2903680
Power Relay, 4PDT, 110 VDC, 2 A, REL-IR4/LDP Series, Socket
- Manufacturer: PHOENIX CONTACT
- Product type: Power Relays
- SVHC: No SVHC (04-Feb-2026)
- Coil Type: -
- Coil Voltage: 110VDC
- Product Range: REL-IR4/LDP Series
- Relay Mounting: Socket
- Coil Resistance: -
- Contact Current: 2A
- Relay Terminals: Quick Connect
- Contact Material: Silver Nickel
- Contact Voltage VAC: 250V
- Contact Voltage VDC: 250V
- Contact Configuration: 4PDT
| Delivery and price | |
|---|---|
| Units per pack | 10 |
| Price | 9.0 € |
| Current stock | 10+ |
| Lead time | 30 days |
https://www.phoenixcontact.com/gb/products/2903680 ## Single relay - REL-IR4/LDP-110DC/4X21 - 2903680 Please be informed that the data shown in this PDF Document is generated from our Online Catalog. Please find the complete data in the user's documentation. Our General Terms of Use for Downloads are valid (http://phoenixcontact.com/download) Plug-in industrial relay with power contacts, 4 PDTs, test key, status LED, freewheeling diode, mechanical switch position indicator, polarity: A1+, A2–, coil voltage: 110 V DC ## Key Commercial Data |Key Commercial Data|| |---|---| |Packing unit<br>~~QO~~|10 pc<br>~~QO~~| |Minimum order quantity<br>~~QO~~|10 pc<br>~~QO~~| |GTIN<br>~~A~~|~~A~~| |GTIN<br>~~a~~|4046356758932<br>~~a~~| |Weight per Piece (excluding packing)<br>~~QO~~|34.060 g<br>~~QO~~| |Custom tariff number<br>~~Qe~~|85364900<br>~~Qe~~| |Country of origin<br>~~Qe~~|Poland<br>~~Qe~~| ## Technical data ## Dimensions |Width|21.2 mm| |---|---| |Height|27.5 mm| |Depth|35.6 mm| |Ambient conditions|| |Ambient temperature (operation)|-40 °C ... 70 °C| |Ambient temperature (storage/transport)|-40 °C ... 85 °C| |Degree of protection|RT I| ## Coil side |Nominal input voltage UN|110 V DC| |---|---| |Input voltage range in reference to UN|see diagram| |Typical input current at UN|8 mA| |Typical response time|13 ms| 12/30/2019 Page 1 / 9 https://www.phoenixcontact.com/gb/products/2903680 ## Single relay - REL-IR4/LDP-110DC/4X21 - 2903680 ## Technical data Coil side |Coil side|Coil side| |---|---| |Typical release time<br>14 ms<br>Protective circuit<br>Damping diode<br>Status display<br>Yellow LED<br>Power dissipation for nominal condition<br>0.88 W<br>~~SSS~~|| |Contact side|| |Contact type|4 PDTs| |Type of switch contact|Single contact| |Contact material|AgNi| |Maximum switching voltage|250 V AC/DC| |Minimum switching voltage|5 V (At 24 mA)| |Min. switching current|5 mA (at 24 V)| |Maximum inrush current|16 A (20 ms, N/O contact)| |Limiting continuous current|6 A| |Interrupting rating (ohmic load) max.|144 W (at 24 V DC)| ||124 W (at 48 V DC)| ||108 W (at 60 V DC)| ||52 W (at 110 V DC)| ||48 W (at 220 V DC)| ||1500 VA (for 250 V AC)| |Switching capacity min.|0.12 W| |Switching capacity|2 A (at 24 V, DC13)| ||0.22 A (at 120 V, DC13)| ||0.11 A (at 250 V, DC13)| ||1.5 A (at 24 V, AC15)| ||1.5 A (at 120 V, AC15)| ||1 A (at 240 V, AC15)| |Motor load according to UL 508|1/3 HP, 240 V AC| |General|| |Test voltage relay winding/relay contact|2.5 kVrms(50 Hz, 1 min.)| |Test voltage PDT/PDT|2 kVrms(50 Hz, 1 min.)| |Operating mode|100% operating factor| |Mechanical service life|approx. 2x 10<br>7cycles| |Service life, electrical|see diagram| |Mounting position|any| |Connection data|| |Connection method|Plug connection| |Standards and Regulations|| |Connection in acc. with standard<br>CSA<br>Standards/regulations<br>IEC 60664<br>~~—————~~|| 12/30/2019 Page 2 / 9 https://www.phoenixcontact.com/gb/products/2903680 ## Single relay - REL-IR4/LDP-110DC/4X21 - 2903680 ## Technical data Standards and Regulations ||IEC 61810| |---|---| |Rated insulation voltage|250 V AC| |Rated surge voltage|2.5 kV| |Insulation|Basic insulation| |Pollution degree|2| |Overvoltage category|II| ## Environmental Product Compliance |China RoHS|Environmentally Friendly Use Period = 50| |---|---| ||For details about hazardous substances go to tab “Downloads”,<br>Category “Manufacturer's declaration”| ## Drawings **==> picture [35 x 9] intentionally omitted <==** **----- Start of picture text -----**<br> Diagram<br>**----- End of picture text -----**<br> Operating voltage range 12/30/2019 Page 3 / 9 https://www.phoenixcontact.com/gb/products/2903680 ## Single relay - REL-IR4/LDP-110DC/4X21 - 2903680 **==> picture [35 x 9] intentionally