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2908777
Safety Relay, 24 VDC, DPDT, REL-SR Series, Through Hole, 6 A, PC Pin
⚠️ 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: Safety Relays
- Coil Voltage:24VDC; Contact Configuration:DPDT; Product Range:REL-SR Series; Relay Mounting:Through Hole; Contact Current:6A; Relay Terminals:Solder; Contact Voltage AC Nom:250V; Contac
- SVHC: No SVHC (04-Feb-2026)
- IP Rating: IP20
- Coil Voltage: 24VDC
- Product Range: REL-SR Series
- Relay Mounting: Through Hole
- Contact Current: 6A
- Relay Terminals: PC Pin
- Contact Material: Silver Nickel
- Approvals & Standards: EAC, UL
- Contact Configuration: DPDT
- Contact Voltage AC Nom: 250V
- Contact Voltage DC Nom: 250V
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 18.01 € |
| Current stock | 25+ |
| Lead time | 30 days |
Datasheet
## REL-SR- 24DC/2X21/FG - Safety relays 2908777 https://www.phoenixcontact.com/in/products/2908777 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. Safety relay with force-guided contacts in accordance with DIN EN 61810-3, contact switching type: 2 changeover contacts. The requirements for type A in accordance with DIN EN 61810-3 are satisfied if the circuit is designed as 1 N/O contact / 1 N/C contact. ## Commercial data |Item number|2908777| |---|---| |Packing unit|20 pc| |Minimum order quantity|20 pc| |Sales key|CK6| |Product key|CK69D5| |Catalog page|Page 339 (C-5-2019)| |GTIN|4055626338651| |Weight per piece (including packing)|19.45 g| |Weight per piece (excluding packing)|19.45 g| |Customs tariff number|85364900| |Country of origin|CZ| Oct 24, 2024, 3:56 AM Page 1 (10) ## REL-SR- 24DC/2X21/FG - Safety relays 2908777 https://www.phoenixcontact.com/in/products/2908777 ## Technical data ## Product properties |roduct properties|| |---|---| |Product type|Single relay| |Application|Forcibly guided contacts| |Operating mode|100% operating factor| |Mechanical service life|approx. 107cycles| |B10d|600000 Cycles (AC1; 250 V / 6 A; 1 NO)| ||900000 Cycles (AC1; 250 V / 3 A; 1 NO)| ||1800000 Cycles (AC1; 250 V / 1,5 A; 1 NO)| ||180000 Cycles (AC15; 250 V / 3 A; 1 NO)| ||560000 Cycles (AC15; 250 V / 2 A; 1 NO)| ||4600000 Cycles (AC15; 250 V / 0,75 A; 1 NO)| ||360000 Cycles (DC13; 24 V / 3 A; 1 NO)| ||740000 Cycles (DC13; 24 V / 1,5 A; 1 NO)| ||4200000 Cycles (DC13; 24 V / 0,75 A; 1 NO)| |Data management status|| |Date of last data management|14.08.2024| |Article revision|02| |Insulation characteristics: Air clearances and creepage distances between the power circuits|| |Insulation<br>Safe isolation, reinforced insulation|| |Overvoltage category<br>III|| |Pollution degree<br>2|| |Data management status|| |---|---| |Date of last data management|14.08.2024| |Article revision|02| |Insulation characteristics: Air clearances and creepage distances between the power circuits|| |Insulation|Safe isolation, reinforced insulation| |Overvoltage category|III| |Pollution degree|2| ## Electrical properties |ectrical properties|| |---|---| |Maximum power dissipation for nominal condition|0.7 W| |Air clearances and creepage distances between the power circuits|| |Rated insulation voltage|250 V AC| |Rated surge voltage|6 kV| ## Input data |put data|| |---|---| |Coil side|| |Nominal input voltage UN|24 V DC| |Input voltage range in reference to UN|see diagram| |Drive and function|monostable| |Drive (polarity)|non-polarized| |Typical input current at UN|29 mA| |Typical response time|10 ms| |Typical release time|4 ms| Output data Oct 24, 2024, 3:56 AM Page 2 (10) ## REL-SR- 24DC/2X21/FG - Safety relays 2908777 https://www.phoenixcontact.com/in/products/2908777 |Switching|| |---|---| |Contact switching type|2 changeover contacts, forcibly actuated| |Type of switch contact|Single contact| |Contact material|AgNi| |Maximum switching voltage|250 V AC/DC| |Minimum switching voltage|15 V| |Limiting continuous current|6 A| |Maximum inrush current|6 A| |Min. switching current|10 mA (5 V)| |Interrupting rating (ohmic load) max.|144 W (24 V DC)| ||288 W (48 V DC)| ||88 W (110 V DC)| ||110 W (220 V DC)| ||1500 VA (250 V AC)| |Switching capacity min.