Name: WAGO 857-734 Solid-State Relay Module - INOSAKI
SKU: Wago-857-734
Price: 36.09 USD
Availability: InStock

Technical Overview

Compact 6 mm wide solid-state relay module for 24 VDC input, 0-30 VDC output, 8 A continuous current, with Push-in CAGE CLAMP connections and DIN rail mounting.

Key Features

Solid-state (SSR) switching technology for high switching frequencies and long life.
Plug-in design with pre-assembled socket base for easy installation and maintenance.
Integrated yellow LED indicator for clear operational status display.
Single-pole / single-phase (1P) configuration.
Push-in CAGE CLAMP® connections for fast, vibration-proof, and maintenance-free wiring.
DIN-35 rail mounting (6 mm width) for efficient panel space utilization.
Wide ambient operating temperature range from -25°C to +70°C.
RoHS compliant.
Safe electrical isolation between control and load circuits.

Technical Specification Matrix

Parameter	Value
Nominal Input Voltage	24 VDC
Control Voltage Range	16.8 VDC to 30 VDC
Output Voltage Range	0 VDC to 30 VDC
Limiting Continuous Current (Load Current)	8 A
Minimum Operating Voltage	1 VDC
Relay Terminals	Cage Clamp
Relay Mounting	DIN Rail
Poles	Single-pole / Single-phase (1P)
Switching Frequency	500 Hz
Degree of Protection	IP20
Operating Temperature Range	-25°C to +70°C
Conductor Cross Section (min)	0.34 mm² (22 AWG)
Conductor Cross Section (max)	2.5 mm² (14 AWG)
Stripping Length	9 mm
Physical Weight (kg)	0.03
Dimensions L x W x H (cm)	8.1 x 0.6 x 9.4

Industrial Applications

1. Industrial Process Control with PLCs

In applications where PLCs output low-current signals (e.g., 24 VDC) but need to switch higher current DC loads (up to 8 A, 30 VDC) like solenoid valves or small motors, this relay provides crucial electrical isolation and amplification. Its compact 6 mm width is ideal for high-density control cabinets.

Problem Solved

Provides electrical isolation and current amplification for PLC outputs switching higher-power DC loads in space-constrained control panels.

PLC interfaceelectrical isolationDC load switchingcompact form factor24VDC control8A output

2. Fast Switching for Automated Machinery

For machinery requiring rapid and frequent switching of DC components (e.g., actuators, indicators) within a 0-30 VDC, 8 A range, the solid-state nature of the 857-734 offers a significantly longer lifespan and higher switching frequency compared to electromechanical relays, reducing maintenance and improving machine uptime.

Problem Solved

Enables high-speed, frequent switching of DC loads in automated machinery, extending component lifespan and improving reliability.

High switching frequencysolid-state relayDC actuationlong lifespanautomation30VDC8A

3. Control Panel Signal Conditioning

This IP20-rated relay can be used within a protected control panel to safely interface 24 VDC control signals with 30 VDC/8A loads, ensuring reliable signal conditioning and power management. Its robust Push-in CAGE CLAMP® connections ensure reliable operation in typical industrial environments.

Problem Solved

Provides reliable signal conditioning and safe electrical isolation for interfacing control signals with higher-power DC loads within a control panel.

Signal conditioningcontrol panelelectrical isolationDC voltage controlrobust connectionsIP208A