Name: WAGO 788-512 AC Interface Relay Module - INOSAKI
SKU: Wago-788-512
Price: 29.70 USD
Availability: InStock

Technical Overview

Compact 24 VAC, 8 A DPDT interface relay with Push-in CAGE CLAMP for DIN-rail control applications.

Key Features

24 VAC Nominal Input Voltage with ±10% tolerance for reliable control performance.
2 Changeover Contacts (DPDT) support up to 8 A continuous current.
Built-in Red Status LED for quick visual indication of relay status.
Slim DIN-rail mountable design, only 15 mm wide, optimizing control cabinet space.
Reinforced Insulation between coil and contacts for enhanced safety.
Compliant with international safety and compliance standards including EN, UL, and DNV.
IP20 protection rating for general industrial environments.

Technical Specification Matrix

Parameter	Value
Nominal Input Voltage	24 VAC (±10%)
Nominal Input Current at UN	34 mA
Contacts	2 changeover contacts (DPDT)
Contact Material	AgNi 90/10 (Silver-Nickel)
Limiting Continuous Current	8 A
Maximum Inrush Current (resistive)	AC: 15 A / 4 s
Maximum Switching Voltage	250 VAC
Maximum Switching Power (Resistive)	AC: 2000 VA
Recommended Minimum Load	12 V / 10 mA
Dielectric Strength (Control/Load Circuit)	5 kVrms (AC, 1 min)
Dielectric Strength (Open Contact)	1 kVrms (AC, 1 min)
Dielectric Strength (Load/Load Circuit)	2.5 kVrms (AC, 1 min)
Rated Surge Voltage	4 KV
Pollution Degree	3
Connection System	Push-in CAGE CLAMP®
Conductor Size (Solid/Fine-stranded)	0.34–2.5 mm² (22–14 AWG)
Strip Length	9–10 mm (0.35–0.39 in)
IP Rating	IP20
Mounting Type	DIN-35 rail
Operating Temperature	-40 to 70 °C
Electrical Life (NO, resistive load, 23 °C)	10 x 10^3 switching operations
Mechanical Life	30 x 10^6 switching operations
Bounce Time (typical)	10 ms
Drop-out Time (typical)	35 ms
Pull-in Time (typical)	15 ms
Physical Weight (kg)	0.05
Dimensions L x W x H (cm)	5.4 x 1.5 x 8.6

Industrial Applications

1. Industrial Control Panel Signal Routing

The WAGO 788-512 is ideal for reliable signal isolation and switching within industrial control panels. Its 24 VAC nominal input voltage and DPDT contacts allow for flexible control schemes, effectively isolating control circuits from higher power loads or providing status feedback.

Problem Solved

Safely isolates low-voltage control signals (24 VAC) from higher power circuits and enables switching of moderate loads (up to 8A) with clear visual status indication (red LED), while its slim 15 mm DIN-rail design optimizes space within crowded control cabinets.

24 VAC controlDPDT switchingsignal isolationDIN-rail mounting8A loadcontrol panel

2. Building Automation Systems (HVAC, Lighting)

This relay module is well-suited for switching various loads in building automation systems, such as controlling small HVAC components (e.g., fans, dampers) or specific lighting circuits that operate on 24 VAC. The Push-in CAGE CLAMP® connections ensure quick and secure installation in building distribution boards.

Problem Solved

Provides a compact and efficient solution for switching 24 VAC loads (up to 8A) in building automation, offering reliable operation and fast, tool-free wiring, which significantly reduces installation time and labor costs in commercial or residential settings.

Building automation24 VAC lighting controlHVAC controlDPDT contactsPush-in CAGE CLAMPquick installation

3. Non-Critical Machine Safety Interface

For non-critical machine control interfaces where a 24 VAC signal needs to activate or de-activate a component requiring 2 changeover contacts, the 788-512 can serve as a robust intermediary. Its reinforced insulation contributes to operational safety in such applications.

Problem Solved

Bridges the gap between 24 VAC machine control logic and actuators requiring DPDT switching (up to 8A), ensuring reliable signal transfer and enhancing safety through reinforced insulation in scenarios where a dedicated safety-rated relay is not strictly mandated but robust isolation is desired.

Machine control24 VAC interfaceDPDTreinforced insulation8A switchingindustrial machinery