During technical comparisons, REL-MR-120AC-21HC appears alongside Phoenix SMPS, 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-MR-120AC/21HC Single Relay
The Phoenix REL-MR-120AC/21HC Single Relay (Part No: 2961419 ) offers a 120 V ACnominal input voltage UN, 93.6 V AC ... 186 V AC input voltage range, 250 V AC/DC switching voltage, Plug / solder 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-MR-120AC/21HC |
Phoenix REL-MR-120AC/21HC Single Relay β Technical Specifications
| Specification | Value |
|---|---|
| Product type | Single relay |
| Mechanical service life | 1x 107 cycles |
| Insulation | - |
| Overvoltage category | III |
| Pollution degree | 3 |
| Service life electrical | see diagram |
| Maximum power dissipation for nominal condition | 0.84 W |
| Test voltage (Winding/contact) | 5 kV AC (50 Hz, 1 min., winding/contact) |
| Test voltage (Changeover contact/changeover contact) | - |
| Rated insulation voltage | - |
| Rated surge voltage | - |
| Nominal input voltage UN | 120 V AC |
| Input voltage range | 93.6 V AC ... 186 V AC |
| Drive and function | monostable |
| Drive (polarity) | non-polarized |
| Typical input current at UN | 7 mA (50 Hz) |
| Typical response time | - |
| Coil voltage | - |
| Status display | - |
| Contact switching type | 1 changeover contact |
| Type of switch contact | Single contact |
| Contact material | AgNi |
| Maximum switching voltage | 250 V AC/DC |
| Minimum switching voltage | 12 V (at 10 mA) |
| Limiting continuous current | 16 A |
| Maximum inrush current | 25 A (20 ms) |
| Min. switching current | 10 mA (at 12 V) |
| Interrupting rating (ohmic load) max. | 384 W (at 24 V DC) |
| Connection method | Plug / solder connection |
| Width | 12.7 mm |
| Height | 29 mm |
| Depth | 15.7 mm |
| Degree of protection | RT II |
| Degree of protection (Installation location) | - |
| Ambient temperature (operation) | -40 Β°C ... 85 Β°C |
| Ambient temperature (storage/transport) | -40 Β°C ... 85 Β°C |
| Standards/regulations | IEC 60664 |
| Mounting type | - |
| Mounting position | any |
| Mains frequency | 50/60 Hz |
| Typical release time range | 2 ms ... 9 ms (depending on phase relation) |
| Coil resistance | 8100 Ξ© Β±15 % (at 20 Β°C) |
| Switching capacity | 2 A (at 24 V, DC13) |
| Motor load according to UL 508 | 1/2 HP, 120 V AC (N/O contact) |
| 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) | - |
Phoenix Contact REL-MR-120AC/21HC (2961419) is an advanced 120VAC Miniature Power Relay engineered for high-performance signal switching tasks in factory automation. Designed as a Single Relay, this compact model supports a nominal input voltage of 120 V AC and an input operating range of 93.6 V AC to 186 V AC. Its internal coil has a resistance of 8100 Ξ© Β±15% and a low input current requirement of just 7 mA, optimizing energy efficiency while ensuring high responsiveness.
The REL-MR-120AC/21HC offers a mechanical service life of 10 million cycles and can manage maximum switching voltages of 250 V AC/DC with a continuous load of 16 A. It uses robust AgNi contact material and a monostable, non-polarized coil drive system for precise switching. With RT II protection, plug/solder connection terminals, and operation capability from -40 Β°C to 85 Β°C, it meets IEC 60664 standards for safety and endurance. For other reliable options, view the Phoenix Relay Series or more from the Phoenix Contact brand.
The Phoenix Contact REL-MR-120AC/21HC is widely used in control cabinets for interfacing AC loads with PLC systems. Its ability to handle both resistive and inductive loads up to 16 A makes it suitable for relay-based logic switching, HVAC contactors, alarm circuits, and machine interlocks. Maintenance engineers prefer this Single Relay because of its fast switching speed, compact 12.7 mm width, and long operational life.
