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3UL2304-1A
Current Sensing Transformer, 80 mm, 40 A, Panel
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: SIEMENS
- Product type: Current Sensing Transformers
- SVHC: To Be Advised
- Inductance: -
- ET Constant: -
- Turns Ratio: -
- Product Range: 3UL23 Series
- Frequency Range: -
- Primary Current: 40A
- Transformer Mounting: Chassis Mount
- DC Resistance Primary: -
- Transformer Terminals: Screw
- DC Resistance Secondary: -
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 198.36 € |
| Current stock | 10+ |
| Lead time | 30 days |
**3UL2304-1A** **Data sheet** Residual-current transformer for residual current monitoring Bushing opening 80 mm Residual current 30 mA...40 A ||Residual-current transformer for residual current monitoring Bushing opening 80<br>mm Residual current 30 mA...40 A|Residual-current transformer for residual current monitoring Bushing opening 80<br>mm Residual current 30 mA...40 A| |---|---|---| |**General technical data**<br>~~ee~~||| |**product brand name**<br>~~ee~~|SIRIUS<br>~~ee~~|| |**product designation**|Residual-current transformers|| |**product feature touchprotection**|Yes|| |**type of electrical connection at output**|screw-type terminals|| |**operating voltage rated value maximum**|690 V|| |**continuous currentperphase maximum**|225 A|| |**fault current at input rated value**|40 A|| |**surge voltage resistance rated value**|6 kV|| |**reference code according to IEC 81346-2**|B|| |**reference code according to DIN 40719 extended according**<br>**to IEC 204-2 according to IEC 750**<br>~~SC~~|T<br>~~SC~~|| |**reference code according to EN 61346-2**<br>~~SC~~|B<br>~~SC~~|| |**Connections/ Terminals**||| |**type of connectable conductor cross-sections**||| |● solid|1x(0.5 ... 2.5 mm²)|| |● finelystranded||| |— with core endprocessing|1x(0.5 ... 1.5 mm²)|| |● for AWG cables||| |— solid|1x(20 ... 13)|| |**Ambient conditions**<br>~~a~~||| |**ambient temperature**<br>~~a~~|~~a~~|| |● duringtransport|-25 ... +60 °C|| |● duringoperation|-25 ... +60 °C|| |● duringstorage<br>~~OC~~|-40 ... +85 °C<br>~~OC~~|| |**relative humidity during operation**<br>~~OC~~|95 %<br>~~OC~~|| |**installation altitude at height above sea level**<br>~~OC~~|2 000 m<br>~~OC~~|| |**Installation/ mounting/ dimensions**||| |**diameter of inlet opening**|80 mm|| |**width**|124.5 mm|| |**height**|64 mm|| |**depth**|130 mm|| |**mounting position**|standing, on horizontal mountingsurface|| |**fastening method**<br>~~Oe~~|screw fixing<br>~~Oe~~|| |**tightening torque with screw-type terminals**<br>~~Oe~~|0.5 ... 0.6 N·m<br>~~Oe~~|| |**tightening torque [lbf·in] with screw-type terminals**<br>~~Oe~~|4.4 ... 5.3 lbf·in<br>~~Oe~~|| |**Certificates/ approvals**||| |**General Product Approval**||**Test Certificates**| Subject to change without notice © Copyright Siemens 3UL23041A Page 1/3 5/29/2026 - Type Test Certific ates/Test Report =C€ e ~~R~~ ## **other** **Environment** ~~OO~~ Confirmation Confirmation Environmental Confirmations - ~~e~~ **Further information** ~~e~~ **Information on the packaging** https://support.industry.siemens.com/cs/ww/en/view/109813875 **Information for data generation and storage** https://support.industry.siemens.com/cs/ww/en/view/109995012 **Information- and Downloadcenter (Catalogs, Brochures,…)** https://www.siemens.com/ic10 **Industry Mall (Online ordering system)** https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3UL2304-1A **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3UL2304-1A **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3UL2304-1A **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3UL2304-1A&lang=en **==> picture [193 x 334] intentionally omitted <==** **----- Start of picture text -----**<br> 124,5<br>60<br>Co<br>80<br>130<br>6,2<br>64 50<br>**----- End of picture text -----**<br> Subject to change without notice © Copyright Siemens 3UL23041A Page 2/3 5/29/2026 **==> picture [456 x 339] intentionally omitted <==** **----- Start of picture text -----**<br> a ee<br>-B |<br>S2<br>|<br>|<br>S1<br>|<br>_ _ _ _ _ |<br>last modified: 10/22/2025<br>L1 L2 L3 N<br>**----- End of picture text -----**<br> Subject to change without notice © Copyright Siemens 3UL23041A Page 3/3 5/29/2026
Updated at June 4, 2026
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