GRD9L auto recloser modules are designed to work with MCB, RCCB and RCBO devices for remote opening, remote closing and automatic reclosing applications. The platform is used in grid terminal lines such as meter boxes, new-energy circuit management, PV control boxes, smart power systems, smart homes and charging-pile distribution circuits.
Control Versions
| Version | Control mode | Main function |
|---|
| GRD9L-C | Controlled by switch | Remote closing and opening of matched MCB, RCCB or RCBO devices. |
| GRD9L-D | Controlled by switch + auto reclosing | Switch control with automatic reclosing after tripping. |
| GRD9L-R | Auto reclosing + AUX | Automatic reclosing with auxiliary contact support for status or alarm indication. |
| GRD9L-S | Control through RS485 interface | Remote monitoring and switching through RS485 communication. |
Typical Combinations
- With GYM9 MCB: 1P, 2P, 3P and 4P auto recloser combinations.
- With GYL9 RCCB: 2P and 4P auto recloser combinations.
- With RCBO: auto recloser combinations for residual-current and overcurrent protection applications.
- With RS485 control: smart monitoring and switching combinations for MCB, RCCB or RCBO circuits.
Common Features
- Manual and automatic selector switch.
- Mechanical and electronic double locking function.
- Shaft transmission structure for stable operation.
- LED indication for operating status.
- Can be combined with auxiliary contact, alarm contact, shunt release and undervoltage release accessories.
- DIN rail mounting according to EN/IEC 60715.
- One-module module width for the recloser mechanism.
Common Technical Data
| Item | Data |
|---|
| Supply terminals | A1-A2 |
| DC voltage range | DC12V, DC24V to DC48V |
| DC power input | Maximum 1W standby, maximum 20W action |
| AC voltage range | AC220V, 50-60Hz |
| AC supply voltage tolerance | -10% to +10% |
| AC power input | Maximum 1VA standby, maximum 20VA action |
| Supply indication | Red LED |
| Action time | Not more than 1 second |
| Mechanical life | 10000 operations |
| Electrical life | 4000 operations under AC-1 |
| Operating temperature | -20C to +55C |
| Storage temperature | -35C to +75C |
| Protection degree | IP20 |
| Operating position | Any |
| Overvoltage category | III |
| Pollution degree | 2 |
| Maximum cable size | Solid wire maximum 1 x 2.5 mm2 or 2 x 1.5 mm2; with sleeve maximum 1 x 2.5 mm2, AWG 12 |
| Dimensions | 82 x 18 x 78 mm |
| Weight | 80 g |
Auto Reclosing Function
| Item | GRD9L-C | GRD9L-D / GRD9L-R | GRD9L-S |
|---|
| Auto reclosing times | Not applicable | 3 times | 3 times |
| Auto reclosing interval | Not applicable | 10s, 60s, 300s | 10s, 60s, 300s |
| Reset condition | Not applicable | No trip or manual reset within 15 minutes after successful closing | No trip or manual reset within 15 minutes after successful closing |
RS485 Version
- GRD9L-S supports remote control through an RS485 interface.
- It can remotely monitor switch status and remotely open or close the matched circuit breaker.
- The communication protocol document is provided separately for integration work.
