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2961121
General Purpose Relay, REL-MR Series, Power, Non Latching, SPDT, 24 VDC, 50 mA
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: PHOENIX CONTACT
- Product type: Power Relays
- Contact Configuration:SPDT; Coil Voltage:24VDC; Contact Current:50mA; Product Range:REL-MR Series; Relay Mounting:Through Hole; Coil Type:Non Latching; Contact Voltage VAC:30VAC; Relay T
- SVHC: No SVHC (04-Feb-2026)
- Coil Type: Non Latching
- Coil Voltage: 24VDC
- Product Range: REL-MR Series
- Relay Mounting: Through Hole
- Coil Resistance: 3.39kohm
- Contact Current: 50mA
- Relay Terminals: Solder
- Contact Material: Silver Tin Oxide
- Contact Voltage VAC: 30V
- Contact Voltage VDC: 36V
- Contact Configuration: SPDT
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 7.46 € |
| Current stock | 100+ |
| Lead time | 30 days |
Datasheet
## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 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 documentation. Our General Terms of Use for Downloads are valid. Plug-in miniature power relay, with multi-layer gold contact, 1 changeover contact, input voltage 24 V DC ## Your advantages - - - Safe isolation according to DIN EN 50178 between coil and contact - High degree of protection up to RT III depending on type (wash-proof) - Power contacts up to 6 A ## Commercial Data |Item number|2961121| |---|---| |Packing unit|10 pc| |Minimum order quantity|10 pc| |Sales Key|CK6| |Product Key|CK6195| |Catalog Page|Page 284 (C-5-2019)| |GTIN|4017918130879| |Weight per Piece (including packing)|6.92 g| |Weight per Piece (excluding packing)|6.525 g| |Customs tariff number|85364900| |Country of origin|CZ| Mar 19, 2023, 3:43 AM Page 1 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## Technical Data ## Product properties Product type Single relay Set comprises 2966265 PLC-RSC- 24DC/21AU 2966278 PLC-RSC- 24UC/21AU 2966126 PLC-RSC- 48DC/21AU 2966540 PLC-RSP- 24DC/21AU 2966553 PLC-RSP- 24UC/21AU 2966566 PLC-RSP- 48DC/21AU 2900306 PLC-RPT- 24DC/21AU 2900307 PLC-RPT- 24UC/21AU 2900308 PLC-RPT- 48DC/21AU 2900317 PLC-RPT- 12DC/21AU 2967374 PLC-RSP- 24DC/ 1AU/SEN 2900313 PLC-RPT- 24DC/ 1AU/SEN 2903368 RIF-0-RPT-24DC/21AU 2903372 RIF-0-RSC-24DC/21AU Operating mode 100% operating factor Mechanical service life 2x 10[7] cycles Insulation characteristics Overvoltage category III Pollution degree 3 ## Electrical properties Maximum power dissipation for nominal condition 0.17 W Test voltage (Winding/contact) 4 kV AC (50 Hz, 1 min., winding/contact) ## Input data ## Coil side |Coil side|| |---|---| |Nominal input voltage UN|24 V DC| |Input voltage range|14.4 V DC ... 66 V DC| |Input voltage range in reference to UN|see diagram| |Typical input current at UN|7 mA| |Typical response time|5 ms| |Typical release time|2.5 ms| |Coil resistance|3390 Ω ±10 % (at 20 °C)| ## Output data ## Switching Contact type Type of switch contact 1 changeover contact Single contact Mar 19, 2023, 3:43 AM Page 2 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 |Drive and function|monostable| |---|---| |Contact material|AgSnO, hard gold-plated| |Maximum switching voltage|30 V AC| ||36 V DC| |Minimum switching voltage|100 mV (at 10 mA)| |Limiting continuous current|50 mA| |Maximum inrush current|50 mA| |Min. switching current|1 mA (at 24 V)| |Interrupting rating (ohmic load) max.|1.2 W (at 24 V DC)| Switching: when the gold layer is destroyed Note layer is destroyyer is destroyer is destroyyed Contact material AgSnO Maximum switching voltage 250 V AC Minimum switching voltage 5 V (at 100 mA) Limiting continuous current 6 A Min. switching current 10 mA (at 12 V) Interrupting rating (ohmic load) max. 140 W (at 24 V DC) 20 W (at 48 V DC) 18 W (at 60 V DC) 23 W (at 110 V DC) 40 W (at 220 V DC) 1500 VA (for 250 V AC) Switching capacity 2 A (at 24 V, DC13) 0.2 A (at 110 V, DC13) 0.1 A (at 220 V, DC13) 3 A (at 24 V, AC15) 3 A (at 120 V, AC15) 3 A (at 230 V, AC15) ## the following values are applicable if a gold layer is destroyyer is destroyer is destroyyed ## Connection data Connection method Plug / solder connection ## Dimensions Dimensional drawing Width 5 mm Height 28 mm Depth 15 mm Mar 19, 2023, 3:43 AM Page 3 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## Environmental and real-life conditions |nvironmental and real-life conditions|| |---|---| |Ambient conditions|| |Degree of protection|RT III| |Ambient temperature (operation)|-40 °C ... 