Spec SheetThe Square D Thermal Overload Unit, Type S, Type B, is engineered for precise overload protection in control circuits. It features a melting alloy thermal overload element and a motor tripping class of 20, ensuring dependable operation under demanding conditions.
Constructed with high-impact thermoplastic and copper alloy fuse clips, this unit provides robust durability and reliable electrical contact. It is rated for a maximum of 30 Amps and 600 V, compatible with class CC fuses.
- Thermal overload type: melting alloy
- Motor tripping class: 20
- Fuse clip material: copper alloy, tin plated
- Fuse acceptance: class H, R, CC, M, J up to 200 Amps
- Maximum fuse rating: 30 Amps at 600 V
- Wire connectors: accept 14 to 10 AWG solid or stranded copper wire
This product is UL listed and CSA certified, with an AIC rating of 200,000 Amps, suitable for industrial control applications requiring reliable overload protection.
Technical Specifications
| Persona Type Ids | EU, LC, OM, OM8, PB |
| Persona Type Names | End User, Contractor, Original Equipment Manufacturer, OEM - Control Panelbuilder, Panel Builder |
| Market Segmentation Id | COMMERCIAL, INDUSTRIAL |
| Market Segmentation | Commercial, Industrial |
| Carbon Footprint Of The Distribution Phase A4 | 0.015062784881700087, 0 kg CO2 eq. |
| Carbon Footprint Of The End Of Life Phase C1 To C4 | 0 kg CO2 eq., 0.02152658808101991 |
| Carbon Footprint Of The Installation Phase A5 | 0.0060760025185404255, 0 kg CO2 eq. |
| Carbon Footprint Of The Manufacturing Phase A1 To A3 | 0.1 kg CO2 eq., 0.09658369691863965 |
| Carbon Footprint Of The Use Phase B2 B3 B4 B6 | 13 kg CO2 eq., 12.638798994081128 |
| Local Data Status | Publishable |
| Local Publishable Date | 2026-03-25 |
| Return Indicator | Y |
| Stocking Flag | Y |
| Stock Policy | 1 |
| Weee Scope | Out |
| Scope Perimeter | At least in Europe |
| Eoli Availability Display | No need of specific recycling operations |
| Reach Full Compliance Status | Reference contains Substances of Very High Concern above the threshold |
| Reach Full Compliance Status Id | CONTAINS_SVHC |
| Reach Compliance Directive | Reference contains Substances of Very High Concern above the threshold |
| Rohs Eur In Scope | No |
| Rohs Eur Status | Compliant By Exemption |
| Rohs Eur Full Compliance Status | Compliant By Exemption |
| China Rohs In Scope | No |
| China Rohs Label | 7 |
| With Recycled Cardboard | Yes |
| Without Single Use Plastic | Yes |
| Product Contributes To Saved And Avoided Emissions | No |
| Tier Id | 1 |
| Tier | 1 |
| Function Option Id | STANDARD |
| Function Option | Standard |
| Product Kit Identifier | N |
| Energy Efficiency Optimized | False |
| Motor Tripping Class | 20 |
Product Documents
For Square D Thermal Overload Unit Type S, Type B, Melting Alloy, Class 20 B3.30, compare the listed details with project drawings, replacement requirements, and any site-specific electrical or low-voltage conditions.
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