BBS350CT
CT-powered Wireless Busbar Temperature SensorA self-powered wireless sensor that harvests energy from the magnetic field around the busbar, so there's no battery to replace. It monitors critical temperature points on metal and insulated surfaces of current-carrying components, from LV panels up to 66 kV switchgear.
- Powered by induction from the busbar current, starting from 4 A
- Measures -40°C to 150°C, ±0.5°C accuracy from 0 to 85°C
- Retrofit metal strap fits busbars, breakers and cables without drilling
- AES-128 encrypted, with ≥ 99% packet delivery
Self-powered temperature monitoring for live conductors
The BBS350CT monitors critical temperature points on both metal and insulated surfaces of current-carrying components. It harvests energy from the magnetic field around the busbar (a minimum current of 4 A is needed), so it needs no external power source or battery.
It measures accurately up to 150°C and transmits wirelessly to BBC969-485RC and BBC969-27C controllers. A compact, rugged enclosure suits demanding industrial environments, including switchgear, electrical panels and manufacturing facilities.
Its wireless, low-maintenance design is quick to deploy and keeps lifecycle maintenance to a minimum, making it ideal for continuous condition monitoring, early detection of abnormal temperature rise and preventive maintenance of critical connections.
How it works
- Energy harvestingThe sensor draws its power by induction from the current flowing in the conductor, starting at 4 A.
- Smart samplingTemperature is sensed every 20 seconds and sent every minute by default, with events recorded as they happen.
- Reliable wireless linkUp to 10 m inside panels or 50 m line of sight, AES-128 encrypted, with ≥ 99% packet delivery.
- Remote configurationOperational parameters can be updated through the gateway, with no need to open the panel.
| General | |
|---|---|
| Model number | BBS350CT |
| Product type | Sensor & RF transmitter |
| Sensor type | Digital temperature sensor (internally calibrated) |
| Mounting | Strap-on, on a flat clean surface of busbars, breakers or cables |
| Installation location | Electrical panels, switchgear, MCC panels, control panels |
| Installation voltage range | 0.4 kV (LV) up to 66 kV (HV) |
| Enclosure | PA66 enclosure, metal strap |
| Power supply | Induction CT-powered, starting current ≥ 4 A |
| Service life | 10 years |
| Measured values | |
| Temperature range | -40°C to 150°C |
| Temperature accuracy | ±0.5°C (0–85°C), ±0.75°C (above 85°C) |
| RSSI | Reported in dBm |
| Communication | |
| Communication range | 10 m (panel installation), 50 m line of sight |
| Frequency | 865–926 MHz |
| Transmission interval | 1 minute default; temperature sensed every 20 seconds, with event recording |
| Antenna | Inbuilt |
| Supported controllers / gateway | BBC969-485RC, BBC969-27C, AMP-IoTG |
| Packet delivery | ≥ 99% under nominal network conditions, gateway-based time synchronisation |
| Remote configuration | Operational parameters updated via gateway communication |
| Data encryption | AES-128 |
| Mechanical | |
| Dimensions (L × W × H) | 26 × 23 × 13 mm, with 300 mm metal strap |
| Weight | 15 g (without accessories) |
Fit it once, forget about batteries
Powered by the busbar current itself, with a 10-year service life and minimal lifecycle maintenance.
Suitable for installations from 0.4 kV up to 66 kV, with a temperature range up to 150°C.
The metal strap fits flat surfaces of busbars, breakers and cables, with no drilling or busbar changes.
≥ 99% packet delivery, AES-128 encryption and remote parameter updates through the gateway.
Supported controllers and gateway
Panel-mount controller with a colour display, buzzer and two alarm relays.
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DIN-rail receiver that sends sensor data over RS485 Modbus to SCADA, PLC or BMS.
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4G gateway that sends sensor data to the cloud for dashboards and alerts.
View productMonitor every live connection, battery-free
Tell us about your switchgear and panels, and we'll plan the right sensors, receivers and integration for your site.
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