Impact-Company-Logo-English Black-01-177x54

Welcome to the Schneider Electric corporate Website

Schneider Electric Logo
Harmony Electromechanical Relays Catalog

DIA5ED2130303EN | October 2025

782H hermetically sealed relays
Presentation and description
Presentation of the range

The hermetically sealed 782H series relays comply with UL Class I Division 2 requirements for use in hazardous locations. They are suitable for installation in harsh, hazardous, and corrosive environments like offshore mining and refineries in the oil and gas, petrochemical, chemical, and mining and minerals sectors.

782H hermetically sealed relays comprise:

  • Relays with 3 A/5 A, 2 CO/4 CO contacts
  • Sockets with multiple configurations, finger-safe according to IP20, and compatible with DIN rail or panel mounting
  • Accessories (protection modules and/or LED indicator)

These relays are available in panel, DIN rail, PCB, and chassis mount versions.

Relay description
Relay

1 Hermetically sealed enclosure

2 Flat (Plug-in type) terminal

3 Stub to mount in panel

Socket

4 There are different types of sockets:

DIN rail or panel mount sockets

a with screw connector

b with screw connector

c with screw clamp terminals

■ Other types of terminals

d Solder terminals for chassis mount

e Printed circuit terminals for PCB mount

5 Connection by screw connector

6 Location for protection modules

7 Solder lug

8 PCB pins

Back to Top
References
Back to Top
  • Legal information
  • Privacy policy
  • Change your cookie settings

© 2025 Schneider Electric

Legal information
  • Our Purpose
  • Company Profile
  • Report a misconduct
  • Accessibility
  • Newsroom
  • Financial Results
  • Annual Reports
  • Share Price
  • Investor Events
  • Sustainability
  • Electricity 4.0
  • Next-generation Automation
  • AI and Technology
  • Reports
  • Foundation
  • Consulting
  • Global - FR
  • Legal Information
  • Privacy Policy
  • Cookie Notice
  • Change your cookie settings