The TBC E-145NR is a high-power double pole switch engineered to meet the demanding requirements of modern electrical installations. Part of the TBC E-Series switch range, it delivers a robust 45A rated current at 250V AC, making it ideally suited for isolating heavy-duty appliances including water heaters, air conditioners, and instant water heaters.
Constructed with a flame-retardant polycarbonate panel and heavy-duty copper contacts, the E-145NR combines long-term mechanical reliability with enhanced electrical safety. Its self-locking switch mechanism and built-in neon indicator light provide clear operational status at a glance, reducing the risk of accidental energisation.
Designed for concealed installation within an 86 x 86 mm form factor, the E-145NR suits residential apartments, hotels, offices, and commercial buildings where both performance and aesthetic finish are essential.
The TBC E-145NR High Power Double Pole Switch is purpose-built for electrical installations that demand reliable, high-current switching performance. Its double pole configuration ensures that both the live and neutral conductors are simultaneously isolated when the switch is turned off, providing a true break in the circuit and a higher level of safety compared to single pole alternatives. This makes it the preferred choice for appliances such as water heaters, air conditioners, and instant water heaters where complete isolation is a safety requirement.
The switch housing is manufactured from flame-retardant polycarbonate, a material selected for its excellent dielectric properties, mechanical strength, and resistance to elevated temperatures. The heavy-duty copper contacts are precision-engineered to maintain low contact resistance across the rated service life, ensuring consistent performance even under repeated high-current switching cycles. The self-locking mechanism provides positive tactile feedback and mechanical stability in both the ON and OFF positions.
With compact 86 x 86 x 25 mm dimensions and a concealed mounting design, the E-145NR integrates seamlessly into standard wall installations across residential, hospitality, and commercial environments, offering both functional reliability and a modern aesthetic finish.
The TBC E-145NR operates as a mechanically actuated double pole switch utilising a self-locking rocker mechanism that maintains contact position under load without requiring continuous manual force. The switching contacts are fabricated from heavy-duty copper alloy, selected for high electrical conductivity and resistance to contact welding under inrush current conditions typical of resistive and inductive high-power loads. The integrated neon indicator circuit provides a low-power visual status signal independent of the main switching contacts.
The flame-retardant polycarbonate enclosure meets the requirements of IEC 60669-1 and provides IP20 ingress protection, making the unit suitable for dry indoor environments. Operating frequency is compatible with both 50 Hz and 60 Hz supply systems, supporting deployment across international markets. The concealed mounting configuration accommodates standard back-box depths, simplifying integration into new and retrofit wiring installations.
| Model | E-145NR |
|---|---|
| Product Type | Double Pole Switch |
| Rated Current | 45A |
| Rated Voltage | 250V AC |
| Frequency | 50/60 Hz |
| Number of Poles | 2 (Double Pole) |
| Switch Type | Self-Locking |
| Indicator | Neon Indicator Light |
| Mounting Type | Concealed |
| Panel Material | PC Flame Retardant |
| Protection Degree | IP20 |
| Standards Compliance | IEC 60669-1 |
| Height | 86 mm |
| Width | 86 mm |
| Depth | 25 mm |