RCD Trip-Time Reference Card
Maximum trip times and testing intervals under AS/NZS 3760 — the numbers electricians and site managers check most often, in one place.
| RCD type | Must trip within |
|---|---|
| Type II (30 mA) | 300 ms |
| Type I (10 mA) | 40 ms |
| RCD type | Push-button interval |
|---|---|
| Portable RCDs | Every 3 months (construction/high-risk: daily or before each use, whichever is longer) |
| Fixed RCDs (switchboard) | Every 6 months |
| RCD type | Trip-time interval |
|---|---|
| Portable RCDs | Every 6 months (construction: 3 months; some low-risk 12 months) |
| Fixed RCDs — commercial / industrial | Every 12 months |
| Fixed RCDs — residential-type / low-risk | Up to 2 years |
Please note: These intervals are indicative, based on AS/NZS 3760:2022 (Table 2.4) and related standards. They are minimum recommendations — your actual interval must be set by a documented risk assessment for your specific site and may be shorter. This is general guidance only and is not a compliance determination for your workplace. Contact us for a site-specific assessment.
Not sure which interval applies to your site, or want the equipment testing intervals too? Try theInterval Checker, or read more onRCD & safety-switch testing.
Overdue for a trip-time test?
Tell us how many switches and where — we'll come back with a straight quote, promptly.
- Instant online quote for test & tag
- Booked in as soon as we can fit you in
- Certificate + asset register within 24h of completion
RCD & Safety-Switch Testing
Push-button and trip-time testing on fixed and portable safety switches, to AS/NZS 3760.
Get a quote