Khan, I was wrong. I thought it was a solar water heater. I didn't see the supplementary question. It belongs to the ninth category. I saw it for you.
(5) ammeter 090036, indicator (electric) 090042, ammeter 090092, capacitance tester 090 108, power meter 090203, and leakage indicator.
0902 13, electric loss indicator 0902 13, electric meter 0902 14, high frequency meter 090267, frequency meter 090268, sensor (electric) 090304, Europe.
Voltmeter 090368, oscilloscope 090374 and voltmeter 090500.
Watt-hour meter C090057, electric probe C090058, complete electrical calibration device C090059, voltage regulator C090060 for electrical measurement. ※
(3) Electric coil 0900 1, magnet 090023, electromagnetic coil 090024, amplifier 090037, amplifier tube 090038, capacitor 090 140, conductance.
Body 090 14 1, photoelectric switch (electrical appliance) 090 168, glass-covered live conductor 090224, fuse 090269, choke (impedance) 09044 1, choke.
Flow coil (impedance) 09044 1, resistor 090427, rheostat 090432, vacuum tube (radio) 09049 1, variable inductance 090493, and protection.
Fuse 090505, alloy wire (fuse) 090505, inductor coil bracket 0905 14, photocell 09053 1, matte discharge tube 090559, crystal.
Electron tube (electronic) 090624
Emission tube C090087, UHF tube C090088, electron beam tube C090089, potentiometer C090090, oscilloscope tube C09009 1, electron tube C090092. ※,
Semiconductor device C090093, magnetic material and device C090094, ceramic filter C090095, atomizing sheet C090 132.
(4) Transformer (electricity) 090049, distribution box (electricity) 090054, terminal (electricity) 090089, cable armor 090098, current collector 090 129, and brake.
Box (electricity) 090 13 1, rectifier 090 132, conduit 090 142, conductance conduit 090 142, circuit breaker 090 143, and electrical connector 090.
Box (electricity) 090 145, switchboard 090 146, precious metal plug 090 147, electric plug 090 148, electric regulating equipment 090 150, transformer.
Devices 090 153, electrical switches 090 164, contacts (electrical connectors) such as plugs and sockets 090 166, connectors (electrical connections) such as sockets and plugs 090 166,
Rectifier 090 167, pressure reducer (power supply) 090 168, circuit breaker 09019, switchboard (electricity) 090 197, and distribution console (electricity) 090/kloc.
090222, armature (electric) 090305, inverter (electric) 0903 10, automatic timing switch 090353, connector (electric) 090442, thermionic lamp.
And a lamp tube 090506, a dimmer (regulator) (electric) 090606, a dimmer (electric) 090606, a dimmer (electric) 090606 and a cable connector sleeve 090626.
Power socket cover 090667, lighting equipment ballast 090672, electromagnetic valve (electromagnetic switch) 090675, surge protector 090676, stage lighting adjustment.
Equipment 090682
Transformer C090096, sensor C090097, degausser C090098, voltage regulator C090099, regulated power supply C090 100, up-converter C090 102. ※,
Low-voltage power supply C090 103, high-low voltage switch board C090 104, starter C090 105, fuse C090 106, bus duct C090 107 and electric heating protective sleeve C09.
Sorry, I really don't know which one you are talking about. Please have a look for yourself.