The SB-TEK Electrical Wiring Trainer Board is a comprehensive hands-on training platform designed to provide learners with practical knowledge of electrical wiring, component interconnections, circuit analysis, and electrical measurement techniques. This trainer is ideal for technical institutes, polytechnic laboratories, and vocational training centers, offering complete exposure to basic and advanced wiring practices, sequence control circuits, motor operations, logic circuits, and electrical protections. All component symbols and electrical diagrams are clearly printed on the front panel for intuitive learning. The system uses 4mm terminals and multi-color connection cables, ensuring safe, easy, and error-free wiring. The built-in low-voltage power supplies guarantee maximum operator safety.
TECHNICAL SPECIFICATIONS
The system provides a wide range of electrical components that can be interconnected in different configurations to help learners acquire fundamental knowledge in electrical engineering, electrical installations, and measurement techniques. The platform allows students to study and check the main laws and principles of electricity with clear diagrams and symbols represented on the front panel. All connections are performed using 4mm safety terminals with cables of different colors. The embedded power supplies ensure extra-low and safe operating voltages.
General components include a general switch, fuse, and signaling lamp; a safety single-phase transformer rated at 115-230V/6-12-24 VAC-1A; two fuse-holders with 6x30-1A fuses; one moving-iron ammeter with 0.5-1A range; one moving-iron voltmeter with 25V range; ten resistors of values 2, 4, 8, 16, 31.5, 63, 250, 500, 1000, 2000 ohm; a linear rheostat 100 ohm / 25W; four diodes A-100V; two lamp-holders with 24-V signaling lamps; one 24-Vac buzzer; one electrolytic capacitor 100 µF 25V DC; two electrolytic capacitors 500 µF 25V DC; and two inductances 60 mH 0.5 A.
Electrical Sequence Trainer Section
This section provides hands-on wiring practices using real electrical components with contact-based operation. The system simulates real-world field components and power sources while ensuring safety through insulated connection cables and insulated terminals.
Experimental Contents Include:
• Basic circuit
• Logic circuit
• Self-holding circuit
• Timer circuit
• Priority circuit
• Detection circuit
• Lamp and alarm circuit
• Motor operational circuit
• Reactor driving circuit
• Jog circuit
• Forward & reverse circuit
• Delay operation circuit
• Time activation circuit
• Y-? operational circuit
The trainer includes an Earth Leakage Circuit Breaker (ELCB) rated at AC 220V 60Hz, with rated current 30A and residual current 30mA. Three electronic contactors (5a2b) with contact capacity AC 240V / 15A / 4.5kW and auxiliary contact capacity AC 240V 3A are included. An electronic overload relay (EOCR, 1/2HP) with internal 3-CT tunnel-type sensors, current setting 0.3–1.5A, and trip time 0–30 sec, with output contact capacity AC 230V 3A (resistive load) is provided. Two relays (4C) with AC 220V 3A contact capacity are included. A 30-second ON-delay timer with output contact capacity AC 220V 1.5A and a flicker timer (6 seconds, ON-start operation, AC 220V 2.5A) are part of the system.
The trainer includes a 3-phase induction motor rated for 3-phase AC 220V/380V/25W, squirrel-cage rotor, 4-pole, Y-? starting, and a rotary disc for rotational speed detection. An electronic brake with adjustable intensity and a proximity sensor are included. A digital counter is also provided. The built-in DC power supply outputs DC 24V 1A (fuse-protected). Additional components include four lamps, one buzzer, four push buttons, two toggle switches (1a1b), and two fuse-holders with fuses. A support structure with adjustable angle is included.
Standard Accessories
The system includes a power cord, a full set of 40 insulated connection cables, a user’s guide and experimental manual, and a Digital Multifunctional Meter.
The multifunction meter includes LCD display wiring tips, user-defined backlight settings (10/20/30 sec), ±0.2% precision, fast response rate, RMS measurement capability, minimum/maximum/average data display, earth resistance measurement in two and three points, automatic power-off, Bluetooth communication, display of reed wire connections, and auto/manual range selection. Calibration can be initiated with a single button.
Measurement capabilities include:
• ACV: 0.0–7500V True RMS
• DCV: 0.0–999.9V
• Insulation resistance:
DC 1000V: 0.00M?–9.99M?, 10.00M?–99.99M?, 100.0M?–1999M?
DC 500V: 0.00M?–9.99M?, 10.00M?–99.99M?, 100.0M?–999.9M?
DC 250V: 0.00M?–9.99M?, 10.00M?–99.99M?, 100.0M?–999.9M?
• Ground resistance (EAR ?): 0–2000?
• Ground voltage (EV): 0.0–750.0V AC True RMS
• PHA: ACTION-750V LCD display
• HOT: AC 70V–750V buzzer & LCD display
• ACA: 0–9999A True RMS
• For: 0.00–9.99mA True RMS
• Communication: Bluetooth 4.0
Accessories include a user manual, 1.5V AA alkaline batteries (5 pcs), protective rubber cover (orange), carrying bag (1 ea), red test lead wire (mega, 1.2m), black test lead wire (mega 2, 1.2m), CAT III red and black test probes, black crocodile clip (EN61010 CAT III), green test lead wire (KSC3325, 1.2m), red test lead wire (600V, 20m roll), yellow test lead wire (600V, 10m roll), and green test lead wire.
