S-TEC Populated DB Surface 15Way

• The S-TEC 15-Way Pre-Populated Surface Mount Distribution Board offers an expansive and reliable solution for electrical distribution and protection in larger residential and light commercial applications.
• This professionally assembled unit features high-quality S-TEC components, including a robust 63A 2-Pole main isolator, a sensitive 63A earth leakage device, and a versatile array of miniature circuit breakers (1x32A, 3x20A, 2x10A).
• Housed within a durable ABS enclosure with a clear polycarbonate window, this 15-way board provides ample space for current needs and future expansion, simplifying installation and ensuring compliance with the highest safety standards. It's "The Safe Option!" for demanding electrical setups.

Features

• Enclosure: 15-Way Surface Mount DB-ST Series.
• Construction: Durable ABS body with a transparent Polycarbonate (PC) window for easy inspection.
• 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 (MCBs):
  • 1 x S-TEC ST47 32A 1P 3kA C-Curve Miniature Circuit Breaker.
  • 3 x S-TEC ST47 20A 1P 3kA C-Curve Miniature Circuit Breaker.
  • 2 x S-TEC ST47 10A 1P 3kA C-Curve Miniature Circuit Breaker.
• Internal Components: Fitted with Neutral Bar, Earth Bar, and an appropriate busbar (e.g., BB 6 MOD) for MCB connections.
• Spare Capacity: Offers significant spare ways for future circuit additions.
• Compliance: All components are fully compliant with NCRS (LOA & RCC), IEC, and SANS standards.
• Design: Aesthetically pleasing and modern for installations where visibility is a factor.
• Mounting: Designed for straightforward wall surface mounting with an internal DIN rail for components.

Benefits

• Efficient Installation: Pre-populated design significantly reduces installation time and complexity, especially for larger setups.
• Comprehensive Safety: Provides robust protection against overloads, short circuits (via MCBs), and life-threatening earth leakage faults (via RCCB).
• Guaranteed Component Synergy: All included S-TEC components are engineered for optimal compatibility and performance.
• Future-Proof Design: The 15-way capacity allows for easy addition of future circuits without needing a new board.
• Long-Term Reliability: Built with high-quality, durable materials for extended service life.
• Simplified Compliance: Meets all relevant South African and international electrical safety standards, ensuring peace of mind.
• User-Friendly Monitoring: The clear window allows for at-a-glance status checks of all protective devices.
• Versatile Application: Suitable for larger homes, multiple-dwelling units, and more extensive light commercial environments.

In-Depth Technical Specifications

A. S-TEC 15-Way Surface Mount Distribution Board (DB-ST-15W-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: Integral to 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
  • 3 x ST47 20A 1P 3kA C-Curve
  • 2 x ST47 10A 1P 3kA C-Curve

4. Busbar

• Type: BB 6 MOD (or equivalent 6-module pin-type busbar) included for the 6 outgoing MCB interconnections.

Ideal Use

• Larger residential properties, multi-story homes.
• Developments with multiple units or granny flats.
• Small office blocks or larger retail spaces.
• Light commercial workshops requiring diverse circuit protection.
• Installations needing significant spare capacity for future expansion or specialized circuits (e.g., dedicated appliance circuits, outdoor lighting).
• Any indoor or undercover application where robust, expandable, and compliant electrical distribution is paramount.

Tips

• Professional Installation is Mandatory: This distribution board must be installed, tested, and commissioned exclusively by a qualified and certified electrician, adhering to all local wiring regulations (e.g., SANS 10142-1).
• Torque Specifications: Ensure all terminal connections are meticulously tightened to the manufacturer's specified torque values to prevent loose connections, arcing, and potential fire hazards.
• Regular Earth Leakage Testing: Periodically (monthly recommended) test the earth leakage device by pressing its integrated "T" (Test) button to verify its operational integrity.
• Utilizing Spare Ways: When adding new circuits to the spare ways, always use S-TEC or other NCRS-approved compatible components and ensure the total load does not exceed the board's or main incomer's rating.
• Safety First: Before opening the distribution board cover for any reason (inspection, maintenance, adding circuits), ALWAYS ensure the main electrical supply to the board is completely isolated and locked out.
• Installation Environment: Install in a clean, dry, and accessible indoor or well-covered location that respects the IP40 rating. Avoid exposure to excessive dust, moisture, or corrosive substances.
• MCB Temperature Considerations: For optimal performance of MCBs, be mindful of the ambient operating temperature. Refer to the S-TEC ST47 datasheet for temperature derating information if installing in environments with consistently high temperatures.