The RE2.U2C.AC230.S0 is a compact PCB-mount relay with two changeover contacts, sized for panel builds where board-mounted switching makes more sense than a plug-in 14-pin relay. Running on 230VAC, it's a straightforward isolation relay for mains-voltage control circuits needing a smaller footprint. It's priced well below premium-brand equivalents and held in UK stock for fast dispatch.
Requires relay base: RS2.M2CO.08V.S0 (sold separately)
Technical Details
Frequently Asked Questions
What's the difference between this and the RE2.F4C series relays?
This U2C relay has 2 changeover contacts on a compact PCB-mount 8-pin package, versus the F4C series' 4 contacts on a larger 14-pin plug-in package. Choose this where board space is limited and you only need 2 contacts.
Do I need a separate base to mount this?
Yes — this relay requires the RS2.M2CO.08V.S0 relay base, sold separately.
Why use a miniature relay instead of switching the load directly?
It lets you control a larger load with a small control current — useful for electrical isolation, latching circuits, or auxiliary signalling from spare poles.
What does 2PCO mean?
Two independent changeover (pole) contacts, letting you wire two separate circuits or a redundant pair from one relay.
Industry Applications
- PLC output isolation — protecting sensitive control electronics from larger switched loads
- Control panel building — compact PCB-mount switching for space-constrained boards
- Maintenance & fault-finding — quick field replacement of a standardised relay type

