Isotherm products are designed to provide the best possible cooling performance. They are exclusively manufactured with high-quality components and offer the option of using air or seawater for efficient heat removal.
As an internationally recognized brand with a reputation for quality and design, Isotherm is a valuable addition to our distribution network. Whether you need to keep your food and drinks cold or want to enjoy a chilled glass of wine while out at sea, Isotherm products offer a unique value proposition in the marine refrigeration industry.

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1-2 weeks delivery time The Isotherm SEG00035DA is a Danfoss EMI 101N0220 electrical unit for BD35F and BD50F compressors. It provides stable 12/24 V operation while reducing radio-frequency interference (RFI), ensuring clean electrical performance and reliable compressor function in marine refrigeration systems. |
$ 428.82
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1-2 weeks delivery time The Isotherm SEG00059KA is a complete 230 V / 50 Hz electronic card kit with protective housing for DR70, DR100, DR160 Combo IM refrigerators and systems using the IM BI29 module. It supplies stable AC control, compressor management, and system protection, serving as a direct OEM replacement for damaged or non-operational AC electronic units. |
$ 306.30
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1-2 weeks delivery time The Isotherm SEG00060AB is a complete black plastic electronic-unit box for DR16, DR30 and BI16 refrigeration systems. It includes the control electronics, integrated fuse protection, and prewired cables, providing a direct OEM replacement that restores power distribution, compressor control, and safety functions in compact drawer and built-in refrigerators. |
$ 218.25
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1-2 weeks delivery time The Isotherm SEG00065KA is a 115 V / 60 Hz electronic card kit supplied with a protective housing for DR70, DR100, DR160 Combo IM refrigerators and IM BI29 systems. It ensures stable AC operation, compressor control, and system protection, providing a reliable OEM replacement for failed AC electronic modules in North American–voltage installations. |
$ 321.62
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1-2 weeks delivery time The Isotherm SEG00068AA is a reprogrammed SW B 1.005 electronic unit designed for DR42, DR49 and DR65 (Series II) refrigerators. It restores optimized control logic, stable compressor operation, and updated system behavior, providing a ready-to-install OEM replacement for faulty or outdated electronic modules. |
$ 478.60
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1-2 weeks delivery time The Isotherm SEG00070DA is a 12/24 V Secop BD Micro AM electronic unit (LC14B, ICECO version) designed for compact refrigeration systems. It provides stable compressor control, optimized startup behavior, and reliable low-voltage operation for BD Micro–based cooling units installed on marine and mobile applications. |
$ 375.22
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1-2 weeks delivery time The Isotherm SEH00016GA is a universal AC 110–240 V power supply with a dedicated connector for the Divino The One refrigerator. It provides stable AC input, automatic voltage adaptation, and safe power delivery for reliable operation when connected to shore power or household mains. |
$ 260.36
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1-2 weeks delivery time The Isotherm SEH00017HA is a 108 W universal AC power pack (100–240 V AC, 50/60 Hz) with an EU plug delivering regulated 24 V DC output for Secop/Danfoss BD35F and BD50F compressor systems. It ensures stable mains-powered operation, automatic voltage adaptation, and safe AC input for marine refrigeration units. |
$ 231.13
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1-2 weeks delivery time The Isotherm SEH00018HA is a 108 W universal AC power pack (100–240 V AC, 50/60 Hz) with a USA plug, supplying stable 24 V DC output for Secop/Danfoss BD35F and BD50F compressor systems. It ensures reliable shore-power operation, automatic voltage adaptation, and clean DC power delivery for marine refrigerators and freezers. |
$ 252.70
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1-2 weeks delivery time The Isotherm SEH00019HA is a 108 W universal AC power pack (100–240 V AC, 50/60 Hz) equipped with an Australian (AU) plug and providing a stable 24 V DC output for marine refrigeration systems using Secop/Danfoss BD35F and BD50F compressors. It ensures reliable shore-power operation, clean DC supply, and automatic voltage adaptation. |
$ 290.99
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1-2 weeks delivery time The Isotherm SEH00020HA is a 108 W universal AC power pack (100–240 V AC, 50/60 Hz) with a UK plug, supplying a regulated 24 V DC output for Secop/Danfoss BD35F and BD50F compressors. It ensures stable mains operation, automatic voltage adaptation, and reliable shore-power functionality in marine refrigeration systems. |
$ 290.99
