Tesla TMCBO432M 4 Pole 32 Amp 6kA Type A RCBO Safety Switch

Description

Thirty-two amps, four poles. Heavy plant, mining circuits, large sub-mains.

The Tesla TMCBO432M is a 4 Pole 32A 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 32A it is the specialist choice for heavy industrial plant requiring mandatory earth leakage protection, mining equipment circuits, and large three-phase sub-main incomers where combined RCD and MCB protection is required by Australian site safety standards.

• 4 Pole (3P+N switched neutral) / 32A / 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.

Heavy Plant and Mining — Where Mandatory RCD Compliance Meets High Current

The 32A four-pole RCBO is where industrial load requirements and mandatory earth leakage compliance converge. On Australian mine sites and heavy industrial facilities, RCD protection on three-phase equipment circuits is often a site safety requirement — not optional. At 32A, the TMCBO432M handles heavy plant loads that exceed the 25A rating while delivering Type A 30mA earth leakage protection in a single 72mm device. The 3P+N switched neutral configuration ensures all four conductors including neutral are isolated on trip — a requirement on many regulated industrial and mining installations.

As a sub-main RCBO, the 32A rating is also commonly used on large three-phase sub-main feeds to downstream distribution boards where both overcurrent and earth leakage protection are required on the incoming circuit — consolidating two separate 4-pole devices into one and simplifying the switchboard layout.

Type A — Essential for Large VSD and Mining Equipment

Large variable speed drives, heavy mining machinery with electronic controls, and high-power industrial plant generate pulsating DC fault currents at levels that a Type AC RCBO will not detect. The TMCBO432M's Type A characteristic detects both sinusoidal and pulsating DC residual currents — the mandatory specification for circuits feeding large electronic drive systems on Australian mine sites and heavy industrial installations.

Q: Is mandatory RCD protection required for three-phase equipment on Australian mine sites?
A: Yes — Australian mine site safety regulations (state-based mining acts and AS/NZS 2381, AS/NZS 3000) generally mandate RCD protection on portable and fixed equipment circuits on mine sites. The specific requirements vary by state and site. The TMCBO432M provides both overcurrent and Type A earth leakage protection in a single 4-pole device — confirm site-specific requirements with the mine site electrical supervisor and relevant state authority.

Q: When should I use a 32A 4-pole RCBO instead of a 25A?
A: Choose 32A when the calculated three-phase circuit load or cable sizing exceeds 25A — typically for heavier industrial plant, larger VSD-driven equipment, or sub-main feeds where the 25A TMCBO425M is insufficient. Always confirm sizing against equipment rated input current and AS/NZS 3000.

Q: Is the Tesla TMCBO432M approved for use in Australian switchboards?
A: The TMCBO432M 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 mine sites and industrial facilities.