
Optocoupler module; 2-port; Nominal input voltage: 24 VDC; Output voltage range: 3 … 31.2 VDC; Limiting continuous current: 3 A; 2-wire connection; Yellow status indicator; Module width: 6 mm
Basic relay; Nominal input voltage: 12 VDC; 1 changeover contact; Limiting continuous current: 6 A; with gold contacts; Module width: 5 mm
Basic relay; Nominal input voltage: 12 VDC; 1 changeover contact; Limiting continuous current: 6 A; with gold contacts; Module width: 5 mm 857-151
| Note | To prevent damaging the gold layer, 30 V switching voltages and 50 mA currents must not be exceeded. Higher switching power eventually evaporates the gold layer. The resulting deposits in the housing may reduce service life., To protect the relay coils and contacts, inductive loads must be dampened with an effective protection circuit. |
| Nominal input voltage U<sub>N</sub> | 12 VDC |
| Number of changeover/switchover contacts | 1 |
| Contact material (relay) | AgNi + Au |
| Limiting continuous current | 6 A |
| Inrush current (resistive) max. | (AC) 20 A / 0.02 s |
| Switching Voltage, Max. | 250 VAC |
| Switching power (resistive) max. | AC 1500 VA; DC (see load limit curve) |
| Switching capacity | AC-15: 3 A / 250 VAC; DC-13: 2 A / 24 VDC |
| Recommended minimum load | 1 V / 1 mA / 1 mW |
| Pull-in time (typ.) | 8 ms |
| Drop-out time (typ.) | 4 ms |
| Bounce time (typ.) | 3.5 ms |
| Electrical life (NO; resistive load; 23 °C) | 50 x 10³ switching operations |
| Mechanical life | 5 x 10⁶ switching operations |
| Switching frequency with/without load (max.) | 6 min-1 / 180 min-1 |
| Dielectric strength (control/load circuit) (AC, 1 min) | 4 kVrms |
| Dielectric strength (open contact) (AC, 1 min) | 1 kVrms |
| Protection type | IP20 |
| Width | 5 mm / 0.197 inches |
| Height from the surface | 15 mm / 0.591 inches |
| Depth | 28 mm / 1.09 inches |
| Mounting type | Pluggable module |
| Note (material data) | Information on material specifications can be found here |
| Insulation material (main housing) | Polyamide (PA66) |
| Flammability class per UL94 | V0 |
| Weight | 5.7 g |
| Ambient temperature (operation at U<sub>N</sub>) | -40 … +85 °C |
| Ambient temperature (storage) | -40 … +85 °C |
| Relative humidity | 5 … 85 % (no condensation permissible) |
| Operating altitude (max.) | 2000 m |
| Standards/specifications | EN 61810-1, EN 61373, VDE, UR |
| PU (SPU) | 20 pcs |
| Packaging type | box |
| Country of origin | DE |
| GTIN | 4055143693257 |
| Customs tariff number | 85364900990 |
| UNSPSC | 39122334 |
| eCl@ss 10.0 | 27-37-16-01 |
| eCl@ss 9.0 | 27-37-16-01 |
| ETIM 9.0 | EC001437 |
| ETIM 10.0 | EC001437 |
| ECCN | NO US CLASSIFICATION |
| RoHS Compliance Status | Compliant,No Exemption |
857-151 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Yes — mention it when you request a quote for 857-151 and we'll include express shipping options in our reply.
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 857-151, subject to availability and destination.

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