|0.24 W| |Switching capacity|2 A (24 V (DC13))| ||3 A (230 V (AC15))| |Motor load according to UL 508|10 LRA / 0,5 FLA| ## Connection data Connection method Plug / solder connection ## Dimensions |mensions|| |---|---| |Width|12.6 mm| |Height|29 mm| |Depth|25.5 mm| ## Environmental and real-life conditions |nvironmental and real-life conditions|| |---|---| |Ambient conditions|| |Degree of protection|IP20| |Ambient temperature (operation)|-25 °C ... 70 °C| |Ambient temperature (storage/transport)|-25 °C ... 70 °C| ## Approvals |pprovals|| |---|---| |Corrosive gas test|| |Identification|ISA-S71.04. G3 Harsh Group| ||EN 60068-2-60| ## Standards and regulations Air clearances and creepage distances between the power circuits |Standards/regulations|DIN EN 50178| |---|---| ||DIN EN 61810-3| ||IEC 60664-1| Oct 24, 2024, 3:56 AM Page 3 (10) ## REL-SR- 24DC/2X21/FG - Safety relays 2908777 https://www.phoenixcontact.com/in/products/2908777 ## Drawings **==> picture [408 x 235] intentionally omitted <==** **----- Start of picture text -----**<br> Diagram<br>100<br>80<br>60<br>A B<br>40<br>20<br>0<br>-40 -20 0 20 40 60 80 100<br> [°C]<br>HR [%]<br>**----- End of picture text -----**<br> Permissible humidity for operation and storage. The maximum permissible ambient temperature as specified in the data sheet must be observed. Area A: Ice buildup at ambient temperatures ≤ 0°C must be prevented Area B: Condensation at ambient temperatures > 0°C must be prevented On 30 full days that are naturally distributed across an entire year, a humidity level of 95% is permissible at an ambient temperature ≤ 25°C. Oct 24, 2024, 3:56 AM Page 4 (10) ## REL-SR- 24DC/2X21/FG - Safety relays 2908777 https://www.phoenixcontact.com/in/products/2908777 Diagram **==> picture [406 x 266] intentionally omitted <==** **----- Start of picture text -----**<br> 1,6<br>1,4<br>1,2<br>1 0,<br>0,8<br>0,6<br>-20 0 20 40 60 80<br>Ambient temperature [°C]<br>N<br>Coil voltage U/U<br>**----- End of picture text -----**<br> Operating voltage range Oct 24, 2024, 3:56 AM Page 5 (10) ## REL-SR- 24DC/2X21/FG - Safety relays 2908777 https://www.phoenixcontact.com/in/products/2908777 Circuit diagram **==> picture [406 x 347] intentionally omitted <==** **----- Start of picture text -----**<br> A1 12 14 22 24<br>A2 11 21<br>**----- End of picture text -----**<br> Oct 24, 2024, 3:56 AM Page 6 (10) ## REL-SR- 24DC/2X21/FG - Safety relays 2908777 https://www.phoenixcontact.com/in/products/2908777 **==> picture [408 x 301] intentionally omitted <==** **----- Start of picture text -----**<br> Diagram<br>20<br>10<br>5<br>2<br>1<br>0,5<br>0,2<br>0,1<br>10 20 30 40 50 100 200 300<br>Switching voltage [V]<br>AC, ohmic load<br>DC, ohmic load<br>Switching current [A]<br>**----- End of picture text -----**<br> Interrupting rating Oct 24, 2024, 3:56 AM Page 7 (10) ## REL-SR- 24DC/2X21/FG - Safety relays 2908777 https://www.phoenixcontact.com/in/products/2908777 ## Approvals To download certificates, visit the product detail page: https://www.phoenixcontact.com/in/products/2908777 cUL Recognized Approval ID: FILE E 228652 UL Recognized Approval ID: FILE E 228652 EAC Approval ID: RU*C-DE.*08.B.00010 cULus Recognized Oct 24, 2024, 3:56 AM Page 8 (10) ## REL-SR- 24DC/2X21/FG - Safety relays 2908777 https://www.phoenixcontact.com/in/products/2908777 ## Classifications ## ECLASS |CLASS|| |---|---| |ECLASS-11.0|27371601| |ECLASS-12.0|27371601| |ECLASS-13.0|27371601| ## ETIM ||ETIM 9.0|EC001437| |---|---|---| ||NSPSC|| ||UNSPSC 21.0|39122300| ## UNSPSC Oct 24, 2024, 3:56 AM Page 9 (10) ## REL-SR- 24DC/2X21/FG - Safety relays 2908777 https://www.phoenixcontact.com/in/products/2908777 ## Environmental product compliance EU RoHS Fulfills EU RoHS substance requirements Yes, No exemptions China RoHS Environment friendly use period (EFUP) EFUP-E No hazardous substances above the limits EU REACH SVHC REACH candidate substance (CAS No.) No substance above 0.1 wt% Phoenix Contact 2024 © - 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 Oct 24, 2024, 3:56 AM Page 10 (10)
Updated at April 29, 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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