If listed as used, it will have been previously used and will be sold in a used condition. The item condition will be clearly stated as one of the following: NEW, NEW (other), Refurbished, Used, or Spares & Repairs.
eBay
200W Voltage Converter 220V To 110V Transformer Step Down Transformer Voltage Converter Travel Adapter EU/US/UK Plug Inverter
Aliexpress UK
CONNECT Type CL Isolation Transformer 25VA 230VAC Input 24VAC Output
eBay
1 Channel DC3-24V Optocoupler Isolation Module Relay Board Adaptive SCR Solid State Relay Switch Module MOS Transistor Output
Aliexpress UK
Black Nickel .
eBay
DC 12V~24V 60A High Power Dual Channel DC Motor Drive Module Board H-bridge Optocoupler Isolation PLC Motor Speed Control
Aliexpress UK
eBay
GC-1201S two master and one slave RS485 repeater photoelectric isolation Modbus Dual Host Hub
Aliexpress UK
Material: Copper, Plastic. High temperature resistant, anti-corrosion, long service life. Mainly used in 2.1 channel amplifier board, board, preamplifier. Power: 30W.
eBay
1 2 4 8 Channel Relay Module 30A With Optocoupler Isolation 5V 12V 24V Supports High And low Triger Trigger
Aliexpress UK
TRANSFORMER 240VAC/12VAC Current Rating 300mA Isolation Transformer Primary Voltages 1 x 240V Plug Type Power Rating 3VA Product Range SVHC No SVHC (15 Jan 2018) Secondary Voltages 12V Input Voltage 240VAC Output Voltage 12VAC Primary Voltages 1 x 240V
eBay
NP-12000-30 Neon Light Electronic Transformer Neon Sign Power Supply 12KV 30mA
Aliexpress UK
Complies with all relevant safety standards (BS61559, CE, IP41 rated). Faceplate depth is 5mm, depth into back box is 40mm (+clearance/wiring), total overall depth is 45mm. Includes colour-matched screws.
eBay
1Pc Intelligent Efficient Household 200W AC 220V To 110V Step Down Transformer Voltage Converter Travel Power Adapter
Aliexpress UK
1/3/5Pcs AC Active Output Onboard Precision ZMCT103C 5A Range Single Phase Micro Current Transformer Module Current Sensor
Aliexpress UK