Tesla TMCBO416M 4 Pole 16 Amp 6kA Type A RCBO Safety Switch

Description

Sixteen amps, four poles. The commercial lighting and GPO circuit RCBO.

The Tesla TMCBO416M is a 4 Pole 16A 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. At 16A it is one of the most widely specified 4-pole RCBOs for three-phase lighting circuits and commercial power distribution in Australian commercial switchboards.

• 4 Pole (3P+N switched neutral) / 16A / 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.

The Standard 4-Pole RCBO for Commercial Lighting and Power

The 16A four-pole RCBO is a staple of Australian commercial switchboard work. Three-phase lighting distribution panels in offices, retail tenancies, hospitality venues, and commercial buildings routinely use 16A as the standard circuit rating — and AS/NZS 3000 compliance requires both overcurrent and earth leakage protection on these circuits. The TMCBO416M delivers both in a single 72mm device, with each circuit protected independently. A nuisance trip on one lighting circuit doesn't kill the rest of the board.

The 3P+N switched neutral configuration ensures complete isolation of all four conductors including neutral on trip — important on commercial installations where neutral disconnection is required for safe isolation. The Type A residual current characteristic handles both sinusoidal and pulsating DC fault currents from LED drivers, dimmable lighting systems, and modern electronic loads now standard in commercial fit-outs.

Termination and Installation

Clips straight onto 35mm DIN rail. Accepts conductors up to 25mm² and is compatible with both comb busbar and individual wiring configurations. At 72mm, four poles in one device take less space than a separate 4-pole MCB plus 4-pole RCD. IP20 is appropriate for any enclosed switchboard or distribution enclosure.

Q: Why use a 4-pole RCBO instead of a 4-pole MCB plus 4-pole RCD on a three-phase circuit?
A: A 4-pole RCBO combines both functions in one 72mm device — saving modules, simplifying wiring, and giving each circuit its own independent earth leakage protection. A shared 4-pole RCD protecting multiple MCBs will trip all circuits if any one circuit develops an earth fault. Individual RCBOs isolate only the faulty circuit, leaving the rest of the board operational.

Q: Is Type A earth leakage protection required for LED lighting circuits?
A: Type A is the recommended specification for circuits feeding LED lighting systems with electronic drivers, as LED drivers can generate pulsating DC fault currents that a Type AC device won't detect. The TMCBO416M Type A characteristic correctly covers these loads, making it the appropriate choice for modern commercial lighting switchboards.

Q: Is the Tesla TMCBO416M approved for use in Australian switchboards?
A: The TMCBO416M 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.