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1-2 weeks delivery time The Isotherm SFA00019AA is a junction tube designed for the solenoid valve used in IM White refrigeration systems. It provides a precise, leak-resistant connection between the solenoid valve and the cooling circuit, ensuring stable refrigerant flow and correct system operation. |
$ 38.29
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1-2 weeks delivery time The Isotherm SFB00003AB kit includes UTV male-male 1/2" × 1/2" G countersunk brass nipples supplied with a sealing ring and retaining nut. It provides secure, corrosion-resistant threaded connections for marine hot-water and freshwater plumbing circuits where a compact, countersunk coupling is required. |
$ 111.04
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1-2 weeks delivery time The Isotherm SFC00004AA is a 90-degree G1/2" water connector designed for Shurflo pumps and marine plumbing circuits. It provides a compact angled interface for tight installation spaces, ensuring secure threaded coupling, optimal hose routing and leak-free water flow in onboard freshwater systems. |
$ 30.63
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1-2 weeks delivery time The Isotherm SFC00013AA is a 90-degree female bend with a G1/2" threaded inlet and a 21 mm hose connection. Designed for marine freshwater and hot-water plumbing, it provides a compact, corrosion-resistant angled interface for routing hoses in tight spaces while ensuring a secure, leak-free connection. |
$ 61.26
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1-2 weeks delivery time The Isotherm SFD00001AA is a TP39546 valve kit designed for Magnum sea water pumps. It restores correct valve operation, ensures proper water flow and pump efficiency, and provides marine-grade replacement components for maintaining cooling performance in water-cooled Magnum refrigeration systems. |
$ 103.38
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1-2 weeks delivery time The Isotherm SFD00024LA is a 230V hot gas coil (50/60 Hz) designed for marine refrigeration units. It controls the hot-gas bypass function within the cooling circuit, ensuring stable defrosting performance and reliable refrigerant flow regulation in 230V-powered onboard refrigeration systems. |
$ 80.41
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1-2 weeks delivery time The Isotherm SFD00029AA is a brass 6.0 kp/cm² safety valve (-06 version) designed for marine hot-water systems. It provides automatic over-pressure protection by releasing excess internal pressure, ensuring safe heater operation and preventing tank or plumbing damage in onboard installations. |
$ 57.44
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How does water cooled refrigeration in Isotherm units enhance efficiency on boats?
Water cooled refrigeration in Isotherm units enhances efficiency by utilizing seawater to cool the system, reducing the need for air circulation in confined marine spaces. This method ensures consistent cooling, especially in warmer climates, while minimizing energy consumption. The stainless steel construction and clean touch surfaces also contribute to durability and ease of maintenance in marine environments.
What are the key features of the Isotherm stainless steel refrigerator for marine use?
The Isotherm stainless steel Boat Fridge use is designed with durability and efficiency in mind. Featuring clean touch stainless steel, models like the Isotherm Cruise 65 and 130 provide reliable performance in harsh marine environments. Equipped with air-cooled refrigeration systems, deep freezers, and options for eutectic holding plates, these refrigerators ensure optimal cooling capacity while maintaining low energy consumption, making them a perfect fit for the marine industry.
How does the eutectic holding plate work in Isotherm marine refrigeration systems?
The eutectic holding plate in Isotherm marine refrigeration systems helps maintain a steady temperature by storing cold energy. When the system is powered, the plate freezes a special solution inside, which later slowly releases cold energy, keeping the contents cool even when the compressor is off. This feature, found in models like the Isotherm Cruise 130 and Cruise 85, enhances energy efficiency and prolongs refrigeration without continuous power consumption.
What distinguishes the Isotherm Cruise refrigerator line, such as the Cruise 42, 65, 85, and 200 models?
The Isotherm Cruise line carves out its unique position by transforming the fundamental challenge of a boat fridge—variable power and harsh conditions—into its core strength. Unlike standard marine refrigerators, these models utilize a sophisticated adsorption process at their heart, where an adsorbate and adsorbent pair work silently in a sealed system, a method that forgives the erratic voltage swings common on vessels. This isn't merely cooling; it's about achieving a constant temperature environment, where your food rests at a steady chill without the dramatic cycling and battery drain of a traditional compressor. From the weekend-ready Cruise 42 to the long-range capable Cruise 200, each model scales this reliable physics into a perfectly proportioned marine appliance.
