• TOMZN RCBO Residual Current Circuit breaker with over current and Leakage protection in Bangladesh
• The TOMZN TOB1L-63H RCBO is a 2-pole (2P) residual current circuit breaker with over-current protection (MCB function) and leakage protection (RCD function). It’s designed to protect both line (L) and neutral (N) wires in residential and industrial electrical installations.

🔧 Key Specifications:

• Specification Description
• Model TOB1L-63H
• Brand TOMZN
• Poles 2P (Phase + Neutral)
• Rated Current (In) 63A
• Rated Voltage (Ue) 230V AC
• Frequency 50Hz / 60Hz
• Residual Operating Current 30mA (typical, adjustable in some models)
• Breaking Capacity 6kA
• Tripping Characteristic Type C (standard usage, handles moderate inrush currents)
• Protection Overcurrent, Short Circuit, Earth Leakage
• Mounting DIN Rail 35mm (standard)
• Cut-off Cuts both L (Live) and N (Neutral) during fault condition
• Application Residential, commercial, and light industrial usage

⚙️ Features:

✅ RCBO (Residual Current Breaker with Over-current): Combines the functionality of MCB + RCD in one compact unit.

✅ Double-pole Cut-off (L+N): Enhances safety by disconnecting both lines during faults.

✅ Quick Trip Response: Responds rapidly to ground fault or overload.

✅ Compact DIN rail design: Easy installation inside distribution boards.

✅ Fire and shock protection: Provides added protection against electrical fires and electrocution.

✅ High sensitivity: Can detect leakage as low as 30mA.

🏠 Use Case Scenarios:

• Household electrical circuit protection
• Air conditioner or geyser line protection
• Solar inverter AC output protection
• Small office distribution board
• Shops and light commercial spaces

⚠️ Important Note:

• Always install RCBOs with correct wiring and grounding.
• Make sure the selected current rating suits your load.
• It is recommended to install by a qualified electrician.

• TOMZN Residual Current Breaker with Overcurrent Protection.

Warranty: 6 Months (Except Burn & Physical Damage)

• Made in China