For critical components, two is one and one is nothing. Research your trainer and get replacement parts! The chutes and channels for the loading system can leave you stuck if you can't complete these circuits.
TWTADE/AC 24V 10A Coil Electromagnetic Power Relay 8 Pins 2DPT 2NO+2NC With Indicator Light And Socket Base -YJ2N-LY
9 Review
Universal Rotary Cam Selector Latching Switches - VictorsHome Changeover Switch LW28-32 With 3 Positions, 12 Terminals For 690V, 32A Capacity
9 Review
Vacuum cleaner KARCHER VC 3, yellow
176 Review
Adjustable AC Current Sensing Switch: SZC23 No AL-CH Model, 0.2A-30A Range
14 Review