85 °C| |Ambient temperature (storage/transport)|-40 °C ... 85 °C| ## Approval data |pproval data|| |---|---| |Corrosive gas test|| |Identification|ISA-S71.04. G3 Harsh Group| ||EN 60068-2-60| ## Standards and regulations |Standards/regulations|IEC 60664| |---|---| ||EN 50178| ||EN 61810-1| ## Mounting |Assembly instructions|in rows with zero spacing| |---|---| |Mounting position|any| Mar 19, 2023, 3:43 AM Page 4 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## Drawings Drilling plan/solder pad geometry **==> picture [402 x 140] intentionally omitted <==** **----- Start of picture text -----**<br> 1 1,3 1,9<br>1,2<br>**----- End of picture text -----**<br> a = pitch division 1.25 mm and 1.27 mm **==> picture [412 x 237] intentionally omitted <==** **----- Start of picture text -----**<br> Dimensional drawing<br>28 5<br>15<br>3,5<br>**----- End of picture text -----**<br> Mar 19, 2023, 3:43 AM Page 5 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 **==> picture [39 x 10] intentionally omitted <==** **----- Start of picture text -----**<br> Diagram<br>**----- End of picture text -----**<br> **==> picture [404 x 286] intentionally omitted <==** Interrupting rating Circuit diagram **==> picture [302 x 150] intentionally omitted <==** **==> picture [275 x 11] intentionally omitted <==** **----- Start of picture text -----**<br> A2 A1 12 11 14<br>**----- End of picture text -----**<br> Mar 19, 2023, 3:43 AM Page 6 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## Approvals ||cUL Recognized<br>Approval ID: FILE E 172140|||| |---|---|---|---|---| |||||| ||UL Recognized<br>Approval ID: FILE E 172140|||| |||||| ||EAC<br>Approval ID: TR_TS_D_00573_c|||| |||||| ||UL Recognized<br>Approval ID: FILE E 172140|||| |||||| ||EAC<br>Approval ID: RU*C-DE.*08.B.00010|||| |||||| ||VDE Zeichengenehmigung<br>Approval ID: 40010212|||| ||Nominal Voltage UN|Nominal Current IN|Cross Section AWG|Cross Section mm2| |Reports with production|||-|-| |monitoring||||| |||||| ||VDE Zeichengenehmigung<br>Approval ID: 40032864|||| ||Nominal Voltage UN|Nominal Current IN|Cross Section AWG|Cross Section mm2| |Mark|approval||-|-| |certificate||||| |||||| ||PRS<br>Approval ID: TE/2109/880590/16|||| |||||| ||cUL Recognized<br>Approval ID: FILE E 172140|||| |||||| ||VDE Zeichengenehmigung<br>Approval ID: 40054426|||| Mar 19, 2023, 3:43 AM Page 7 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 cUL Recognized Approval ID: FILE E 172140 UL Recognized Approval ID: FILE E 172140 Mar 19, 2023, 3:43 AM Page 8 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## Classifications ## ECLASS |CLASS|| |---|---| |ECLASS-9.0|27371601| |ECLASS-10.0.1|27371601| |ECLASS-11.0|27371601| |ECLASS-12.0|27371601| |ECLASS-13.0|27371601| ## ETIM ||ETIM 8.0|EC001437| |---|---|---| ||NSPSC|| ||UNSPSC 21.0|39122300| ## UNSPSC Mar 19, 2023, 3:43 AM Page 9 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## Environmental Product Compliance China RoHS Environmentally friendly use period: unlimited = EFUP-e No hazardous substances above threshold values Mar 19, 2023, 3:43 AM Page 10 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## Accessories ## PLC-BPT- 24DC/21 - Relay base 2900445 https://www.phoenixcontact.com/in/products/2900445 6.2 mm PLC basic terminal block with Push-in connection, without relay or solidstate relay, for mounting on DIN rail NS 35/7,5, 1 changeover contact, input voltage 24 V DC ## PLC-BSC- 24DC/21 - Relay base 2966016 https://www.phoenixcontact.com/in/products/2966016 6.2 mm PLC basic terminal block with screw connection, without relay or solidstate relay, for mounting on DIN rail NS 35/7,5, 1 changeover contact, input voltage 24 V DC Mar 19, 2023, 3:43 AM Page 11 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## PLC-BPT- 24UC/21 - Relay base 2900446 https://www.phoenixcontact.com/in/products/2900446 6.2 mm PLC basic terminal block with Push-in connection, without relay or solidstate relay, for mounting on DIN rail NS 35/7,5, 1 changeover contact, input voltage 24 V AC/DC ## PLC-BSC- 24UC/21 - Relay base 2966029 