Schrack MT3330C4 is a 24VDC coil, three-pole MT relay designed to plug into Schrack’s MT78740 base. The MT78740 is an 11-pole screw-terminal socket built specifically for MT3x relays, providing an 11-contact footprint that accommodates three Form C (3 CO) contacts. In MT3x configurations, these three changeover contacts are typically rated up to 10A per contact, making the MT3330C4 suitable for compact control panels and automation circuits that require multiple isolated switching paths. When paired with the MT78740 base, this relay forms a slim, plug-in module that simplifies wiring and maintenance in panel environments.
