Trade Discount 25%
Water Heater Thermostat 60-80°C 30A Manual Reset Yellow Robertshaw
Robertshaw water heater thermostat features 60-80°C adjustable range, SPST 30A 240V contacts, and manual reset. Ideal for single-element hot water systems.
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Alternatively Known As: Robertshaw ST12-80K Hot Water Thermostat, Electric Water Heater Thermostat, EWT-1L2 Replacement Thermostat
Technical Specifications
- Model: ST12-80K
- Application: Single-element electric storage water heaters
- Temperature Range: 60°C to 80°C
- Switching: Automatic cycling SPST thermostat with DPST manual-reset high-limit cut-out
- Electrical Rating: 30A at 240V AC
- High-Limit Cut-Out: 84°C ± 5°C
- Differential: 8°C ± 4°C
- Maximum Rated Power: 7,200W at 240V AC
- Mounting: Surface mount with tank clamp
- Colour: Yellow
- Dimensions (H x L x W): 38mm x 95mm x 52mm
- Weight: 0.12 kg
Key Features
- Adjustable 60–80°C operating range
- Manual-reset high-limit protection
- Suitable for single-element hot water systems
- 30A switching capacity at 240V AC
- Automatic cycling control with snap-action operation
- Compact surface-mount design
- Replacement for Robertshaw EWT-1L2 series thermostats
Professional Installation Requirements
- Installation and electrical connection must be performed by a licensed electrician or suitably qualified hot-water technician. Isolate the 240V supply before service, follow the water-heater manufacturer's wiring instructions, and verify operation of the manual-reset high-limit protection after installation.
Applications
- Single-element electric storage water heaters
- Domestic hot-water cylinders and tanks
- Commercial electric water heaters using a compatible surface thermostat
- Replacement of compatible Robertshaw EWT-1L2 thermostats
Standards & Compliance
- AS 1308: Electric water heaters—thermostats and thermal cut-outs; applicable to thermostats and non-self-resetting thermal cut-outs used in storage water heaters.
- AS/NZS 3000: Electrical installations—relevant to the fixed wiring and electrical connection of the water heater.
- AS/NZS 3500.4: Plumbing and drainage, Part 4—Heated water services; relevant to the water-heater installation context. Product-specific certification was not identified.
Environmental Benefits
- Replaceable thermostat component can extend the service life of a compatible water heater and reduce whole-unit replacement waste.
- Accurate temperature control can help avoid unnecessary heating and support efficient hot-water operation.
- Compact metal and polymer component construction may be separated for appropriate end-of-life recycling where local facilities accept the materials.
Warranty Information
No product-specific ST12-80K warranty term was identified in the manufacturer material reviewed. Robertshaw publishes warranty terms for some thermostat ranges, but coverage varies by product and region; confirm applicable warranty conditions with the Australian distributor before purchase. ([robertshaw.com](https://www.robertshaw.com/pt/thermostat-warranty/?utm_source=openai))
Available Now
Available through Robertshaw and authorised Australian HVAC, plumbing and electrical distributors; confirm current stock and regional supply before ordering.
