Overview
SONOFF BASIC-ZB1GSP is a single-channel DIN-rail smart metering switch for installing inside a domestic distribution board to enable remote switching, energy consumption monitoring, and overload protection for one circuit via an app or automation systems.
Specifications
| Product series | Basic Series |
| Product name | Zigbee Smart Switch BASIC-ZB1GSP |
| Model / MCU | TLSR8656 |
| Rating | 100–240 V~ (50/60 Hz), 32 A Max |
| Zigbee | Max IEEE 802.15.4 |
| Net weight | 93.5 g |
| Dimensions | 84 x 66.5 x 18 mm |
| Colour / Casing material | White / PC |
| Recommended wire gauge range | For 11 AWG to 6 AWG (4 mm to 10 mm) SOL/STR copper conductors only |
| Indoor use | Yes |
| Operating temperature | -15 °C to 50 °C (15T50) |
| Operating humidity | 10% to 90% RH, non-condensing |
| Pollution degree / Rated impulse voltage | II / 4 kV |
| Automatic action (cycles) | 10,000 cycles |
| Control type | 1.B |
| Operating altitude | 2000 m |
| CE frequency / Output power | Zigbee: 2405–2480 MHz; 10 dBm |
| Wiring terminal torque | Maximum 1.5 Nm |
| Wire stripping length | Maximum 12 mm |
Quick Guide
- Power off the main supply at the circuit breaker before installation.
- Mount the BASIC-ZB1GSP on the DIN rail inside the domestic distribution board, positioned directly downstream of the upstream 32 A MCB.
- Wire input to the top terminals: connect Neutral to N (IN) and Line to L (IN).
- Wire the load to the bottom terminals: connect Neutral to N (OUT) and Line to L (OUT).
- Tighten terminal screws to a maximum torque of 1.5 Nm, then verify wiring before restoring power.
- On first power-up, pairing mode starts automatically (blue network LED flashes slowly). If needed, press and hold the button for ~5 seconds to re-enter pairing mode.
- In the eWeLink app, add a SONOFF Zigbee gateway (set up and linked to your eWeLink account).
- Add the BASIC-ZB1GSP using either: (1) Scan the device QR code in the app and select your Zigbee gateway, or (2) Use the gateway interface to start pairing mode, then wait for completion.
Troubleshooting
- Device not paired / pairing unsuccessful: If the blue network LED is solid OFF, pairing failed or the pairing timeout occurred. Re-enter pairing mode by pressing and holding the button for approximately 5 seconds (blue LED flashes slowly) and try adding again.
- Gateway connection abnormal: If the blue network LED rapidly flashes, the gateway connection is abnormal. Ensure the gateway is set up and linked to your eWeLink account and retry the adding process.
- Overload protection triggered: If the on/off indicator (red) continuously rapid-flashes in an endless loop, the device is locked due to overload protection. Check that the connected load is within the specified limits and correct wiring, then re-test.
- Factory reset needed: If re-pairing is required with a different eWeLink account, trigger a factory reset by pressing and holding the device button for 10 seconds, or delete the device from the eWeLink app.
FAQ
- How do I enter pairing mode on the BASIC-ZB1GSP?
- On first power-up it enters pairing mode by default. To re-enter pairing mode, press and hold the button for approximately 5 seconds until the blue network LED flashes slowly.
- What does the red on/off indicator mean?
- Solid ON means the relay is closed; solid OFF means the relay is open. Continuous rapid flashing indicates the device is locked due to overload protection.
- What does the blue network LED indicate?
- Slow flashing indicates pairing mode. Rapid flashing indicates the gateway connection is abnormal. Solid ON means connected to the gateway successfully. Solid OFF means pairing failed or pairing timeout.
- How can I factory reset the device?
- You can trigger a factory reset by deleting the device from the eWeLink app, or by pressing and holding the device button for 10 seconds.
- How do I wire the device inside the distribution board?
- Connect input: Neutral to N (IN) and Line to L (IN) on the top terminals. Connect load: Neutral to N (OUT) and Line to L (OUT) on the bottom terminals. Tighten terminal screws to a maximum torque of 1.5 Nm.
Documents / Resources
 | BASIC-ZB1GSP Smart Switch |
References
- User Manualmanual.tools
Published: November 12, 2026