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ST 301 / ST 302 - Three Phase Pump Protector (DOL)
Reliable Direct-On-Line Protection for 3-Phase Pumps
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Key Highlights.
What makes this product stand out.
3-Phase Pump Compatibility
Supports surface & submersible pumps
DOL (Direct-On-Line) Control
Simple and efficient motor starting
Plug & Play Modules
Easy installation and maintenance
Manual Bypass Option
Ensures operation during control failure
Flexible Configurations
Suitable for diverse field applications
Enhanced Pump Life
Reduces wear through intelligent protection
Designed to perfection.
The ST 30x Series (DOL) is designed for 3-phase surface and submersible pumps, offering dependable protection with a user-friendly plug-and-play modular architecture. With built-in redundancy and flexible configurations, it ensures safe operation and extended pump life across various applications.
Core Features
Durable ABS enclosure with IP52 protection
Wide voltage operating range (270 - 520V)
LED indicators for real-time status monitoring
Built-in voltage & current display
SPP (Single Phasing Prevention)
Dry run protection system
Overload and fault protection
Timer and cyclic operation modes
Optional alarm/buzzer system
Float switch compatibility (ST 302 models)
Applications.
Borewell and submersible pump systems
Agricultural irrigation
Industrial water pumping
Commercial water supply systems
Water transfer and storage setups
Technical Specifications.
| Specification | Details |
|---|---|
| Voltage Range | 270 - 520V |
| Frequency | 50 Hz |
| Power (kW) | Up to 15 kW |
| Power (HP) | Up to 20 HP |
| Current | 18 - 32 Amps |
| Dimensions (mm) | 180 x 230 x 120 |
| Weight | 1.5 kg |
| Enclosure | ABS |
| Float Switch Support | Not Included |
Why choose this product?
Direct-on-line pump systems require reliable and straightforward protection. The ST 30x Series delivers efficient control, safeguards against faults, and ensures uninterrupted performance, making it ideal for both agricultural and industrial environments.
Inside the box.
1 No. ST 301 / ST 302 Device
User Guide
Downloads
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