Wago - 857-303

Plug-in relay assembly with socket base and ejector + yellow LED - WAGO (857 series) - single-pole / 1-pole (1P) - control voltage 10.2-14.4Vdc (12Vdc nom.; 0.85...1.2 x Uc) - 1C/O / SPDT (Single Pole Double Throw) contact - Electromechanical design - Rated current 6A (continuous) / 3A (250Vac; AC-15) / 2A (24Vdc; DC-13) - with Push-in CAGE CLAMP connections - DIN-35 rail mounting (6mm width) - IP20 - material Silver-Tin (AgSnO) contacts - equivalent to 857303

Specifications

• Primary brand: WAGO
• Functions: Plug-in relay assembly
• Design: socket base and ejector|yellow LED|Electromechanical design|10V / 10mA / 24V / 1mA recommended minimum switching load
• Poles: single-pole / 1-pole (1P)
• Temperature: Processing temperature -25°C...+50°C
• Rated current: 6A (continuous)|3A (250Vac; AC-15)|2A (24Vdc; DC-13)|20A (20ms) AC inrush maximum current
• Rated operating voltage (Ue): 300V
• Rated voltage (AC): 250Vac max. (switching voltage)
• Rated impulse voltage (Uimp): 4kV
• Connection type: Push-in CAGE CLAMP connections
• Control Voltage (DC): 10.2-14.4Vdc (12Vdc nom.; 0.85...1.2 x Uc)
• Mounting mode: DIN-35 rail
• Response time: (OFF=>ON / contacts closing) 8ms / 0.008s|(ON=>OFF / contacts opening) 8ms / 0.008s
• Contacts type: 1C/O / SPDT (Single Pole Double Throw) contact
• Dimensions: H94mm x W6mm x D81mm|6mm width
• Material: Silver-Tin (AgSnO) contacts|Polyamide (PA) 66 housing
• Ambient air temperature for operation: -40°C...+60°C
• Ambient air temperature for storage: -40°C...+70°C
• Humidity: 5-85% relative humidity (RH; non-condensing)
• Electrical durability (with load): 50 000operations
• Mechanical durability (at no load): 5 000 000operations
• Customs Tariff Number: 85364900990
• ETIM code: EC001437
• GTIN code: 4055143135207
• eClass code: 27-37-16-01
• Order code / Manufacturer SKU: 857-303
• Manufacturer product status: Commercialized
• Equivalent to: 857303
• EAN code: 4055143135207
• Compliant with standard(s): Safety and protection|- Overvoltage category -- III|Safety information -- Adjacent devices of the same type are devices of the same design (series) that are arranged next to one another on the DIN-rail with the same orientation.|An end stop must be fitted to devices of other types for compliance with the reinforced insulation requirements.|ATEX|EN 61010-2-201|EN 61373|EN 61810-1|IECEx|UL 508|General approvals|- EAC - GZO Almaty Standart - TP TC 004/2011 - certificate EAC CoC 03078|- UL - Underwriters Laboratories Inc. (ORDINARY LOCATIONS) - UL 508 - certificate E175199 Sec.4|Declarations of conformity and manufacturer's declarations|- EU-Declaration of Conformity - WAGO GmbH & Co. KG|- UK-Declaration of Conformity - WAGO GmbH & Co. KG|Approvals for hazardous areas|- ATEX - DEKRA EXAM GmbH - EN 60079-0 - certificate BVS_14_ATEX_E_091_X (II 3G Ex ec nC IIC T4 Gc; II 3G Ex ec IIC T4 Gc)|- CCC - CNEX - CNCA-C23-01 - certificate 2020312304000757 (Ex ec nC IIC T4 Gc)|- IECEx - DEKRA EXAM GmbH - IEC 60079-0 - certificate IECEX_BVS_14.0079X_Issue_3 (Ex ec nC IIC T4 Gc; Ex ec IIC T4 Gc)|- UKEx - WAGO GmbH & Co. KG - EN 60079-0 - certificate UKCA_WAGO22UKEX002X_ec nC|- UL - Underwriters Laboratories Inc. (HAZARDOUS LOCATIONS) - UL 121201 - certificate E198726|RoHS compliant with exemption (7(a))|material group I|V-0 flammability rating
• Location of origin: China
• Degree of pollution: 2
• Level 1 category: Automation components
• Level 2 category: Control components
• Level 3 category: Control relays
• Product title: Plug-in relay assembly - WAGO

Basic relay

• WAGO Basic Relay: 857-150

Commercial data

• Country of origin: CN
• Customs tariff number: 85364900990
• ECCN: NO US CLASSIFICATION
• eCl@ss 10.0: 27-37-16-01
• eCl@ss 9.0: 27-37-16-01
• ETIM 8.0: EC001437
• ETIM 9.0: EC001437
• GTIN: 4055143135207
• Packaging type: box
• Product Group: 6 (INTERFACE ELECTRONIC)
• PU (SPU): 25 (1) pcs

Connection data

• Connection technology: Push-in CAGE CLAMP^®
• Fine-stranded conductor: 0.34 … 2.5 mm² / 22 … 14 AWG
• Fine-stranded conductor; with insulated ferrule: 0.34 … 1.5 mm² / 22 … 16 AWG
• Solid conductor: 0.34 … 2.5 mm² / 22 … 14 AWG
• Strip length: 9 … 10 mm / 0.35 … 0.39 inches