omitted <==** **----- Start of picture text -----**<br> Diagram<br>**----- End of picture text -----**<br> Interrupting rating 12/30/2019 Page 4 / 9 https://www.phoenixcontact.com/gb/products/2903680 ## Single relay - REL-IR4/LDP-110DC/4X21 - 2903680 Diagram Electrical service life 12/30/2019 Page 5 / 9 https://www.phoenixcontact.com/gb/products/2903680 ## Single relay - REL-IR4/LDP-110DC/4X21 - 2903680 **==> picture [35 x 9] intentionally omitted <==** **----- Start of picture text -----**<br> Diagram<br>**----- End of picture text -----**<br> Service life reduction factor Circuit diagram 12/30/2019 Page 6 / 9 https://www.phoenixcontact.com/gb/products/2903680 ## Single relay - REL-IR4/LDP-110DC/4X21 - 2903680 ## Classifications |Classifications|Classifications| |---|---| |eCl@ss<br>eCl@ss 4.0<br>27371100<br>eCl@ss 4.1<br>27371100<br>eCl@ss 5.0<br>27371600<br>eCl@ss 5.1<br>27371600<br>eCl@ss 6.0<br>27371600<br>eCl@ss 7.0<br>27371601<br>eCl@ss 8.0<br>27371601<br>eCl@ss 9.0<br>27371601<br>~~===~~|| |ETIM<br>ETIM 2.0<br>EC001437<br>ETIM 3.0<br>EC001437<br>ETIM 4.0<br>EC001437<br>ETIM 5.0<br>EC001437<br>ETIM 6.0<br>EC001437<br>ETIM 7.0<br>EC001437<br>~~===~~|| |UNSPSC|| |UNSPSC 6.01|30211916| |UNSPSC 7.0901|39121515| |UNSPSC 11|39121515| |UNSPSC 12.01|39121515| |UNSPSC 13.2|39122334| |UNSPSC 18.0|39122334| |UNSPSC 19.0|39122334| |UNSPSC 20.0|39122334| |UNSPSC 21.0|39122334| ## Approvals ## Approvals ## Approvals CSA / UL Recognized / cUL Recognized / VDE Zeichengenehmigung / EAC / EAC / cULus Recognized Ex Approvals ## Approval details 12/30/2019 Page 7 / 9 https://www.phoenixcontact.com/gb/products/2903680 ## Single relay - REL-IR4/LDP-110DC/4X21 - 2903680 Approvals CSA http://www.csagroup.org/services-industries/product-listing/ 2554095 ~~oo~~ UL Recognized http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 172140 cUL Recognized http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 172140 ~~ee~~ http://www2.vde.com/de/Institut/Online-Service/ VDE Zeichengenehmigung 40040427 VDE-gepruefteProdukte/Seiten/Online-Suche.aspx ~~oo~~ EAC TR_TS_D_00573_c EAC TR_TS_S_00010_c ~~ee~~ cULus Recognized ~~oo~~ Accessories Additional products Relay base - RIF-2-BPT/4X21 - 2900934 RIF-2... relay base, for industrial relay with 2 or 4 PDTs, push-in connection, plug-in option for input/suppressor modules, for mounting on NS 35/7,5 12/30/2019 Page 8 / 9 https://www.phoenixcontact.com/gb/products/2903680 ## Single relay - REL-IR4/LDP-110DC/4X21 - 2903680 ## Accessories Relay base - RIF-2-BSC/4X21 - 2900932 RIF-2... relay base, for industrial relay with 2 or 4 changeover contacts, screw connection, plug-in option for input/ interference suppression modules, for mounting on NS 35/7,5 Phoenix Contact 2019 © - all rights reserved http://www.phoenixcontact.com 12/30/2019 Page 9 / 9
Updated at June 10, 2026
Phoenix Contact is a global leader in industrial connection technology, automation systems, and electronic interface solutions. With decades of engineering heritage originating in Germany, the company develops robust components designed to ensure reliable power, data, and signal transmission across demanding manufacturing and industrial environments. The cornerstone of the Phoenix Contact portfolio is its industry-leading selection of connection technologies. The range features an exceptional variety of terminal blocks, including pluggable headers and sockets, highly reliable wire-to-board solutions, and versatile DIN rail terminal blocks. These foundational connectivity components are supported by a comprehensive ecosystem of power distribution blocks, interface modules, marking systems, and accessories engineered for seamless control cabinet wiring. Beyond physical connectivity, Phoenix Contact provides critical components for advanced automation, control, and system protection. The wider offering encompasses a broad spectrum of process controllers, high-efficiency AC/DC converters, and a comprehensive suite of power, safety, and solid-state relays. From precision signal converters and electronic circuit breakers to fiber optic cable assemblies, Phoenix Contact equips engineers with the high-performance technologies required to build secure, highly efficient, and future-ready industrial systems.
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