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Control panels burn through interposing relays constantly — isolating PLC outputs from field loads, switching pilot lights, or handling small motor starters — and buying them one at a time from a distributor gets expensive fast. This UL-listed 10-pack of DIN-rail relays is aimed squarely at that use case: cheap enough to stock a drawer full, without cutting corners on certification.
What It Is
This is a set of ten HF41F/24-ZS miniature electromagnetic relays with 24V AC/DC coils, 1 Form C (1NO/1NC) contacts rated 6A at 250VAC/30VDC, along with matching DIN-rail sockets, jumpers, separators, and mounting rail sections. They’re UL and VDE certified on the relay, with the socket carrying UL/CSA and CE certification — worth checking if your panel needs to meet a specific listing requirement.
Key Features
- 24V AC/DC coil, 1 Form C contact (1NO+1NC), 6A @ 250VAC/30VDC rating
- UL and VDE certified relay; UL/CSA and CE certified socket
- Slim 5mm-wide DIN-rail socket footprint for tight panel layouts
- Plug-and-play socket design for quick relay replacement without rewiring
- Rated for 10,000,000 mechanical cycles and 300,000 electrical cycles
- Includes 10 relays, 10 sockets, DIN rail sections, jumpers, separators, and fixing clips
Pros and Cons
For panel builders, the combination of real UL/VDE certification and a 10-pack price under $50 is the main selling point — these aren’t unmarked no-name relays, and the slim footprint helps when you’re packing a lot of I/O isolation into a small enclosure. The plug-and-play socket also means a field relay swap takes seconds.
With a smaller number of ratings than some established brands, it has less of a long track record, and the 6A contact rating means these are for pilot duty and small loads, not for switching motors directly — plan on a contactor for anything beyond light-duty switching.
Who It’s For
Panel builders and maintenance techs who need a reliable stock of interposing relays for PLC output isolation, indicator lights, or other small 24V control-circuit switching, and who want DIN-rail mounting to match standard panel layout.
Verdict
For general-purpose PLC interposing and control-circuit relay duty, this certified 10-pack is a practical way to keep spares on hand without paying distributor prices per relay.