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Discussion History

Protection and Monitoring

Assembly

Thermal and overcurrent protection and an insulation monitor where the secondary is run as an unearthed (IT) system. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Protection and Monitoring parts and their functions

5 top-level parts · 10 parts in total · full bill of materials below
Protection and Monitoring parts diagram: 1 thermal cutout, 2 winding temperature sensor, 3 protective fuse, 4 line insulation monitor, 5 relay. 10 parts in 5 top-level items.
Protection and Monitoring parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 Thermal Cutout 1× Winding thermal cutout
2 Winding Temperature Sensor 2× Winding temperature sensor
3 Protective Fuse 4× Primary and secondary fuse
4 Line Insulation Monitor 1× Line insulation monitor for IT systems
5 Relay 2× Trip and alarm relay

3D model

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Build & assembly graph

expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly shared across products atomic part related product

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Bill of materials for Protection and Monitoring

5 top-level lines · 5 rows shown · 10 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 Thermal Cutout isolation-transformer-thermal-cutout 1× 1 · part
2 Winding Temperature Sensor isolation-transformer-temperature-sensor 2× 2 · part
3 Protective Fuse isolation-transformer-fuse 4× 4 · part
4 Line Insulation Monitor isolation-transformer-insulation-monitor 1× 1 · part
5 Relay relay 2× 2 · part

Where the protection and monitoring is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Isolation Transformer

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $3–$400. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳BOE
boe.com ↗ 		Beijing, CN Display panels 1,000 pcs 6–10 wks
🇨🇳Tianma
tianma.com ↗ 		Shenzhen, CN Display panels 1,000 pcs 6–10 wks
🇨🇳TCL CSOT
szcsot.com ↗ 		Shenzhen, CN Display panels 1,000 pcs 6–10 wks
🇨🇳Truly Opto
truly.net ↗ 		Shanwei, CN Displays & camera modules 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks