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Rittal 3105 Series PTC Enclosure Heater with Integrated Fan, IP 20
Model: RIT-3105
Rittal 3105 Series PTC Enclosure Heater with Integrated Fan, IP 20The Rittal 3105 Series PTC Enclosure Heater with Integrated Fan is engineered to regulate relative humidity, prevent internal...
Rittal
Starting at
$586.61
Rittal 3105 Series Fanless PTC Enclosure Heater, Anodized Aluminum, IP20
The Rittal 3105 Series Fanless PTC Enclosure Heater regulates relative humidity inside electrical enclosures, keeping internal temperatures above the dew point to stop condensation before it forms. Built from anodized aluminum with an IP 20 protection rating (per IEC 60 529 and EN 60 529), this fanless design is available in continuous thermal outputs of 10 W, 20 W, 30 W, and 150 W to match enclosures of different sizes. Rated for 110 V - 240 V, 1~, 50 Hz/60 Hz operation, it helps prevent the corrosion and electrical short circuits that condensation inside an enclosure can cause.
Key Features
- Available Heating Outputs: 10 W, 20 W, 30 W, and 150 W continuous thermal output options to match enclosure size and stop condensation.
- Durable Construction: Anodized aluminum housing for long-lasting performance in enclosure environments.
- Fanless Design: Quiet, low-maintenance condensation control with no moving parts.
- Rated Operating Voltage: 110 V - 240 V, 1~, 50 Hz/60 Hz for broad compatibility.
- Protection Rating: IP 20 (IEC 60 529 / EN 60 529), Protection Class II (total insulation).
- Operating Temperature Range: -33 °C to 65 °C for use across demanding enclosure conditions.
- Complete Supply Package: Includes fasteners, PTC heater, and a quick-connection terminal for straightforward installation.
Certifications & Compliance
- IP 20 Protection Rating (IEC 60 529 / EN 60 529)
- Protection Class II (Total Insulation)
Technical Specifications
- Refer to manufacturer documentation for complete technical specifications.
Typical Applications
- Electrical and Industrial Enclosure Climate Control
- Condensation and Corrosion Prevention in Cabinets
- Panelboard and Control Cabinet Protection
- Outdoor and Variable-Temperature Installations
- Pairing with Thermostats or Hygrostats for Precision Humidity Control
Why Rittal?
Rittal enclosure heaters in the 3105 Series use anodized aluminum construction and an IP 20-rated, double-insulated Protection Class II design to deliver dependable, code-conscious climate control inside electrical enclosures across a 10 W to 150 W output range. Pairing a unit with a thermostat or hygrostat, as Rittal recommends, enables precise temperature and humidity regulation, and larger enclosures can use several low-output heaters for even heat distribution. Choose Rittal for enclosure heating engineered to protect sensitive electrical components from moisture-related damage.
Manufacturer Resources
Rittal Product Catalog
Product Specs
- Product Type:
- Enclosure Climate Control
- Product Finish:
- Anodized
- Product Material:
- Anodized Aluminum
- Department:
- Electrical
- Product Group:
- Boxes & Enclosures
- Voltage Rating:
- 110-240V
- Configuration:
- Fanless
- Standards:
- IP20, IEC 60529, EN 60529
- Product Subgroup:
- Enclosure Accessories
Rittal 3105310 – Frequently Asked Questions
1) Which wattage Rittal 3105 enclosure heater do I need for my cabinet?
The Rittal 3105 Series comes in four continuous thermal outputs: 10 W (model 3105310), 20 W (3105320), 30 W (3105330), and 150 W (3105370). Pick the output to the enclosure volume, since the heater's job is only to hold the interior above the dew point rather than warm the cabinet. For large enclosures Rittal's guidance is to use several low-output units rather than one big one, so the heat spreads evenly instead of stratifying at the top.
2) Can I run a Rittal 3105 heater on 120V, or does it need 240V?
Either. The 3105 Series is rated 110 V to 240 V, single phase, 50/60 Hz, so the same unit works on a North American 120 V control circuit or a 230/240 V supply without changing part numbers. Output is PTC-based, so the element self-limits rather than relying on a thermal cutout.
3) Is an IP20 enclosure heater safe to mount in an outdoor panel?
IP20 (per IEC 60529 and EN 60529) means the heater is finger-safe against solid objects but has no water ingress protection, so it belongs inside a sealed enclosure, not exposed to weather. That is the normal application: the 3105 mounts inside the cabinet and the cabinet's own rating keeps water out. It is Protection Class II, totally insulated, so no separate ground connection to the heater body is required.
4) Do I need a thermostat with the Rittal 3105 heater, or does it regulate itself?
The PTC element self-limits its own surface temperature, but it does not switch itself off based on cabinet conditions. Rittal recommends pairing the heater with a thermostat or a hygrostat so it only runs when the enclosure drops toward the dew point or humidity climbs. The thermostat or hygrostat is a separate order; the heater ships with fasteners, the PTC heater itself, and a quick-connection terminal.
5) What comes in the box with a Rittal 3105 enclosure heater?
Supply includes the PTC heater, mounting fasteners, and a quick-connection terminal for the wiring. You supply the field wiring and, if you want cycling control, a thermostat or hygrostat.
6) How cold can it get before a Rittal 3105 heater stops working?
Operating range is -33 C to 65 C, which covers unheated outdoor cabinets, cold storage rooms, and hot machine rooms. That range is why these go into pump stations, remote telemetry cabinets, and outdoor control panels where swing between day and night drives condensation.
7) Fanless or fan-assisted enclosure heater, which should I use?
The 3105 is the fanless type: no moving parts, nothing to fail, and silent, which suits tight enclosures and quiet occupied spaces. It works by convection, so heat rises from the unit and you depend on cabinet geometry for distribution. A fan-assisted heater moves air and evens out temperature in a densely packed or tall cabinet, at the cost of a motor and filter maintenance. For straight condensation prevention in a small to mid-size panel, fanless is the usual choice; for even temperature across a large populated cabinet, either go fan-assisted or stack multiple low-wattage 3105 units.
8) Will an anodized aluminum heater hold up in a humid or washdown-area control cabinet?
The housing is anodized aluminum, which resists the corrosion that moist enclosure air causes. Bear in mind the heater itself is IP20, so it needs to sit inside a cabinet that keeps the washdown spray out; the heater's role is to hold the interior above dew point so condensation never forms on the components or the bus.
How fast can I get the Rittal 3105310 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Rittal 3105310 come with a warranty?
Absolutely. The Rittal 3105310 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Rittal 3105310?
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