Tesla TMCBO410M 4 Pole 10 Amp 6kA Type A RCBO Safety Switch

Description

Four poles, one device. Three-phase earth leakage and overcurrent combined.

The Tesla TMCBO410M is a 4 Pole 10A 6kA 30mA Type A RCBO built to AS/NZS 61009.1. It combines residual current (earth leakage) and overcurrent (circuit breaker) protection across all four conductors — 3P+N switched neutral — in a single 72mm DIN rail device. The compact all-in-one solution for three-phase circuits in commercial and industrial switchboards requiring both RCD and MCB protection without separate components.

• 4 Pole (3P+N switched neutral) / 10A / 6kA breaking capacity
• 30mA residual current trip — personal protection threshold
• Type A — detects sinusoidal and pulsating DC residual currents
• C Curve overcurrent trip — general-purpose, handles moderate inrush
• 415V AC three-phase / 50-60Hz
• DIN rail mount — 72mm footprint, 35mm rail
• Conductor up to 25mm² — compatible with comb and busbar systems
• IP20 rated for enclosed switchboard installation
• AS/NZS 61009.1
• Mechanical life: 10,000 cycles | Electrical life: 4,000 cycles
• Range: available 10A, 16A, 20A, 25A, 32A, 40A

Fast shipping across Australia — order online now for quick dispatch.

Three-Phase Protection in One Compact Device

In a standard three-phase switchboard, protecting a circuit with both overcurrent and earth leakage requires a separate 4-pole MCB and a 4-pole RCD — two devices, more modules, more wiring. The TMCBO410M combines both in a single 72mm device, providing independent circuit-level protection for three-phase plus neutral circuits without the space or cost of separate components. A trip on one RCBO-protected circuit doesn't affect other circuits on the board.

At 10A, the TMCBO410M suits lower-current three-phase circuits in commercial buildings, light industrial panels, and specialist equipment where the load is modest but combined RCD and MCB protection is required. The 3P+N switched neutral configuration ensures all four conductors — including neutral — are isolated on trip, providing full disconnection of the protected circuit.

Type A — Correct for Modern Electronic Three-Phase Loads

The Type A residual current characteristic detects both sinusoidal AC and pulsating DC fault currents — the types generated by variable speed drives, inverters, three-phase EV chargers, and other modern electronic equipment. For any three-phase circuit feeding electronically controlled equipment, Type A is the correct specification over Type AC.

Q: What is the difference between a 4-pole RCBO and a separate 4-pole MCB plus 4-pole RCD?
A: A 4-pole RCBO combines both overcurrent and residual current protection in a single device — saving switchboard space and simplifying wiring. A separate MCB and RCD combination requires two devices and more modules. The RCBO also provides per-circuit independent earth leakage protection — a fault trip on one circuit doesn't affect other circuits sharing a common RCD, as can happen with a standalone RCD protecting multiple MCBs.

Q: Is the TMCBO410M approved for use in Australian switchboards?
A: The TMCBO410M is built to AS/NZS 61009.1 and is suitable for use in compliant Australian commercial and industrial switchboard installations. Confirm the applicable approval number with Tesla Electrical Components or your wholesaler prior to specification on regulated sites.

Q: What does "switched neutral" mean on a 4-pole RCBO?
A: Switched neutral (3P+N) means the neutral conductor is also broken on trip — providing complete isolation of all four conductors including neutral when the device trips or is switched off manually. This is important for safety and compliance in three-phase circuits where a disconnected neutral alone could leave hazardous voltages present on the circuit.