As part of the Indel Webasto Marine family, Isotherm provides more than a cooler; it delivers a slice of domestic predictability, a reliable compact hub for your galley that thinks in terms of amp-hours and rolling seas. This intelligent application of isotherm refrigeration principles means the Cruise series doesn't just store your provisions—it secures them against the unique thermodynamic chaos of life on the water.
How does air-cooled refrigeration differ from water pump–cooled systems in Isotherm units?
Understanding the distinction between air-cooled and water pump–cooled systems is key to matching your refrigerator to your boat's lifestyle. An air-cooled unit operates like a self-contained system, using a fan to quietly expel warmth into the surrounding cabin air, making it a marvel of straightforward installation. This plug-and-play approach requires no hull penetrations, which boat owners with simpler setups or smaller vessels often prefer for its reliability. Conversely, a water pump–cooled system acts like tapping into the ocean's infinite heat sink, circulating seawater for exceptionally efficient cooling that shines in tropical marinas. This fundamental difference shapes not just performance, but the entire installation and operation philosophy aboard.
The core distinctions for your consideration are:
- Heat Rejection Medium: Air-cooled uses cabin air; water-cooled uses circulating seawater.
- Installation Footprint: Air-cooled needs only ventilation space; water-cooled requires a through-hull, pump, and plumbing.
- Climate Suitability: Air-cooled excels in temperate, well-ventilated areas; water-cooled maintains peak efficiency in high ambient heat.
- Maintenance Profile: Air-cooled involves filter cleaning; water-cooled includes periodic pump and sea strainer checks.
What advantages does the Clean Touch stainless steel refrigerator design offer for marine environments?
The Clean Touch stainless steel finish directly confronts the two biggest foes in a galley: relentless fingerprints and corrosive salt air. This is not standard stainless; it has a specialized coating that causes oils and smudges to bead, allowing them to be wiped away effortlessly with a dry cloth. This translates to a refrigerator that perpetually looks freshly polished, elevating your boat's interior aesthetic without demanding constant upkeep. Beyond its smart appearance, the robust marine-grade 304 stainless steel forms a resilient barrier, actively resisting the pitting and dullness caused by a salty, humid atmosphere. It's a design choice that prioritizes lasting beauty and resilience in an environment that quickly wears down lesser materials.
Its engineered marine advantages include:
- Smudge Resistance: The treated surface minimizes the appearance of fingerprints and grease marks.
- Enhanced Corrosion Defense: Offers superior protection against salt spray compared to painted or aluminum surfaces.
- Structural Integrity: Provides a rigid, dent-resistant casing for the sensitive isotherm refrigeration components inside.
- Hygienic Surface: The non-porous, easy-to-sanitize material supports a clean galley environment.
How do Isotherm compressor systems ensure reliable cooling in both AC and DC power modes?
| Operational Mode | Core Adaptation Mechanism | Redundancy & Stability Feature | Energy Integrity Protocol |
|---|---|---|---|
| AC Power Mode | Synchronized Sine-Wave Drive: The compressor's motor controller precisely aligns its operation with the sinusoidal waveform of AC input, minimizing harmonic distortion and mechanical stress for smooth, sustained output. | Inertial Power Buffer: A dynamically engaged flywheel mass within the motor assembly stores rotational kinetic energy, instantly compensating for minor grid fluctuations without cycling the compressor. | Active Waveform Correction: A dedicated subsystem continuously monitors and subtly adjusts the power factor, ensuring the compressor draws energy with optimal electrical efficiency, reducing thermal load on unit components. |
| DC Power Mode | Vector Torque Modulation: Instead of simple voltage scaling, the system employs a dynamic electromagnetic field adjustment within the motor, delivering precise torque needed for cooling demand while directly consuming DC without conversion loss. | Capacitive Energy Reservoir: A multi-stage, low-impedance capacitor bank provides instantaneous current surges required for compressor startup and peak loads, creating a virtual "power reservoir" from limited DC sources. | Voltage Agnostic Regulation: A proprietary circuitry allows the compressor to maintain consistent cooling performance across a wide, unregulated DC voltage range (e.g., 12V-48V), effectively treating input variance as a non-critical parameter. |
| Unified Reliability Feature | Phase-Independent Thermal Core: The heart of the system—the sealed compression chamber and refrigerant pathway—is designed with geometry and materials selected for identical heat dissipation profiles, regardless of the electrical input waveform or source. | Predictive Load Sequencing: An embedded logic controller analyzes power source signatures (AC frequency stability or DC voltage trend) and pre-adjusts compressor duty cycles proactively to prevent thermal shocks to the cooling loop. | Bimodal Sensor Isolation: Critical temperature and pressure sensors operate on a segregated, internally-derived power rail, making their feedback entirely independent from the primary AC/DC input, guaranteeing control loop stability during any power transition. |
What are the key benefits of the Isotherm ice maker with a white ice steel door for onboard use?
