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- SELECTOR SWITCHES IN SHEET STEEL ENCLOSUREÂ
- HSN CODE : 85365010
SURDHI Innovation Throughout..
SURDHI Innovation Throughout..
The Surdhi Phase Selector in Sheet Steel Enclosure utilizes heavy-duty cam-operated rotary switches to manually route single-phase loads across an active phase in a 3-phase system. This allows operators to instantly bypass power outages on any single line by rotating the knob to another active phase.
Technical Specifications
- Enclosure Material: Powder-coated, corrosion-resistant sheet steel (CRCA) suitable for industrial and commercial environments.
- Switch Type: 1-pole, 3-way cam rotary switches.
- Current Rating: Available in various capacities including 32A, 40A, 63A, and 100A to handle different power demands.
- Voltage: Standard 415V AC power supply systems.
- Indicators: Often equipped with R, Y, B (Red, Yellow, Blue) LED phase indicators to instantly show which line is live.
- Mounting Type: Designed for both surface and flush mounting setups.
Operate the Selector
- Normal Operation: Turn each of the three rotary switches to their corresponding phase. For example, set one switch to R (Red), the second to Y (Yellow), and the third to B (Blue) to balance the load across all three phases.
- Phase Failure: If a specific phase experiences a power cut (the corresponding LED indicator will go dark), simply turn that switch to one of the other two still-active phases to instantly restore power to that circuit.
- Surdhi phase selector switches in sheet steel enclosures (specifically the Program 3060DB series) feature a physical layout of three distinct cam-operated rotary switches packed inside a single distribution box.This layout allows you to dynamically re-route any dead or low-voltage phase to a healthy phase, preventing partial blackouts across residential and commercial buildings.Mechanical Construction & Features
- Enclosure Architecture: Fabricated using heavy-gauge CRCA (Cold Rolled Close Annealed) sheet steel. It features an industrial-grade powder coating that resists rust, chemical corrosion, and scratching in outdoor or humid environments.
- Interior Terminals: Standard configurations come with heavy-duty Bakelite base terminal blocks. Bakelite offers excellent high-temperature insulation, preventing short circuits even if terminal screws loosen and draw an arc.
- Switch Mechanism: The unit utilizes a double-break butt-contact mechanism with silver-plated current-carrying contacts. This lowers electrical resistance, minimises heat build-up, and prevents contacts from fusing during high-load switching.
Electrical & Operational Specifications- Working Voltage: Rated for standard Indian three-phase AC systems operating at 415V AC, 50Hz.
- The "3 Rotary Switch" Configuration: The unit allocates one dedicated 1-Pole 4-Way cam switch to each of your output circuits or building sections (e.g., Switch 1 for Ground Floor, Switch 2 for First Floor, Switch 3 for Second Floor).
- Rotary Positions: Each of the 3 switches has 4 knob positions:
- Position 1 (R): Connects the load to the Red Phase.
- Position 2 (Y): Connects the load to the Yellow Phase.
- Position 3 (B): Connects the load to the Blue Phase.
- Position 4 (OFF): Completely isolates that specific load circuit.
- According to the official Surdhi Price List “Phase selector switches in sheet steel enclosure with 3 rotary switches & 3 indicators (R,Y,B)... Prog. No: 3060DB.
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Westside Controls 7.B.Murli Vihar Behind Canara Bank Sarojini Nagar Lucknow 226008Â
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Factory Westside Control, Khasra no-173, Amausi Station Road Naderganj Industrial  Area Lucknow226008
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