| Note on application | Only for industrial use |
| Product type | Coupling relay |
| Product family | PSRclassic |
| Application | Safe switch off |
| Output fuse | max. 4 A |
| Control | 1-channel |
| Mechanical service life | 10x 106 cycles |
| Relay type | Electromechanical relay in accordance with IEC/EN 61810 |
| Overvoltage category | III |
| Degree of pollution | 2 |
| Recovery time | 500 ms |
| Maximum power dissipation for nominal condition | 2.36 W (UB = 26.4 V, US = 24 V, IS = 40 mA, IL² = 16 A, Rcontact = 0.075 Ω) |
| Nominal operating mode | 100% operating factor |
| Rated insulation voltage | 250 V AC |
| Rated surge voltage/insulation | Safe isolation, reinforced insulation 6.4 kV between 250 V load current paths and 24 V logic paths |
| Rated control circuit supply voltage US | 24 V DC -10 % ... +10 % |
| Power consumption at US | 960 mW |
| Rated control supply current IS | 40 mA |
| Typ. starting time with Us | < 70 ms (when controlled via A3 at US) |
| Typical release time | < 50 ms (on demand via A3 at Us) |
| Contact switching type | 1 enabling current path |
| Contact material | AgSnO2, gold-plated |
| Limiting continuous current | 4 A (Low demand) |
| Sq. Total current | 16 A2 (Low-demand, observe derating) |
| Switching capacity | min. 120 mW |
| Output fuse | 4 A gL/gG (for low-demand applications) |
| Connection method | Screw connection |
| Conductor cross section rigid | 0.2 mm² ... 2.5 mm² |
| Conductor cross section flexible | 0.2 mm² ... 2.5 mm² |
| Conductor cross-section AWG | 24 ... 12 |
| Stripping length | 7 mm |
| Screw thread | M3 |
| Tightening torque | 0.6 Nm |
| Width | 12.5 mm |
| Height | 99 mm |
| Depth | 114.5 mm |
| Color (Housing) | traffic grey B (RAL 7043) |
| Housing material | PA |
| Safety Integrity Level (SIL) | 3 |
| Degree of protection | IP20 |
| Min. degree of protection of inst. location | IP54 |
| Ambient temperature (operation) | -40 °C ... 70 °C (observe derating) |
| Ambient temperature (storage/transport) | -40 °C ... 85 °C |
| Maximum altitude | ≤ 2000 m (Above sea level) |
| Max. permissible humidity (storage/transport) | 75 % (on average, 85% infrequently, non-condensing) |
| Max. permissible relative humidity (operation) | 75 % (on average, 85% infrequently, non-condensing) |
| Shock | 15g |
| Vibration (operation) | 10 Hz ... 150 Hz, 2g |
| Mounting type | DIN rail mounting |
| Mounting position | vertical or horizontal |
| Inrush current | min. 10 mA |
| Filter time | 1 ms (in the event of voltage dips at Us) |
| Protective circuit | Serial protection against polarity reversal; Suppressor diode, 38.6 V/600 W (connections 3/4) |
| Designation | 3/4 |
| Status display | 1 x LED (green) |
| Output description | 3 N/O contacts in series, without delay, floating |
| Number of outputs | 1 (safety-related) |
| Switching frequency | 1 Hz |
| Identification | CE-compliant |
| Assembly note | See derating curve |
| Switching voltage | min. 12 V DC |
| Set comprises | 1272930 PSR-PE20-1NO-24DC-SC-SET60 |