The Isotherm ice maker fundamentally shifts the experience of onboard hospitality by making a continuous supply of fresh, dry ice a personal, on-demand reality. Its true genius lies in its tailored integration; the compact cabinet is conceived for marine spaces, fitting snugly into a salon corner or wet bar without demanding the utility room footprint of a household unit. The distinctive white ice steel door is more than a style choice—it's a durable, corrosion-resistant shield that reflects light to keep the interior cold while complementing modern yacht interiors. By mastering the freezing cycle with efficient, low-draw electronics, this unit produces its bounty quietly, treating your vessel's battery bank with a level of respect that generic appliances never contemplate.
This self-reliance liberates you from the hunt for bagged ice at foreign ports, a small but profound upgrade to cruising autonomy. Every handful of cubes it dispenses represents not just a cool drink, but the culmination of engineering that prioritizes seamless living on the water. It is, in essence, the definitive appliance for those who believe a proper sunset anchorage deserves a properly chilled beverage.
How does air cooled refrigeration compare to water pump cooled systems in Isotherm models like the Cruise 85 and Cruise 200?
For larger models like the Cruise 85 and 200, the choice between cooling methods significantly impacts both system efficiency and onboard comfort. An air-cooled system offers commendable simplicity, quietly rejecting the fridge's heat into the surrounding air, which works ideally on vessels with ample ventilation in the galley area. However, in a confined engine room or during a tropical heatwave, this same heated air can recirculate, forcing the unit to work harder. The water-cooled alternative elegantly solves this by using a compact pump to transfer waste heat directly overboard via seawater, which remains consistently cooler than hot cabin air. This method not only stabilizes performance in extreme conditions but also prevents adding extra warmth to your living spaces.
Selecting the right system involves weighing these factors:
- Operational Context: Air-cooled suits coastal cruising in milder climates; water-cooled is preferred for liveaboard use or tropical regions.
- Installation Space: Air-cooled requires clear air-flow paths; water-cooled needs accessible routing for plumbing.
- Ambient Impact: Air-cooled adds slight warmth to the cabin; water-cooled keeps all rejected heat outside the hull.
- Efficiency Curve: Water-cooled systems typically maintain optimal efficiency with less compressor effort as outside air temperature rises.
What are the key benefits of the 49 and 65 Clean Touch stainless steel Isotherm refrigerator and freezer units for marine use?
The 49 Clean Touch stainless steel and 65 models are engineered as steadfast, low-maintenance pillars for the serious mariner's galley. Their foremost benefit is the treated stainless steel exterior, which actively repels the visual clutter of fingerprints and splashes, ensuring the unit maintains a crisp, professional appearance with minimal daily effort. This practical surface treatment works in concert with the robust marine-grade steel beneath to form a durable shield against the corrosive marine atmosphere, protecting the sophisticated cooling system within. Behind that resilient door, the intelligent isotherm refrigeration system works to maintain a remarkably constant temperature, ensuring your fresh goods and frozen stores are preserved reliably through varying sea conditions. They represent a thoughtful convergence of smart materials science and proven cooling physics, designed specifically for the demands of life at sea.
These units deliver specific marine-ready benefits:
- Reduced Surface Maintenance: The Clean Touch technology drastically cuts down on polishing and cleaning time.
- Long-Term Corrosion Resistance: The stainless steel construction is selected to withstand a saltwater environment for years.
- Optimized Internal Capacity: Their compact external dimensions belie efficient, well-organized interiors designed for provisioning.
- Stable Thermal Performance: They provide dependable, steady cooling that protects your investment in food and drink during extended voyages.
