TELTONIKA RCBO type A, 3P+N

In commercial and industrial electrical panels, residual current protection with overcurrent safeguarding is essential for circuits feeding three-phase equipment and neutral-connected loads. The Teltonika RCBO Type A, 3P+N combines both functions in a compact 4-module DIN rail device, rated at 32 A with 30 mA residual sensitivity and C-curve tripping. It protects against overload, short-circuit, and earth leakage currents including pulsating DC components, ensuring compliance with IEC/EN 61009-1.

Key specifications

• Type: RCBO (Residual Current Breaker with Overcurrent Protection)
• Poles: 3P+N (three-phase + neutral)
• Residual current type: Type A (AC and pulsating DC sensitive)
• Rated current (In): 32 A
• Rated residual operating current (IΔn): 30 mA
• Tripping curve: C
• Rated voltage: 230/400 V AC
• Rated short-circuit capacity (Icn): 6 kA
• Frequency: 50/60 Hz
• Mounting: DIN rail
• Width: 4 modules (72 mm)
• Terminal capacity: 1–25 mm²
• Degree of protection: IP20 (terminals)
• Operating temperature: -25°C to +55°C
• Electrical endurance: 10,000 cycles
• Mechanical endurance: 20,000 cycles
• Standards: IEC/EN 61009-1
• Indication: Mechanical trip indicator

Why choose it

This RCBO provides combined protection in a single unit, reducing wiring complexity and panel space compared to separate MCB and RCD. Type A sensitivity ensures detection of pulsating DC residual currents common in modern electronic loads. The C-curve handles moderate inrush currents from motors and lighting, while 6 kA breaking capacity suits most commercial installations. Screw terminals accommodate solid or stranded conductors up to 25 mm² for reliable connections.

Ideal use cases

• Protection of three-phase circuits with neutral in distribution boards
• Commercial buildings with mixed loads including LED lighting and IT equipment
• Industrial control panels requiring combined earth leakage and overcurrent protection
• Upgrade of existing installations to meet current safety regulations

Good to know

The device mounts on standard 35 mm DIN rail and occupies 4 modules (72 mm width). It features a mechanical trip indicator for quick fault identification. Operating temperature range is -25°C to +55°C, making it suitable for a wide range of environments. Always install by qualified personnel in accordance with local wiring regulations.