Products
The Solid State Seismic Shutoff — MK6 is available in two variants to suit different power supply arrangements. Both share the same electronic sensing, field-adjustable sensitivity, and relay output configuration. Contact us for pricing, availability, and lead times.
MK6 — AC Supply with Internal Battery Backup
For buildings and facilities with standard mains power. The internal NiCad battery maintains correct operation for up to 24 hours under mains failure — ensuring the system remains active through a power outage following an earthquake.
| Power supply | 230V AC |
| Battery backup | Up to 24 hours under mains failure |
| Sensitivity | Switch-selectable — 0.012, 0.025, 0.05, 0.1, 0.2g |
| Relay output | 2 changeover contacts |
| Relay hold | De-energised 8 seconds after last threshold exceedance |
| Event logging | 6-digit activation counter |
| USB port | Configuration and data recovery |
| Included | Operators manual |
Suited to: commercial buildings, apartments, hospitals, schools, public facilities, industrial plant rooms.
MK6 — DC Supply (No-Break Power)
For remote, substation, and battery-backed installations where mains supply cannot be guaranteed. Accepts a wide range of DC input voltages from a no-break power supply — no internal battery required.
| Power supply | 12, 24, 110, or 230V DC from a no-break power supply |
| Battery backup | None — no-break supply provides continuity |
| Sensitivity | Switch-selectable — 0.012, 0.025, 0.05, 0.1, 0.2g |
| Relay output | 2 changeover contacts |
| Relay hold | De-energised 8 seconds after last threshold exceedance |
| Event logging | 6-digit activation counter |
| USB port | Configuration and data recovery |
| Included | Operators manual |
Suited to: gas distribution networks, pressure reduction stations, utility substations, remote installations, battery-backed plant.
Accessory — Replacement Battery
Replacement NiCad battery for the AC variant. Contact us for pricing.
Lead times and supply
Lead time is typically one to six weeks depending on quantities. We supply direct to electrical contractors, building services companies, utilities, and public sector organisations across New Zealand and Australia.
Contact us for pricing and availability →
Not sure which variant you need?
If you're unsure whether the AC or DC variant is right for your installation, we're happy to help. Get in touch with your power supply details and we'll point you in the right direction.
Contact us → | Full technical specifications, installation, and wiring details →
Electrical wholesaler or trade supplier? Find out about trade and wholesale arrangements →