REL-MR- 24DC/21-21AU/MS
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Single relay
2987985
Plug-in miniature relay, with multi-layer contact with hard gold coating, 2 changeover contacts, test button, mechanical switching position indicator, status LED, freewheeling diode, polarity A1+, A2-, input voltage 24 V DC
This product needs further products for operation.
Mandatory accessories
Product details
| Product type | Single relay |
| Mechanical service life | 5x 106 cycles |
| Data management status | |
| Date of last data management | 20.03.2025 |
| Service life electrical | see diagram |
| Maximum power dissipation for nominal condition | 0.43 W |
| Test voltage (Winding/contact) | 5 kV AC (50 Hz, 1 min., winding/contact) |
| Test voltage (Contact/contact) | 2.5 kV AC (50 Hz, 1 min., contact/contact) |
| Coil side | |
| Nominal input voltage UN | 24 V DC |
| Input voltage range | 19.2 V DC ... 52.8 V DC |
| Drive and function | monostable |
| Drive (polarity) | non-polarized |
| Typical input current at UN | 18 mA |
| Typical response time | 9 ms |
| Typical release time | 6 ms |
| Switching | |
| Contact switching type | 2 changeover contacts |
| Type of switch contact | Single contact |
| Contact material | AgNi, hard gold-plated |
| Maximum switching voltage | 30 V AC |
| 36 V DC | |
| Minimum switching voltage | 12 V (At 1 mA) |
| Limiting continuous current | 50 mA |
| Maximum inrush current | 50 mA |
| Min. switching current | 1 mA (at 12 V) |
| Switching capacity | 1.5 A (at 240 V, AC15) |
| Motor load according to UL 508 | 1/4 HP, 120 V AC (N/O contact) |
| 1/2 HP, 240 V AC (N/O contact) | |
| Switching: when the gold layer is destroyed | |
| Note | the following values are applicable if a gold layer is destroyed |
| Contact material | AgNi |
| Maximum switching voltage | 250 V AC/DC |
| Minimum switching voltage | 12 V (at 10 mA) |
| Limiting continuous current | 8 A |
| Maximum inrush current | 16 A (20 ms) |
| Min. switching current | 10 mA (at 12 V) |
| Interrupting rating (ohmic load) max. | 2000 VA (for 250 V AC) |
| Switching capacity | 1 A (at 24 V, DC13) |
| 1.5 A (at 24 V, AC15) | |
| 1.5 A (at 120 V, AC15) | |
| 1.5 A (at 240 V, AC15) | |
| Connection method | Plug / solder connection |
| Dimensional drawing |
|
| Width | 12.7 mm |
| Height | 29 mm |
| Depth | 25 mm |
| Ambient conditions | |
| Ambient temperature (operation) | -40 °C ... 70 °C |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
| Corrosive gas test | |
| Identification | ISA-S71.04. G3 Harsh Group |
| EN 60068-2-60 | |
| Standards/regulations | EN 61810-1 |
| VDE 0435-201 | |
| EN 50178 |
Your advantages
With detectable manual operation
DC types with integrated freewheeling diode
Integrated status LED
Mechanical switch position indicator