https://www.phoenixcontact.com/in/products/2966029 6.2 mm PLC basic terminal block with screw connection, without relay or solidstate relay, for mounting on DIN rail NS 35/7,5, 1 changeover contact, input voltage 24 V AC/DC Mar 19, 2023, 3:43 AM Page 12 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## PLC-BPIT- 48DC/21 - Relay base 2900447 https://www.phoenixcontact.com/in/products/2900447 6.2 mm PLC basic terminal block with Push-in connection, without relay or solidstate relay, for mounting on DIN rail NS 35/7,5, 1 changeover contact, input voltage 48 V DC ## PLC-BSC- 48DC/21 - Relay base 2966090 https://www.phoenixcontact.com/in/products/2966090 6.2 mm PLC basic terminal block with screw connection, without relay or solidstate relay, for mounting on DIN rail NS 35/7,5, 1 changeover contact, input voltage 48 V DC Mar 19, 2023, 3:43 AM Page 13 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## PLC-BPT- 24DC/ 1/SEN - Relay base 2900262 https://www.phoenixcontact.com/in/products/2900262 6.2 mm PLC basic terminal block for input functions with push-in connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with sensor supply voltage distribution (BB), 1 N/O contact, input voltage 24 V DC ## PLC-BSC- 24DC/ 1/SEN - Relay base 2966061 https://www.phoenixcontact.com/in/products/2966061 6.2 mm PLC basic terminal block for input functions with screw connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with sensor supply voltage distribution (BB), 1 N/O contact, input voltage 24 V DC Mar 19, 2023, 3:43 AM Page 14 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## PLC-BPT- 24DC/ 1/ACT - Relay base 2900449 https://www.phoenixcontact.com/in/products/2900449 6.2 mm PLC basic terminal block for output functions with push-in connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with load return line connection (BB), 1 N/O contact, input voltage 24 V DC ## PLC-BSC- 24DC/ 1/ACT - Relay base 2966058 https://www.phoenixcontact.com/in/products/2966058 6.2 mm PLC basic terminal block for output functions with screw connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with load return line connection (BB), 1 N/O contact, input voltage 24 V DC Mar 19, 2023, 3:43 AM Page 15 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## PLC-BPT- 24UC/ 1/ACT - Relay base 2900450 https://www.phoenixcontact.com/in/products/2900450 6.2 mm PLC basic terminal block for output functions with push-in connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with load return line connection (BB), 1 N/O contact, input voltage 24 V AC/DC ## PLC-BSC- 24UC/ 1/ACT - Relay base 2982799 https://www.phoenixcontact.com/in/products/2982799 6.2 mm PLC basic terminal block for output functions with screw connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with load return line connection (BB), 1 N/O contact, input voltage 24 V AC/DC Mar 19, 2023, 3:43 AM Page 16 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 ## PLC-BSC- 24DC/21/SO46 - Relay base 2980458 https://www.phoenixcontact.com/in/products/2980458 6.2 mm PLC basic terminal block with protection against interference currents/voltages on the control side, with screw connection, without relay or solid-state relay, for mounting on DIN rail NS 35/7,5, with increased input current consumption, 1 changeover contact, input voltage 24 V DC ## RIF-0-BPT/21 - Relay base 2900958 https://www.phoenixcontact.com/in/products/2900958 Relay base RIF-0..., for miniature power relay with 1 changeover contact or solid-state relays of the same design, Push-in connection, for mounting on NS 35/7,5 Mar 19, 2023, 3:43 AM Page 17 (18) ## REL-MR- 24DC/21AU - Single relay 2961121 https://www.phoenixcontact.com/in/products/2961121 RIF-0-BSC/21 - Relay base 2900957 https://www.phoenixcontact.com/in/products/2900957 RIF-0... relay base, for miniature power relay with 1 changeover contact or identical solid-state relays, screw connection, for mounting on NS 35/7,5 Phoenix Contact 2023 © - all rights reserved https://www.phoenixcontact.com PHOENIX CONTACT (I) Pvt. Ltd. A-58/2, Okhla Industrial Area, Phase - II, New Delhi-110 020 +91.1275.71420 info@phoenixcontact.co.in Mar 19, 2023, 3:43 AM Page 18 (18)
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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