Hi/Lo LED brightness switch adapts to any lighting condition — from dimly lit electrical rooms to bright outdoor installations
• Low battery warning keeps you informed before power is lost in the field
• Rugged housing built for field durability in demanding utility and industrial environments

Specifications

• Part Number: PRT200
• Type: Non-contact phase sequence tester
• Input Voltage: 75 to 1000VAC
• Frequency: 45–65Hz
• Phase Detection: Clockwise / counter-clockwise rotation indication
• Feedback: LED (visual) + beeper (audible)
• Beeper: Intermittent = correct sequence; Continuous = phase reversal
• Mounting: Back cover magnet (hands-free panel attachment)
• Clips: Fully insulated alligator clips, wide jaw
• Brightness: Adjustable Hi/Lo LED switch
• Battery: Low battery warning indicator
• Application: Three-phase AC system phase sequence identification and live phase detection
• Vendor: Extech

Ideal Applications

• Phase sequence identification and verification on three-phase AC distribution panels, switchgear, and utility equipment
• Live phase detection during substation, industrial, and commercial electrical maintenance
• Any three-phase AC application requiring fast, accurate phase sequence and rotation direction diagnostics up to 1000VAC

Part Number: PRT200 | Vendor: Extech | Range: 75–1000VAC / 45–65Hz | Type: Non-Contact Phase Sequence Tester