Image not available
Illustrative purposes only
LZS:RT78725
Plug-In Socket, 42.3 mm x 15.5 mm x 78 mm, RT Series Plug-In Screw Terminal Socket Relays
⚠️ 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: Industrial Switch Accessories
- SVHC: To Be Advised
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 8.04 € |
| Current stock | 10+ |
| Lead time | 30 days |
**LZS:RT78725** ## **Data sheet** plug-in socket for RT relay standard plug-in socket screw terminal ||plug-in socket for RT relay standard plug-in socket screw terminal| |---|---| |**product brand name**|SIRIUS| |**product type designation**|LZS| |**General technical data**<br>~~|~~|| |**display version LED**<br>~~|~~|No<br>~~|~~| |**reference code according to IEC 81346-2**|U| |**Substance Prohibitance(Date)**|05/01/2012| |**Net Weight**|0.037 kg| |**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**|78 mm| |**width**|15.5 mm| |**depth**|42.3 mm| |**required spacing**|| |● with side-by-side mounting|| |— forwards|0 mm| |— backwards|0 mm| LZS:RT78725 Page 1/5 Subject to change without notice © Copyright Siemens 5/12/2026 — upwards 0 mm — downwards 0 mm — at the side 0 mm ● for grounded parts — forwards 0 mm — backwards 0 mm — upwards 0 mm — at the side 0 mm — downwards 0 mm ● for live parts — forwards 0 mm — backwards 0 mm — upwards 0 mm — downwards 0 mm — at the side 0 mm **Ambient conditions** ~~|~~ **ambient temperature** ● during operation -40 ... +70 °C ● during storage -20 ... +70 °C ● during transport -20 ... +70 °C ~~pT~~ **Approvals Certificates Environment General Product Approval other** Environmental ConConfirmation firmations ~~or~~ ## **other** Confirmation **Further information** ~~OO—C™SCSC“‘CC;CéiéCs~~ **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:RT78725 **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=LZS:RT78725 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/LZS:RT78725 **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:RT78725&lang=en LZS:RT78725 Page 2/5 Subject to change without notice © Copyright Siemens 5/12/2026 **==> picture [511 x 360] intentionally omitted <==** LZS:RT78725 Page 3/5 Subject to change without notice © Copyright Siemens 5/12/2026 LZS:RT78725 Page 4/5 Subject to change without notice © Copyright Siemens 5/12/2026 **==> picture [390 x 333] intentionally omitted <==** **----- Start of picture text -----**<br> -U<br>last modified: 10/22/2025<br>A1 11 21<br>A2 12 14 22 24<br>**----- End of picture text -----**<br> LZS:RT78725 Page 5/5 Subject to change without notice © Copyright Siemens 5/12/2026
Updated at June 5, 2026
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 410,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →