Megger PSI700A Phase sequence indicator
- Operating Voltage: 90–600 VAC
- Frequency Range: 50 / 60 Hz
- Indicator Lamps: Five Function Lamps
- Safety Rating: EN 61010-1 CATIII 600V
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Description
Reliable Phase Sequence Detection Every Time
The Megger PSI700A Phase Sequence Indicator stands as a benchmark tool in the world of three-phase power system diagnostics. Its core purpose is to determine the phase sequence or phase rotation—an absolutely vital task for electrical professionals dealing with three-phase installations. Accurate phase rotation information is critical for the correct operation of motors, transformers, and other industrial equipment. Incorrect phase sequence can lead to equipment malfunction, damage, or unsafe working conditions. Designed for robustness, lightweight handling, and operational efficiency, the PSI700A ensures that detecting the correct phase order is never left to guesswork. By quickly pinpointing rotation sequence (ABC clockwise or CBA counterclockwise) and identifying open phases, the PSI700A delivers both reliability and peace of mind to engineers and technicians across a wide spectrum of industries.
Simple, Hassle-Free Operation for All Users
Ease of use defines the Megger PSI700A. Unlike many diagnostic tools requiring complicated setup, calibration, or external power sources, the PSI700A requires nothing but connection to the system under test. The device is equipped with three color-coded leads—red, yellow, and blue—each with insulated clips for secure and safe connection to the A, B, and C phases of any installation. Once connected, passive lamp indicators immediately display phase presence and rotation direction: three lamps illuminate if all phases are live, while individual lamps indicate open or missing phases. This intuitive visual design ensures that even non-specialists can operate the device confidently, and specialists can perform their jobs swiftly and unerringly.
Essential Applications Across Electrical Environments
The primary application of the Megger PSI700A Phase Sequence Indicator is in three-phase power system commissioning and maintenance. Electricians use it to verify correct wiring in new installations, ensuring motors, pumps, or HVAC equipment operate as designed. Maintenance and service staff rely on the PSI700A during troubleshooting: the indicator quickly identifies shifts in phase sequence or the presence of a missing phase when responding to malfunction or downtime reports. In industrial automation, the tool helps prevent costly errors and equipment damage from reversed connections. Utility technicians also deploy the PSI700A during substation or switchgear maintenance, and manufacturers recommend it for machinery commissioning and electrical upgrades. The PSI700A’s versatility is evident—wherever three-phase safety and precision are needed, this instrument plays a vital role.
Robust Design for Demanding Work Environments
Durability is essential in a tool designed for fieldwork, and the PSI700A excels in this aspect. Constructed with a tough insulated enclosure, the device can withstand the bumps and minor impacts encountered on construction sites, factories, and industrial settings. It contains no moving parts or batteries, and there are no binding posts, further reducing chances of operational failure or breakdown. The PSI700A is both compact and lightweight, weighing just 420 grams (14.4 ounces), and is conveniently sized to fit into any technician’s toolkit or be carried by hand throughout a facility. An included canvas carrying case protects the instrument further, ensuring it is always ready for the next task—no matter the location or environment.
Advanced Safety and Versatile Performance Range
Electrical safety is paramount, and the Megger PSI700A is engineered with this uncompromising priority in mind. Rated for use on 90 to 600 volts AC, and designed to operate across both 50 and 60 Hz frequencies, the PSI700A covers the vast majority of commercial and industrial three-phase systems. Its robust construction, combined with EN 61010-1 CATIII 600V safety compliance, assures technicians of safe operation even in high-power environments. The insulated clips and enclosure minimize risk from accidental contact with live conductors, while the indicator lamps provide clear visual cues without requiring direct interaction with the circuitry. The wide voltage and frequency range makes the PSI700A a go-to choice for professionals in power generation, distribution, building services, and manufacturing worldwide.
tpt24: The Best Place to Purchase PSI700A
When reliability, authenticity, and global service matter, tpt24 is unequivocally the premier online store for the Megger PSI700A Phase Sequence Indicator. With a reputation for delivering only original, top-quality products, tpt24 guarantees the authenticity and operational excellence of every instrument sold. No matter where you are in the world, tpt24 ensures prompt, insured delivery—protecting your investment from order through to final handoff. The online platform provides detailed product specifications, guidance, and support, helping users make well-informed purchasing decisions. Trusting tpt24 to supply your PSI700A means you receive a genuine piece of Megger equipment, backed by robust warranties and professional after-sales service, wherever your project may be.
Comprehensive Technical Features and Accessories
As an engineering-grade tool, the PSI700A comes equipped with everything required for comprehensive phase indication. The five indicator lamps are specifically designed: three lamps signal the presence of each individual phase (A, B, or C), while two lamps clearly display the rotation direction—ABC for clockwise and CBA for counterclockwise. The device’s leads extend to 40 inches (101.6 cm), allowing flexible reach and connection in crowded or awkward electrical panels. The input is protected at CATIII 600V levels for peace of mind during live testing. Each unit includes a quality canvas carrying case and the necessary alligator clips—ensuring a complete solution is always at hand from day one. The smart, ergonomic layout of the PSI700A’s interface means that daily repetitive use remains comfortable and efficient, even during long troubleshooting sessions.
Summary
To summarize, the Megger PSI700A Phase Sequence Indicator is a thoughtfully engineered solution for safe and accurate phase sequence verification in modern electrical systems. Its no-battery, passive design, broad compatibility, robust safety markings, and comprehensive indication features make it an essential device for every electrician, engineer, and maintenance team. Whether you’re overseeing new equipment installation or troubleshooting complex three-phase power issues, the PSI700A simplifies the process and ensures safety at every step. By choosing to purchase from tpt24, customers receive guaranteed authenticity, performance, and peace of mind with every order. This combination of functionality, durability, and global support positions the PSI700A as a leading choice for phase sequence indication needs worldwide.
Specifications
| Parameter | Details |
|---|---|
| Model | PSI700A |
| Measurement Function | Phase Sequence, Rotation, Open Phase Detection |
| Voltage Range | 90 – 600 VAC (3-phase) |
| Frequency Range | 50 / 60 Hz |
| Indicator Lamps | 5 (ABC Rotation, CBA Rotation, A/B/C Phase Presence) |
| Leads | 3x Color-coded (Red, Yellow, Blue) 40-inch (101.6 cm) |
| Alligator Clips | 3x, Insulated, CATIII 1000V |
| Construction | Rugged, Insulated Handheld Enclosure |
| Power Source | No battery or power required |
| Operating Temp. | 0 – 40 °C |
| Storage Temp. | 0 – 40 °C |
| Safety Standard | EN 61010-1 CATIII 600V |
| Dimensions | 5.1H x 3.6W x 1.6D in. (130H x 91W x 41D mm) |
| Net Weight | 420 grams (14.4 oz) |
| Carrying Case Included | Canvas, 7.0H x 3.75W x 4.0D in. (178H x 95W x 102D mm) |
| Order Number | PSI700A |
| Manufacturer | Megger |






