AO Models: Unregulated Incoloy Sheath With Brass 1" NPT Screw Plug Immersion Elements

Therm Coil AO Models

Incoloy Sheath Elements With Brass Screw Plug:

If in doubt about which materials are required for your application, please contact us at 1-724-872-5007 or rheinhold@thermcoil.com.

  • INCOLOY® Sheath with Brass Screw Plug (Silver Brazed): Our A-models with 45-56 watt density (W/IN.²) are for use in clean water, some marine environments including brackish water and seawater with moderate to low currents, and select mildly corrosive liquids (absolutely no hydroxides, cyanides, or oxidizing acids).

    Unregulated (No thermostat):

    • If you need this type of element but with temperature control, please see our EAO Models.

    Enclosure:

    • NEMA 1, General Purpose Enclosure: the default enclosure type.

                ●  Weather-Resistant Enclosures
                ●  Explosion-Resistant Enclosures (Also Dust & Weather-Resistant) 

    General Information:

    • Includes Thermowell: accommodates up to 3/8" DIA. sensing bulb.
    • Screw plug immersion heaters must be fully covered by your liquid to prevent heater failure. (Other medium applications are possible, but require factory consultation.)
    • All 240V models have the option to be operated at 208 VAC with a 25% reduction in wattage rating - see 'Model Specific Information' below.

    General Technical Specifications

    • Element Sheath Material: Incoloy 800
    • Quantity Of Elements: 2
    • Phasing: Single-Phase
    • Immersion Length: (C Dim.)
    • Terminal Connections: #10-32 Lug Terminals & Includes (3x) 7" Lead Wires
    • Screw Plug Size: 1" NPT
    • Screw Plug Material: Brass
    • Enclosure Type: NEMA 1 General Purpose
    • Thermowell Accommodates Sensing Bulb Size: .375" DIA.
    • Temperature Control Type: None
    • Temperature Control Range: N/A

    Model Specific Information:

    Model AO-1041:
    • 1,000W @ 240VAC (1-Phase)
    • 11" Immersion length (C DIM.)
    • Watt density of 55 W/IN.². 
    • If used at 208VAC, it operates at 751 W with a watt density of 42 W/IN.².
    Model AO-1541:
    • 1,000W @ 240VAC (1-Phase)
    • 11-3/8" Immersion length (C DIM.)
    • Watt density of 55 W/IN.².
    •  If used at 208VAC, it operates at 1,127 W with a watt density of 42 W/IN.².
    Model AO-2011:
    • 2,000W @ 120VAC (1-Phase)
    • 13-1/2" Immersion length (C DIM.)
    • Watt density of 56 W/IN.².
    Model AO-2041:
    • 2,000W @ 240VAC (1-Phase)
    • 13-1/2" Immersion length (C DIM.)
    • Watt density of 56 W/IN.².
    •  If used at 208VAC, it operates at 1,502 W with a watt density of 42 W/IN.².
    Model AO-3011:
    • 3,000W @ 120VAC (1-Phase)
    • 18" Immersion length (C DIM.)
    • Watt density of 56 W/IN.².
    Model AO-3041:
    • 3,000W @ 240VAC (1-Phase)
    • 18" Immersion length (C DIM.)
    • Watt density of 56 W/IN.².
    •  If used at 208VAC, it operates at 2,253 W with a watt density of 42 W/IN.².