Environmental Product Compliance

• CAS-No.: 7439-92-1|79-94-7
• REACH Candidate List Substance: 2,2',6,6'-tetrabromo-4,4'-isopropylidenediphenol|Lead
• RoHS Compliance Status: Compliant,With Exemption
• RoHS Exemption: 7(a)
• SCIP notification number (Austria): 033fc88e-52f8-4f79-a6c4-56de63e99e6d
• SCIP notification number (Belgium): 31f958a2-fad3-48a6-ac27-8a246e119b95
• SCIP notification number (Bulgaria): 0d9cd6fe-3d69-41b5-b2b2-ceb8e7fe478f
• SCIP notification number (Czech Republic): aa371129-663a-48b7-962c-9a8e5711f6c2
• SCIP notification number (Denmark): 27708341-5880-4a82-980d-cd1a351a91d0
• SCIP notification number (Finland): 14bbe803-88c7-40c5-8445-79c45eb0d99a
• SCIP notification number (France): 7e6e14da-055d-4c93-a9b7-a8cd6b159185
• SCIP notification number (Germany): d999b37c-9c7e-4da3-b6a8-db64ad586cea
• SCIP notification number (Hungary): 71d8385c-1974-438c-91f9-8405e8d5826c
• SCIP notification number (Italy): c6bcbd8f-023b-413f-9544-fb93425ace59
• SCIP notification number (Netherlands): 6ae04d85-77d0-4139-b2b0-eacb90ffb35c
• SCIP notification number (Poland): 30e70e5d-41d9-45c4-8f1a-408e3932735f
• SCIP notification number (Romania): 5a299f98-bb9a-48d6-8fd8-806c570ebb02
• SCIP notification number (Sweden): 66d76b28-c884-43f5-8307-26ebeb61db74

Environmental requirements

• Ambient temperature (operation at U_N): -40 … +60 °C
• Ambient temperature (storage): -40 … +70 °C
• Operating altitude (max.): 2000m
• Processing temperature: -25 … +50 °C
• Relative humidity: 5 … 85 % (no condensation permissible)
• Temperature range of connection cable: ≥ (T_ambient + 30 K)

Material data

• Color: gray
• Fire load: 0.544MJ
• Flammability class per UL94: V0
• Insulation material (main housing): Polyamide (PA66)
• Material group: I
• Note (material data):
  Information on material specifications can be found here
  
• Weight: 30.6g

Mechanical data

• Mounting position: Horizontal (standing/lying); vertical
• Mounting type: DIN-35 rail

Notes

• Note: To protect the relay coils and contacts, inductive loads must be dampened with an effective protection circuit.
• Safety Information: Adjacent devices of the same type are devices of the same design (series) that are arranged next to one another on the DIN-rail with the same orientation. An end stop (249-116) must be fitted to devices of other types for compliance with the reinforced insulation requirements.

Physical data

• Depth from upper-edge of DIN-rail: 81 mm / 3.189 inches
• Height: 94 mm / 3.701 inches
• Width: 6 mm / 0.236 inches

Safety and protection

• Dielectric strength (control/load circuit) (AC, 1 min): 3.51 kVrms
• Dielectric strength (open contact) (AC, 1 min): 1 kVrms
• Insulation type (between adjacent devices of the same type): Double insulation (safe isolation)
• Insulation type (control/load circuit): Reinforced insulation (safe isolation)
• Insulation type (to adjacent devices of different types): Basic insulation
• Overvoltage category: III
• Pollution degree: 2
• Protection type: IP20
• Rated impulse withstand voltage: 4kV
• Rated voltage: 300V
• Safety Information: Adjacent devices of the same type are devices of the same design (series) that are arranged next to one another on the DIN-rail with the same orientation. An end stop (249-116) must be fitted to devices of other types for compliance with the reinforced insulation requirements.
• Type of circuits: Mains circuits

Standards and specifications

• Standards/specifications: EN 61010-2-201|EN 61810-1|EN 61373|UL 508|ATEX|IECEx

Technical data

• Control circuit - Input voltage range: -15 … +20 %
• Control circuit - Nominal input current at U_N: 17 mA
• Control circuit - Nominal input voltage U_N: 12 VDC
• Load circuit - Bounce time (typ.): 3.5ms
• Load circuit - Contact material (relay): AgSnO₂
• Load circuit - Drop-out time (typ.): 8ms
• Load circuit - Electrical life (NO; resistive load; 23 °C): 50 x 10³ switching operations
• Load circuit - Inrush current (resistive) max.: (AC) 20 A / 0.02 s
• Load circuit - Limiting continuous current: 6 A
• Load circuit - Mechanical life: 5 x 10⁶ switching operations
• Load circuit - Number of changeover/switchover contacts: 1
• Load circuit - Pull-in time (typ.): 8ms
• Load circuit - Recommended minimum load: 10 V / 10 mA; 24 V / 1 mA
• Load circuit - Switching capacity: AC-15: 3 A / 250 VAC; DC-13: 2 A / 24 VDC
• Load circuit - Switching frequency with/without load (max.): 6 min^-1 / 180 min^-1
• Load circuit - Switching power (resistive) max.: AC 1500 VA; DC (see load limit curve)
• Load circuit - Switching Voltage, Max.: 250 VAC
• Signaling - Status indicator: Yellow LED