Overview
ASD100L is a compact status indicator for 3-35kV indoor switchgear. It displays breaker, disconnector, earthing switch, and spring positions via a dynamic LED mimic diagram. With 8 digital inputs for auxiliary contacts, it provides reliable visual feedback without measurements. Panel mounting with small cut-out suits retrofit or new panels in substations and industrial facilities.
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Reliable Power Supply
- AC85-265V / DC100-300V wide range
- Power consumption <5VA
- No battery, maintenance-free
- Power-off status retention
Clear Status Indication
- High-brightness LEDs
- Breaker ON/OFF indication
- Trolley work/test position
- Earthing switch & spring status
Easy Installation & Maintenance
- Panel flush mounting
- Cut-out: 73×161 mm
- Rear terminal wiring
- No configuration required
Robust & Durable Design
- Industrial grade components
- Operating temp -10～55℃
- MTBF ≥50,000 hours
- Front panel IP40 protection
Function
| Function | Description |
| Mimic Diagram | Dynamic LED display showing primary circuit components: breaker, disconnector (trolley), earthing switch, spring charging. |
| Digital Inputs | 8 opto-isolated inputs for acquiring auxiliary contacts of switchgear devices. |
| Status Indication | High-brightness LEDs indicate ON/OFF positions: red for closed, green for open. |
| Spring Charge Ind. | Dedicated LED for spring energy status (optional, if supported by the ordered model). |
| Self–check | Power-on self-test verifies LED functionality. |
| Operating Voltage | AC85-265V or DC100-300V, universal for most control voltages. |
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Specification
| Parameter | Value |
| Auxiliary Power | AC 85～265V or DC 100～300V |
| Power Consumption | ≤5 VA |
| Digital Inputs | 8 opto-isolated (passive contacts) |
| LED Indications | Breaker, trolley, earthing switch, spring (customizable) |
| Operating Temperature | -10℃ ～ +55℃ |
| Relative Humidity | ≤95% (no condensation) |
| MTBF | ≥50,000 hours |
| Dimensions (W×H×D) | 82 mm × 184 mm × 36 mm |
| Panel Cut–out | 73 mm × 161 mm |
| Mounting | Panel flush mounting |
| Weight | Approx. 0.5 kg |
| Front Panel Protection | IP40 |
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FAQ
No. ASD100L only indicates switch positions (breaker, trolley, earthing switch). For live voltage display, please consider ASD100G or ASD200 models.
No. ASD100L is a pure status indicator without RS485 or other communication ports. For remote monitoring, please choose ASD200/300/320 series.
The LED mapping of ASD100L is factory-configured according to user requirements and cannot be changed on site. Please provide the single-line diagram and contact definitions when ordering.
After auxiliary power loss, all LEDs turn off. Upon power restoration, the device automatically resumes displaying the current switch positions without manual intervention.
It is suitable for various 3~35kV indoor switchgear, including centrally installed, trolley, fixed, and ring main units, provided the panel cut-out meets 73×161 mm.
Summary
ASD100L delivers essential switchgear status indication at low cost. Bright LEDs ensure clear visibility, wide-range AC/DC power suits various voltages, and simple installation saves time. With no moving parts and industrial reliability (MTBF ≥50,000h), it enhances safety by preventing misoperations. Ideal for projects needing straightforward visual monitoring.
