During technical comparisons, REL-PR1-24DC-1-MB appears alongside SMPS Phoenix, Phoenixcontact Rel Ir Bl L 230Ac 4X21 and Phoenixcontact Phoenix Contact Industrial Ethernet Switches so engineers assess signal types, ingress protection, and ambient tolerances accurately.
Phoenix REL-PR1-24DC/1/MB Single Relay
The Phoenix REL-PR1-24DC/1/MB Single Relay (Part No: 2908040 ) offers a 24 V DCnominal input voltage UN, 20.4 V DC ... 26.4 V DC input voltage range, 440 V AC switching voltage, Plug-in connection method. Manufactured by Phoenix under the Phoenix Single Relay category, this model belongs to the Phoenix REL Series.

| Brand | Phoenix Contact |
| Product Type | Single Relay |
| Model Number | REL-PR1-24DC/1/MB |
Phoenix REL-PR1-24DC/1/MB Single Relay – Technical Specifications
| Specification | Value |
|---|---|
| Product type | Single relay |
| Mechanical service life | approx. 2x 107 cycles |
| Insulation | - |
| Overvoltage category | III |
| Pollution degree | 3 |
| Service life electrical | see diagram |
| Maximum power dissipation for nominal condition | 1.68 W |
| Test voltage (Winding/contact) | 2.5 kV (50 Hz, 1 min., winding/contact) |
| Test voltage (Changeover contact/changeover contact) | - |
| Rated insulation voltage | - |
| Rated surge voltage | 4 kV |
| Nominal input voltage UN | 24 V DC |
| Input voltage range | 20.4 V DC ... 26.4 V DC |
| Drive and function | monostable |
| Drive (polarity) | non-polarized |
| Typical input current at UN | 70 mA |
| Typical response time | 15 ms |
| Coil voltage | - |
| Status display | - |
| Contact switching type | 1 N/O contact |
| Type of switch contact | Single contact |
| Contact material | AgNi |
| Maximum switching voltage | 440 V AC |
| Minimum switching voltage | 5 V (At 24 mA) |
| Limiting continuous current | 16 A |
| Maximum inrush current | 50 A (20 ms) |
| Min. switching current | 5 mA (at 24 V) |
| Interrupting rating (ohmic load) max. | 384 W (at 24 V DC) |
| Connection method | Plug-in connection |
| Width | 38.6 mm |
| Height | 36.1 mm |
| Depth | 45.5 mm |
| Degree of protection | RT I |
| Degree of protection (Installation location) | - |
| Ambient temperature (operation) | -40 °C ... 70 °C |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
| Standards/regulations | IEC 60664 |
| Mounting type | - |
| Mounting position | any |
| Mains frequency | - |
| Typical release time range | - |
| Coil resistance | - |
| Switching capacity | 1 A (220 V, DC13) |
| Motor load according to UL 508 | - |
| Input power dissipation for UN | - |
| 3-phase motor load | - |
| Product family | - |
| Relay type | - |
| Test voltage () | - |
| Degree of protection (Relay) | - |
| Inrush current, minimum | - |
| Non-operate voltage | - |
| Safe operate voltage | - |
| Test voltage (N/O contact / N/O contact) | - |
The Phoenix Contact REL-PR1-24DC/1/MB (Part No: 2908040) is a rugged 1 N/O Contact, Blowout Magnet Relay that ensures reliable switching for high-voltage DC applications. This Single Relay is designed to operate at a nominal input voltage of 24 V DC and supports a wide voltage range of 20.4 V DC to 26.4 V DC, with a typical input current of 70 mA. Its construction includes AgNi contact material and a mechanical service life of approx. 2×10⁷ cycles, making it a long-lasting solution for repetitive switching needs.
With a maximum switching voltage of 440 V AC and a maximum inrush current of 50 A (20 ms), the Phoenix Contact REL-PR1-24DC/1/MB (Part No: 2908040) handles demanding loads with ease. It also supports a limiting continuous current of 16 A and an interrupting rating of 384 W at 24 V DC. This Single Relay is built to meet IEC 60664 insulation standards and is protected to RT I, withstanding ambient temperatures from -40°C to +70°C. To more at the Phoenix Relay page or visit the Phoenix Contact brand page.
Thanks to its compact size and plug-in connection method, the REL-PR1-24DC/1/MB fits easily into DIN-rail mounted relay racks and is serviceable with minimal downtime. Field technicians trust it for its proven endurance, and OEMs favor it for designing safe and compact electrical systems. For engineering students and maintenance professionals, this Single Relay provides a practical example of advanced switching design with real-world benefits. If you're looking for a durable and trusted 1 N/O Contact, Blowout Magnet Relay, Phoenix Contact REL-PR1-24DC/1/MB is a smart choice.







