HTC ST-852 Phase Sequence & Open Phase Detector

Product Summary:
The HTC ST-852 is a portable phase sequence and open phase detector designed for quick and accurate checks of 3-phase AC power lines. Ideal for electrical installations and industrial systems.

Key Features:

• Operational Voltage: 200~480V (3-Phase AC)

• Frequency Range: 20~400Hz

• Open Phase & Phase Sequence detection by LED & Buzzer

• Withstand Voltage: 4000V for 1 minute

• Compact size: 85(H) x 64(W) x 23(D) mm

• Supplied with test leads, alligator clips, and a carrying case

Application:

• Electrical panel installations

• Industrial machine maintenance

• Generator and transformer testing

• Utility power diagnostics

Product Benefits:

• Clear visual and audible alerts for quick fault detection

• Enhanced safety during installation checks

• Easy to use with standard accessories included

• Compact and portable for field use

FAQs:

Q1: Can the HTC ST-852 detect both phase sequence and open phase?
Yes, it can detect both using LED indicators and buzzer alerts for quick identification.

Q2: What is the operational voltage range of this device?
The detector works within 200V to 480V AC for 3-phase systems.

Q3: Is it safe for continuous use?
Yes, but usage is time-limited: up to 60 minutes at 200V and 40 minutes at 400V AC.