When fitting a smart relay into a back-box, D1-2 connectors join live, neutral and the lamp wire without twisting, and the lever shows the conductor is fully seated.
What it is, who it's for, what it does
About this product
Sonoff D1-2 connectors replace wire twisting and screw terminals when wiring smart modules, light fixtures or sockets. Lift the orange lever, insert the wire, close the lever — the contact is made, with no screwdriver and no soldering.<br><br>The set covers most joints in a junction box or panel. The housing is flame-retardant polycarbonate, the contacts are tinned red copper, rated for 250V and 32A. It accepts solid wire 0.2–4 mm² and flexible wire 0.2–2.5 mm². Screw holes on both sides of the body let you fix the connector inside an enclosure rather than leaving it hanging on the wires.
- DeliveryDelivery 50 MDL
- Returns14 days to return
- Warranty24 months
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Where it works
Use cases
Through the screw holes on both sides the connector is fastened inside a distribution box, keeping nodes neat and easy to inspect at a service check.
The set stays in the bag as stock for any smart install, from light fixtures to relocated sockets, with no on-site wire twisting.
For the installerTechnical specificationsfull spec · wiring · datasheet
For the installer
Technical specifications
full spec · wiring · datasheet
Power
- Rated voltage
- 250 V
- Rated current
- 32 A
Physical
- Rigid wire
- 0.2-4 (24-12 AWG) mm²
- Flexible wire
- 0.2-2.5 (24-14 AWG) mm²
- Contacts material
- tinned red copper
- Insulation material
- flame-retardant polycarbonate (PC)
- Locking
- mounting holes on both sides of the housing
- Package dimensions
- 210×112×30 mm
- Set weight
- 453 g
Other
- Connection type
- lever terminal, no screws or soldering
Support
Frequently asked questions
What exactly is the D1-2?
They are lever quick wire connectors for splicing wires (WAGO-type): lift the lever, insert the stripped wire, close it — no screws and no soldering. Sold as a set.What wire cross-section does the D1-2 accept?
Solid wire 0.2-4 mm² (24-12 AWG) and flexible wire 0.2-2.5 mm² (24-14 AWG) — including the common household 1.5 and 2.5 mm² cabling.What voltage and current does it handle?
250V rated voltage and 32A rated current, enough for household lighting and socket circuits.Can I fix the connector in the box?
Yes — there are screw holes on both sides of the body so you can fasten the connector inside the box instead of leaving it on the wires. It is not DIN-rail mounted.How does it differ from the Sonoff 211 DIN-rail connectors?
The 211 is meant for DIN-rail mounting, while the D1-2 is a free lever connector that screws down through the holes in its body — choose the D1-2 when you have no DIN rail.Can I use the connector with flexible stranded wire?
Yes, up to 2.5 mm²; insert the conductor fully and close the lever, then confirm the hold with a light tug.What is it made of?
A flame-retardant, heat-resistant polycarbonate housing with tinned red-copper contacts for good conductivity and corrosion resistance.
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Manager guidance
Questions about this product?
A CasaSmart manager calls you within 1–2 working hours and answers anything — compatibility, install, alternatives.
+373 60 944 922Updated: · reviewed by CasaSmart Expert Team