WAGO 857-724 Solid-State Relay Module

USD 18.20

Total:

Compact 6mm solid-state relay module for 24VDC nominal input, 0-30VDC/3A output, featuring Push-in CAGE CLAMP connections and DIN rail mounting.

SKU Wago-857-724 Category
MOQ: 25 pcs   >>   Order in multiples of 25
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WAGO 857-724 Solid-State Relay Module

Model Identifier 857-724
Official Part Number 857-724
GTIN Standard 4045454835552

Technical Overview

Compact 6mm solid-state relay module for 24VDC nominal input, 0-30VDC/3A output, featuring Push-in CAGE CLAMP connections and DIN rail mounting.

Key Features

  • Solid-state / static relay (SSR) for reliable switching
  • Single-pole / single-phase (1P) configuration
  • Equipped with Push-in CAGE CLAMP connections for fast wiring
  • Designed for 35 mm DIN rail mounting
  • Features a yellow LED status indicator for operational feedback
  • High switching frequency up to 350Hz
  • RoHS compliant for environmental standards

Ensures safe isolation of wiring and function levels.

Technical Specification Matrix

ParameterValue
Contact ConfigurationSPST
Nominal Input Voltage24 VDC
Control Voltage Range18.8-31.2 VDC
Output Voltage Range0-30 VDC
Limiting Continuous Current3 A
Connection TypePush-in CAGE CLAMP
Mounting Type35 mm DIN Rail
IP RatingIP20
Operating Temperature-20°C to +70°C
Processing Temperature-25°C to +50°C
Storage Temperature-40°C to +70°C
Humidity5-85% RH (non-condensing)
Switching Frequency350 Hz
Response Time (ON)100 µs
Response Time (OFF)600 µs
MaterialPolyamide (PA) 66
IndicatorYellow LED
Module Width6 mm
Physical Weight (kg)0
Dimensions L x W x H (cm)8.1 x 0.6 x 9.4

Industrial Applications

1. Industrial Control Panel for Automated Machinery

The WAGO 857-724 is ideal for precisely switching low-voltage DC signals (e.g., from a PLC to actuators) within industrial control cabinets. Its compact 6mm width enables high-density installations on DIN rails, critical in space-constrained environments. The 3A continuous current is suitable for controlling small motors, solenoids, or indicator lights, while its fast switching speed (100µs ON, 600µs OFF) is crucial for time-sensitive automation tasks, and the IP20 rating ensures protection within an enclosure.

Problem Solved

Provides high-density, fast, and reliable DC signal switching for actuators and indicators in compact industrial control panels.

PLC interfacingDC load switchinghigh-density mountingfast response timeindustrial automationcontrol cabinetsDIN rail

2. Building Automation Systems (BAS) for HVAC/Lighting

This solid-state relay module is well-suited for interfacing 24VDC building control signals to various DC loads, such as small damper actuators or LED lighting circuits in Building Automation Systems. Its solid-state nature ensures silent operation and a long lifespan, which is highly beneficial in occupied spaces where noise and maintenance are concerns. The DIN rail mounting simplifies integration into standard electrical panels, and the IP20 rating is acceptable for indoor panel installations.

Problem Solved

Offers silent, long-lasting, and efficient 24VDC signal control for HVAC and lighting components in building automation, reducing noise and maintenance.

Building managementHVAC controlsilent switching24VDC circuitspanel integrationlong lifespanlow maintenance

3. Test & Measurement Equipment for DC Signal Routing

The WAGO 857-724 can be utilized in test fixtures or measurement systems to reliably route or switch low-power DC signals. Its quick, chatter-free solid-state operation and high endurance are essential for maintaining signal integrity, particularly for sensitive measurements where contact bounce from mechanical relays would be detrimental. The 3A current capability can handle moderate test loads, and the narrow 6mm width allows for efficient implementation of multiple switching channels in a compact test setup.

Problem Solved

Enables precise, chatter-free, and high-integrity DC signal routing and switching for sensitive test and measurement applications, improving data reliability.

DC signal switchingtest fixture automationsignal integritycontact-free operationcompact designrapid switchingmeasurement systems
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