GRD9L-W WiFi Auto Recloser Module for MCB/RCCB/RCBO

  • WiFi app control – Remotely open or close a compatible MCB, RCCB, or RCBO through the Tuya Smart app.
  • Scheduled operation – Set timed ON/OFF commands in the app for connected distribution circuits.
  • AUTO and MANU modes – Enable app commands in AUTO mode or use local manual operation in MANU mode.
  • Compact DIN rail module – The 18 mm wide operating mechanism measures 82 x 18 x 78 mm.
  • 2.4 GHz connectivity – Supports 802.11 b/g/n WiFi and does not support 5 GHz networks.

Please specify the matching MCB, RCCB, or RCBO model and configuration when ordering.

Download the GRD9L-W catalog PDF

Description

GRD9L-W WiFi Auto Recloser Module

The GEYA GRD9L-W is a WiFi-controlled operating module for compatible MCB, RCCB, and RCBO devices. It adds app-based opening and closing, scheduled switching, local mode selection, and a mechanical closing lock to supported circuit breaker assemblies. The protective characteristics remain those of the matched MCB, RCCB, or RCBO.

Remote Control And Scheduling

When the selector is in AUTO mode and the device is connected to a 2.4 GHz WiFi network, the Tuya Smart app can send opening and closing commands. The app also supports timed ON/OFF schedules for connected circuits.

Operating Modes

  • AUTO: app-based opening and closing commands are enabled.
  • MANU: app commands are disabled and the paired breaker is operated locally.
  • LOCK: the closing lock can be engaged during inspection or maintenance to prevent operation.

Status Indication

After power-up, the green indicator flashes for approximately two seconds while the power supply stabilizes. A steady green light indicates a normal WiFi connection, a flashing green light indicates network configuration mode, and a red light indicates a trip fault.

Compatibility And Installation

GRD9L-W is a one-module DIN rail operating mechanism designed to be mechanically matched with selected GEYA breaker families, including illustrated GYM9 and GYL9 combinations. The exact breaker model, poles, handle position, and accessory arrangement must be confirmed before ordering. Installation and electrical connection must be completed by a qualified electrician.

Applications

The module is intended for intelligent household electricity management and photovoltaic distribution systems that require remote circuit operation or scheduled switching. It is suitable for distributors, panel builders, system integrators, and OEM/ODM buyers who need a compact WiFi operating module for a compatible protective device.

GRD9L-W wiring diagram

Technical Parameters

Parameter GRD9L-W
Control mode WiFi
Supply terminals A1-A2
Supply voltage AC 220 V, 50/60 Hz
Supply voltage tolerance -10% to +10%
Power input Maximum 1 VA standby; maximum 20 VA during operation
Action time ≤1 s
WiFi connectivity 802.11 b/g/n, 2.4 GHz
Mechanical life 10,000 operations
Electrical life Refer to the matched MCB, RCCB, or RCBO specifications
Operating temperature -20°C to +55°C
Storage temperature -35°C to +75°C
Mounting DIN rail, EN/IEC 60715
Protection degree IP20
Operating position Any
Overvoltage category III
Pollution degree 2
Maximum cable size Solid wire: 1 x 2.5 mm² or 2 x 1.5 mm²; with sleeve: 1 x 2.5 mm² (AWG 12)
Dimensions 82 x 18 x 78 mm
Weight 80 g

Compatible Accessories

Accessory Compatibility
Auxiliary contact Yes
Alarm contact Yes
Shunt release Yes
Undervoltage release Yes

GRD9L-W Application Videos

GRD9L-W + GYM9 2P C25

GRD9L-W + GYL9 2P 40A 30mA RCCB

FAQs

What does the GRD9L-W do?

It is a WiFi operating module that opens or closes a compatible MCB, RCCB, or RCBO through the Tuya Smart app. The matched breaker provides the circuit protection function.

Does it support 5 GHz WiFi?

No. The GRD9L-W supports 802.11 b/g/n 2.4 GHz WiFi. The phone used for setup should be connected to a 2.4 GHz network.

What is the difference between AUTO and MANU mode?

AUTO mode accepts opening and closing commands from the app. MANU mode disables app commands so the paired breaker can be operated locally.

Can the app set timed switching?

Yes. The product manual states that timed ON/OFF operation can be configured through the app.

Which breakers can be paired with the module?

The source documents show MCB, RCCB, and RCBO combinations, including GYM9 and GYL9 examples. Please provide the exact breaker model, poles, and specification so GEYA can confirm mechanical compatibility before ordering.

Who should install the GRD9L-W?

Installation and electrical connection should be completed by a qualified electrician in accordance with applicable electrical safety requirements. Confirm the supply voltage, AUTO/MANU setting, mechanical coupling, and downstream circuit condition during commissioning.

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