· Phase Sequence Indicators
Phase Sequence Indicator - Disc Rotating Type
Model PSI-1
Disc-rotating phase sequence indicator, bakelite body, 100–500 V AC.
₹1,600₹2,41034% off
Inclusive of 18% GST
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- GST tax invoice with every order
- Secure payment by UPI, card or netbanking
- 12-month warranty against manufacturing defects
About.
The PSI-1 is a disc-rotating phase sequence indicator in a bakelite body. The rotating disc physically shows the direction of phase rotation (RYB or RBY), giving an immediate visual indication that is easy to interpret even in bright field lighting. It is used before connecting or energising any 3-phase motor, generator, or transformer - verifying correct phase sequence prevents reverse rotation, mechanical damage, and safety hazards. The PSI-1 connects to the 3-phase supply via three colour-coded test leads. Compact and lightweight, it is a standard tool for electrical commissioning engineers, electricians, and industrial maintenance teams.
- 3-phase supply phase sequence verification
- Motor connection commissioning
- Panel and switchboard testing
In the box
- 3 Nos. 1m testing leads (R/Y/B) with crocodile clips
Specifications.
- Indication Method
- Disc rotation
- Body
- Bakelite
- Operating Voltage
- 100–500 V AC
- Frequency
- 25–65 Hz
- Operating Position
- Horizontal only
- Accessories
- 3 Nos. 1m testing leads (R/Y/B) with crocodile clips (supplied)
- Warranty
- 12 months against manufacturing defects only
