WAGO 857-357

Basic Relay

• WAGO Basic Relay
  • 857-155

Commercial Data

• Country of origin
  • CN
• Customs tariff number
  • 85364900990
• GTIN
  • 4055143656467
• Packaging type
  • Box

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

Control Circuit

• Input voltage range
  • ±20 %
• Nominal frequency range (input voltage)
  • 50 … 60 HzAC / 0 HzDC
• Nominal input current at UN
  • 4 mA
• Nominal input voltage UN
  • AC/DC 115 V

Environmental Requirements

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

Load Circuit

• Bounce time (typ.)
  • 3.5 ms
• Contact material (relay)
  • AgSnO2
• Drop-out time (typ.)
  • 25 ms
• Electrical life (NO; resistive load; 23 °C)
  • 50 x 10³ switching operations
• Inrush current (resistive) max.
  • (AC) 20 A / 0.02 s
• Limiting continuous current
  • 6 A
• Mechanical life
  • 5 x 10⁶ switching operations
• Number of changeover/switchover contacts
  • 1
• Pull-in time (typ.)
  • 15 ms
• Recommended minimum load
  • 10 V / 10 mA; 24 V / 1 mA
• Switching capacity
  • AC-15: 3 A / AC 250 V; DC-13: 2 A / DC 24 V
• Switching frequency with/without load (max.)
  • 6 min-1 / 180 min-1
• Switching power (resistive) max.
  • AC 1500 VA; DC (see load limit curve)
• Switching voltage (max.)
  • AC 250 V

Material Data

• Color
  • Gray
• Fire load
  • 0.552 MJ
• Weight
  • 32.180 g

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 are devices of the same design (series) that are arranged next to each other with the same orientation on the mounting rail. 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 surge voltage
  • 4 kV
• Rated voltage
  • 300 V
• Safety information
  • Adjacent devices are devices of the same design (series) that are arranged next to each other with the same orientation on the mounting rail. 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

Signaling

• Status indicator
  • Yellow LED

Specifications

• Product Group Code
  • 0006

Standards And Specifications

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