Maintenance teams planning replacements for REL-IR-BL-L-110DC-4X21 frequently review SMPS Phoenix, Phoenixcontact Rel Ir Bl L 230Ac 4X21 and Phoenixcontact Phoenix Contact Industrial Ethernet Switches to prevent downtime, checking availability and compatibility with existing systems.
Phoenix REL-IR-BL/L-110DC/4X21 Single Relay
The Phoenix REL-IR-BL/L-110DC/4X21 Single Relay (Part No: 1109560 ) offers a 110 V DCnominal input voltage UN, 88 V DC ... 214.5 V DC (20 °C) input voltage range, 250 V AC/DC 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-IR-BL/L-110DC/4X21 |
Phoenix REL-IR-BL/L-110DC/4X21 Single Relay – Technical Specifications
| Specification | Value |
|---|---|
| Product type | Single relay |
| Mechanical service life | 3x 107 cycles |
| Insulation | Basic insulation |
| Overvoltage category | III |
| Pollution degree | 2 |
| Service life electrical | see diagram |
| Maximum power dissipation for nominal condition | 0.85 W |
| Test voltage (Winding/contact) | 2.5 kVrms (50 Hz, 1 min., winding/contact) |
| Test voltage (Changeover contact/changeover contact) | 2 kVrms (50 Hz, 1 min., changeover contact/changeover contact) |
| Rated insulation voltage | 250 V AC |
| Rated surge voltage | 5 kV |
| Nominal input voltage UN | 110 V DC |
| Input voltage range | 88 V DC ... 214.5 V DC (20 °C) |
| Drive and function | monostable |
| Drive (polarity) | polarized |
| Typical input current at UN | 6.9 mA |
| Typical response time | 10 ms |
| Coil voltage | 110 V DC |
| Status display | LED (yellow) |
| Contact switching type | 4 changeover contacts |
| Type of switch contact | Single contact |
| Contact material | AgNi |
| Maximum switching voltage | 250 V AC/DC |
| Minimum switching voltage | 12 V (10 mA) |
| Limiting continuous current | 6 A |
| Maximum inrush current | 12 A (20 ms, N/O contacts) |
| Min. switching current | 10 mA (12 V) |
| Interrupting rating (ohmic load) max. | 144 W (24 V DC) |
| Connection method | Plug-in connection |
| Width | 22.5 mm |
| Height | 28 mm |
| Depth | 35.5 mm |
| Degree of protection | RT II |
| Degree of protection (Installation location) | ≥ IP54 (Installation location) |
| Ambient temperature (operation) | -40 °C ... 70 °C |
| Ambient temperature (storage/transport) | -40 °C ... 70 °C |
| Standards/regulations | EN 61810-1 |
| Mounting type | Plug-in mounting |
| Mounting position | any |
| Mains frequency | - |
| Typical release time range | - |
| Coil resistance | 16.1 kΩ ±12 % |
| Switching capacity | - |
| 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) | - |
Built to endure demanding control operations, the Phoenix Contact REL-IR-BL/L-110DC/4X21 relay offers a nominal coil voltage of 110 V DC, supporting a wide operating range between 88 V to 214.5 V DC. With a typical input current of 6.9 mA and a response time of just 10 ms, this Single Relay ensures energy efficiency and rapid switching in automated systems. The model features 4 changeover contacts made of AgNi (Silver-Nickel) for enhanced conductivity and contact durability.
Rated for up to 250 V AC/DC switching voltage and a 6 A continuous current load, the REL-IR-BL/L-110DC/4X21 is engineered with a robust plug-in connection and meets EN 61810-1 industrial relay standards. The part number 1109560 is commonly used by control panel builders and electrical designers seeking consistent performance in industrial automation circuits. With a mechanical life of 30 million cycles and protection level RT II, this relay performs reliably even in harsh temperature conditions from -40°C to +70°C.
Whether used in logic control, machine automation, or energy management systems, the Phoenix Contact REL-IR-BL/L-110DC/4X21 offers precise, stable switching performance and trusted build quality. The more options in the Phoenix Relay series or learn about the Phoenix Contact brand to find compatible industrial control solutions.
This relay is also a great learning component for engineering students working with relay interfacing circuits and control simulations. With real-world specifications and industrial-grade design, the Phoenix Contact REL-IR-BL/L-110DC/4X21 provides an ideal mix of educational value and real-use application reliability.
