# Plug-In Socket, 2 CO, 41.5 mm x 27 mm x 74 mm, PT Series Screw Terminal Relays

![Product image](https://novapart.co/image/farnell:3556063/)

**URL**: https://novapart.co/products/LZS:PT78720/plug-in-socket-2-co-415-mm-x-27-74-pt-series-screw
**SKU**: LZS:PT78720
**Manufacturer**: SIEMENS
**Category**: Automation & Process Control || Industrial Switches & Control Stations || Industrial Switch Accessories
**Price**: €6.7100
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Svhc | To Be Advised |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3556063/)

**LZS:PT78720** 

## **Data sheet** 

plug-in socket for PT relay, 2 changeover contacts, screw terminal 

||plug-in socket for PT relay, 2 changeover contacts, screw terminal|
|---|---|
|**product brand name**|SIRIUS|
|**product type designation**|LZS|
|**General technical data**<br>~~|~~||
|**display version LED**<br>~~|~~|No<br>~~|~~|
|**switching behavior**|monostable|
|**reference code according to IEC 81346-2**|U|
|**Substance Prohibitance(day/month/year)**|05/01/2012|
|**Net Weight**|0.046 kg|
|**Switching Function**<br>~~|~~||
|**design of the switching function**<br>~~|~~|changeover switch<br>~~|~~|
|**Mechanical data**<br>~~|~~||
|**product componentplug-in socket**<br>~~|~~|Yes<br>~~|~~|
|**design of the snap-on socket base**|Standard socket|
|**design of the relay operating mechanism**|poled|
|**Auxiliary circuit**<br>~~|~~||
|**number of NC contacts for auxiliary contacts**<br>~~|~~|0<br>~~|~~|
|**number of NO contacts for auxiliary contacts**|0|
|number of CO contacts for auxiliarycontacts|0|
|**Connections/ Terminals**<br>~~|~~||
|**product function removable terminal**<br>~~|~~|No<br>~~|~~|
|**type of electrical connection**|screw terminal|
|**type of connectable conductor cross-sections**||
|● solid|1x(1,0 ... 2,5), 2x 1,0, 2x 1,5, 2x 2,5|
|● finelystranded with core endprocessing|1x(1.0 ... 1.5), 2x 1.0, 2x 1.5|
|● for AWG cables solid|1x(18 ... 14), 2x 18, 2x 16, 2x 14|
|**connectable conductor cross-section**||
|● solid|1 ... 2.5 mm²|
|● finelystranded with core endprocessing|1 ... 1.5 mm²|
|**AWG number as coded connectable conductor cross**<br>**section**||
|● solid|18 ... 14|
|tighteningtorque with screw-type terminals|0.5 ... 0.7 N·m|
|**Installation/ mounting/ dimensions**<br>~~|~~||
|**mounting position**<br>~~|~~|any<br>~~|~~|
|**fastening method**|snap-on mounting|
|**height**|74 mm|
|**width**|27 mm|
|**depth**|41.5 mm|
|**Ambient conditions**<br>~~ee~~||



Subject to change without notice © Copyright Siemens 

## **ambient temperature** 

● during operation -40 ... +70 °C ● during storage -25 ... +70 °C ● during transport -25 ... +70 °C ~~a~~ **Approvals Certificates Environment General Product Approval Maritime application** Environmental Confirmations ~~—~~ || a? **other** Confirmation Confirmation 

~~P~~ **Further information** ~~s~~ **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=LZS:PT78720 **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=LZS:PT78720 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/LZS:PT78720 

**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=LZS:PT78720&lang=en 

LZS:PT78720 Page 2/4 

Subject to change without notice © Copyright Siemens 

5/28/2026 

LZS:PT78720 Page 3/4 

Subject to change without notice © Copyright Siemens 

5/28/2026 

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LZS:PT78720 Page 4/4 

Subject to change without notice © Copyright Siemens 

5/28/2026 



## Links

- [View this product on Novapart](https://novapart.co/products/LZS:PT78720/plug-in-socket-2-co-415-mm-x-27-74-pt-series-screw)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/siemens/lzs-pt78720/control-gear-switch-gear-accessory/dp/3556063)
---

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