Item no. 857-304

Relay module; Nominal input voltage: 24 VDC; 1 changeover contact; Limiting continuous current: 6 A; Yellow status indicator; Module width: 6 mm; 2,50 mm²; gray

Item no. 857-304
Stock item


To protect the relay coils and contacts, inductive loads must be dampened with an effective protection circuit.

Product details

Technical data
Control circuit
Nominal input voltage UN DC 24 V
Input voltage range -15 … +20 %
Nominal input current at UN 10 mA
Load circuit
Number of changeover/switchover contacts 1
Contact material (relay) AgSnO2
Limiting continuous current 6 A
Inrush current (resistive) (max.) (AC) 20 A / 0.02 s
Switching voltage (max.) AC 250 V
Switching power (resistive) (max.) AC 1500 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.) 8 ms
Drop-out time (typ.) 8 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
Status indicator Yellow LED
Safety and protection
Rated voltage 300 V
Rated surge voltage 4 kV
Circuit type Mains circuits
Overvoltage category III
Pollution degree 2
Dielectric strength, control/load circuit (AC, 1 min) 3.51 kVrms
Dielectric strength, open contact (AC, 1 min) 1 kVrms
Insulation type (control/load circuit) Reinforced insulation (safe isolation)
Insulation type (between adjacent devices of the the same type) Reinforced insulation (safe isolation)
Protection type 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
Physical data
Width 6 mm / 0.236 inch
Height from upper-edge of DIN-rail 81 mm / 3.189 inch
Depth 94 mm / 3.701 inch
Mechanical data
Mounting type DIN-35 rail
Material data
Color gray
Weight 31.6 g
Environmental requirements
Surrounding air temperature (operation at UN) -40 … 60 °C
Surrounding air temperature (storage) -40 … 70 °C
Processing temperature -25 … +50 °C
Relative humidity 5 … 95 % (no condensation permissible)
Operating altitude (max.) 2000 m
Standards and specifications
Standards/Specifications EN 61010-2-201; EN 61810-1; EN 61373; UL 508; GL; ATEX; IEC Ex
Basic relay
WAGO Basic Relay 857-152
Commercial data
Product Group 6 (Interface Electronics)
Packaging type BOX
Country of origin CN
GTIN 4050821797807
Customs tariff number 85364900990
Approvals / Certificates
Additional Approval Text
Certificate name
Approval: ATEX
Additional Approval Text EN 60079-0
Certificate name: BVS_14_ATEX_E_091_X
Approval: CCCEx
Additional Approval Text CNCA-C23-01
Certificate name: 2020312304000757
Approval: IECEx
Additional Approval Text IEC 60079-0
Certificate name: IECEx_BVS_14.0079_X
Approval: UL
Underwriters Laboratories Inc. (HAZARDOUS LOCATIONS)
Additional Approval Text UL 121201
Certificate name: E198726
Ship Approvals
Additional Approval Text
Certificate name
Approval: BV
Bureau Veritas S.A.
Additional Approval Text Rules for class. of Steel Ships
Certificate name: 40179_B0
Approval: DNV GL
Det Norske Veritas, Germanischer Lloyd
Additional Approval Text -
Certificate name: TAA00001D1
Approval: NK
Nippon Kaiji Kyokai
Additional Approval Text -
Certificate name: TA17255M
Approval: PRS
Polski Rejestr Statków
Additional Approval Text -
Certificate name: TE/2186/880590/18
Additional Approval Text
Certificate name
Approval: UL
UL International Netherlands B.V. (ORDINARY LOCATIONS)
Additional Approval Text UL 508
Certificate name: E175199 Sec.4
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Installation Notes
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