Wago 857-303 Data Sheet

Data sheet | Item number:857-303

Relay module; Nominal input voltage: 12 VDC; 1 changeover contact;
Limiting continuous current: 6 A; Yellow status indicator; Module width: 6 mm

DC load limit curve

Color:

Item description

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Data sheet | Item number:857-303

Note:

Inductive loads have to be attenuated by an appropriate protective circuit in order to protect relay coils and contacts.

Data

Technical Data

Control circuit

Nominal input voltage U

N

DC12V

Input voltage range -15 … +20%

Nominal input current at U

N

17mA

Load circuit:

Number of changeover/switchover contacts 1

Contact material (relay) AgSnO

2

Limiting continuous current 6A

Max. make current (resistive) (AC) 20A/ 0.02s

Max. switching voltage AC250V

Max. switching power (resistive) AC1,500VA;DC see load limit curve

Switching capacity AC-15:3A/ AC250V;DC-13:2A/ DC24V

Recommended minimum load 10V/ 10mA;24V/ 1mA

Pull-in time (typ.) 15 ms

Drop-out time (typ.) 25ms

Bounce time (typ) 3.5 ms

Electrical life (N.O.; resistive load; 23 °C)

50x 10 switching operations

3

Mechanical life (N.O.; resistive load; 23 °C)

5x 10 switching operations

6

Max. switching load with load/without load

6min / 180min

-1 -1

Signaling

Status indication LED yellow

Safety and protection:

Rated voltage 250 V

Rated impulse voltage 4 kV

Pollution degree 2

Dielectric strength, control/load circuit (AC, 1 min) 4kVrms

Dielectric strength open contact (AC, 1 min) 1kVrms

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Data sheet | Item number:857-303

Protection class IP20

Connection data

Connection technology

Push-in CAGE CLAMP

®

Solid conductor 0.34 … 2.5mm²/ 22 … 14AWG

Fine-stranded conductor 0.34 … 2.5mm²/ 22 … 14AWG

Strip length 9 … 10mm/ 0.35 … 0.39inch

Geometrical Data

Width 6mm/ 0.236inch

Height from upper-edge of DIN-35 rail 81mm/ 3.189inch

Depth 94mm/ 3.701inch

Mechanical data

Type of mounting DIN-35 rail

Material Data

Color gray

Fire load 0.631 MJ

Weight 30.6 g

Environmental Requirements

Pollution degree 2

Surrounding air (operating) temperature at U

N

-40 … 60°C

Surrounding air (storage) temperature -40 … 70°C

Processing temperature -25 … +50°C

Standards and specifications

Standards/specifications EN 61010-2-201; EN 61810-1; EN 61373; UL 508; ATEX, IEC Ex

Elementary relay

WAGO elementary relay 857-150

Commercial data

Product Group 6 (Interface Electronics)

Country of origin CN

GTIN 4055143135207

Customs Tariff No. 85364900990

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Data sheet | Item number:857-303

Approvals / Certificates

Ex-Approvals

Logo Approval Additional Approval Text Certificate name

ATEX

DEKRA EXAM GmbH

EN 60079-0 BVS_14_ATEX_E_091_X

IECEx

DEKRA EXAM GmbH

IEC 60079-0 IECEx_BVS_14.0079_X

UL

UL International Germany GmbH (HAZARDOUS
LOCATIONS)

ANSI/ISA 12.12.01 E198726 Sec.4

UL-Approvals

Logo Approval Additional Approval Text

Certificate
name

UL

UL International Netherlands B.V. (ORDINARY
LOCATIONS)

UL 508 E175199

Sec.4

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