UL001D- Relay Module 24 VDC, 1CO with option of fuse, fuse fail in Pot free & wetted contacts
UL002D- Relay Module 24 VDC, 2CO with option of fuse, fuse fail in Pot free & wetted contacts
UL001A- Relay Module 110VAC/230VAC 1CO with options of fuse in each contact
UL002A- Relay Module 110VAC/230VAC 2CO with options of fuse in each contact
UL004D/A- Relay Module 24VDC/110VAC/230VAC 4CO pot free