S-TEC Populated DB Surface 8Way

• The S-TEC 8-Way Pre-Populated Surface Mount Distribution Board is a comprehensive, ready-to-install solution designed for robust electrical protection in residential and light commercial applications.
• This aesthetically pleasing unit comes factory-fitted with high-quality S-TEC components, including a 63A main isolator, a sensitive 63A earth leakage device, and a versatile set of miniature circuit breakers (1x32A, 2x20A, 1x10A), all housed in a durable ABS enclosure with a polycarbonate window.
• It simplifies installation, ensures component compatibility, and meets stringent safety standards, making it the "Safe Option!" for your electrical distribution needs.

Features

• Enclosure: 8-Way Surface Mount DB-ST Series.
• Construction: Durable ABS body with a clear Polycarbonate (PC) window.
• Pre-Populated: Includes S-TEC 63A 2-Pole Main Incomer Isolator.
• Earth Leakage Protection: S-TEC STL1-63 63A 1P+N 30mA Earth Leakage Device (RCCB).
• Circuit Protection:
  • 1 x S-TEC ST47 32A 1P 3kA C-Curve Miniature Circuit Breaker (MCB).
  • 2 x S-TEC ST47 20A 1P 3kA C-Curve Miniature Circuit Breaker (MCB).
  • 1 x S-TEC ST47 10A 1P 3kA C-Curve Miniature Circuit Breaker (MCB).
• Internal Components: Fitted with Neutral Bar, Earth Bar, and appropriate busbar for MCB connections.
• Compliance: Components are fully compliant with NCRS (LOA & RCC), IEC, and SANS standards.
• Design: Aesthetically pleasing for visible installations.
• Mounting: Wall surface mount with DIN rail for components.

Benefits

• Time-Saving Installation: Pre-populated design significantly reduces installation time and complexity.
• Enhanced Safety: Provides comprehensive protection against overloads, short circuits (MCBs), and earth leakage faults (RCCB), safeguarding people and equipment.
• Guaranteed Compatibility: All included S-TEC components are designed to work seamlessly together.
• Reliable Performance: Built with high-quality materials and components for long-lasting service.
• Simplified Compliance: Meets key South African and international electrical safety standards.
• User-Friendly: Clear window for easy inspection of component status.
• Versatile Application: Suitable for a range of domestic and light commercial environments.
• Cost-Effective: Offers an economical solution by bundling essential components.

In-Depth Technical Specifications

A. S-TEC 8-Way Surface Mount Distribution Board (DB-ST-8W-PS)

B. Included S-TEC Components

1. Incomer Isolator (Main Switch)

• Type: Main Isolator
• Poles: 2-Pole (2P)
• Rated Current (In): 63A
• Rated Voltage (Ue): 230V/415V AC
• Mounting: DIN Rail
• Standard Compliance: Part of NCRS (LOA & RCC) requirements

2. Earth Leakage Device (S-TEC STL1-63)

• Model: STL1-63
• Type: RCCB (Residual Current Circuit Breaker without overcurrent protection)
• Standard: VC8035, IEC61008-1, CE Marked
• Poles: 1P+N (2-Pole)
• Rated Current (In): 63A
• Rated Voltage (Ue): 230V AC
• Rated Frequency: 50/60 Hz
• Rated Residual Operated Current (IΔn): 0.03A (30mA)
• Rated Limited Short Circuit Current (IΔc): 6000A
• Rated Making & Breaking Capacity (Im / IΔm): 630A (for In=63A)
• Protection Degree: IP20
• Electrical Life Expectancy: 1000 operations
• Mechanical Life Expectancy: 2000 operations
• Ambient Operating Temperature: -30°C to +60°C (daily average ≤35°C)
• Best Ambient Temperature: 30°C
• Terminal Connection: Cable/Pin-type busbar (Top and Bottom)
• Tighten Torque (max): 3.0Nm
• Mounting: DIN Rail (35mm)

3. Miniature Circuit Breakers (S-TEC ST47 Series)

• Model: ST47
• Standard: SANS556-1, IEC60947-2, VC8036, CE Marked
• Poles: 1-Pole (1P)
• Rated Voltage (Ue): 230V AC
• Rated Frequency: 50/60 Hz
• Rated Breaking Capacity (Icn): 3kA
• Thermo-magnetic Release Characteristic: C-Curve (white toggle)
• Protection Degree: IP20
• Electrical Life Expectancy: 4000 operations
• Mechanical Life Expectancy: 10000 operations
• Ambient Operating Temperature: -30°C to +60°C (daily average ≤35°C)
• Best Ambient Temperature: 30°C (Calibrated for South Africa at 40°C)
• Terminal Connection: Cable/Pin-type busbar (Top and Bottom)
• Tighten Torque (max): 2.5Nm
• Mounting: DIN Rail EN 60715 (35mm)
• Specific MCBs Included:
  • 1 x ST47 32A 1P 3kA C-Curve
  • 2 x ST47 20A 1P 3kA C-Curve
  • 1 x ST47 10A 1P 3kA C-Curve

4. Busbar

• Type: Appropriate pin-type busbar for MCB interconnections included.

Ideal Use

• Residential dwellings (houses, apartments, townhouses).
• Outbuildings, garages, and granny flats.
• Small workshops and light industrial units.
• Retail shops and small office spaces.
• Site offices and temporary installations (e.g., containers).
• Any indoor or undercover application requiring reliable circuit distribution and protection.

Tips

• Professional Installation: This distribution board must be installed, tested, and commissioned by a qualified and certified electrician in accordance with local wiring regulations.
• Torque Settings: Ensure all terminal connections are tightened to the manufacturer's specified torque values to prevent loose connections and potential hazards.
• Earth Leakage Testing: Regularly test the earth leakage device by pressing the "T" (Test) button (monthly is recommended) to ensure it is functioning correctly.
• Component Compatibility: While pre-populated, if any changes or additions are made, ensure new components are compatible with the S-TEC system and overall board rating.
• Safety First: Always isolate the electrical supply before opening the distribution board cover or performing any maintenance. Lethal voltages are present inside.
• Environment: Install in a location that adheres to the IP40 rating, away from excessive moisture, dust, and corrosive atmospheres.
• Temperature Considerations: For MCBs, be mindful of ambient temperatures. Refer to the ST47 datasheet for temperature derating factors if operating in environments significantly outside the calibrated 30°C/40°C range.