What Cantherm does

Cantherm (Canadian Thermostat & Control Devices Ltd.) is a Montreal-based manufacturer of thermal protection and temperature-sensing components, including bimetallic thermostats, NTC thermistors, thermal fuses, inrush current limiters, probes, and high-temperature thermostats rated up to 430°C. The company was founded in 1978 as Multi-State Devices Ltd. and has been a wholly-owned subsidiary of Germany's Microtherm GmbH since its founding year, drawing on the parent's portfolio of seven manufacturing plants and 30+ sales offices with combined capacity exceeding 100 million units annually. Cantherm holds ISO 9001:2015 certification alongside product-level safety certifications (UL, CSA, VDE, BEAB, CB, CQC) and RoHS compliance, qualifying its components for use in safety-regulated end-markets.

The business sells through two channels: catalog distribution via Digi-Key (global broadline) and South Electronics (US specialty thermal distributor), supplemented by direct OEM engagement for engineered-to-order custom thermal protection designs. End-customers span industrial automation (the primary vertical), medical devices, consumer appliances, automotive, and power electronics. The proprietary Moxie thermistor platform and over 50 years of thermal-design heritage are referenced as the company's principal technical differentiators. Cantherm has approximately 11-50 employees and does not publicly disclose financials, operating as a private subsidiary within the Microtherm group structure.

The revenue model is a mix of catalog unit sales through distribution (lower-margin, high-volume) and engineered-to-order custom programs (higher-margin, lower-volume, design-in lock-in). Pricing is component-level rather than subscription- or platform-based. The strategic posture is that of a stable, mature component supplier maintaining certification currency (most recent ISO 9001:2015 renewal in 2024) and incrementally expanding its product surface and North American distribution reach, rather than pursuing disruptive platform shifts.

Name

Cantherm

Legal name

Canadian Thermostats & Control Devices LTD

Website

https://cantherm.com

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

11–50 employees

Short description

Cantherm manufactures bimetallic thermostats, thermistors, thermal fuses, probes, and inrush current limiters for industrial automation, medical, consumer appliance, automotive, and power electronics customers, distributed via Digi-Key, South Electronics, and engineered-to-order OEM programs under parent Microtherm GmbH.

Ownership category

akta.pro rank

Product category

Thermal Protection Components

NAICS

Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Other Measuring and Controlling Device Manufacturing (334519)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Thermistors & Temperature Sensors (NTC/PTC/RTD Elements) (HDAHANAH)

akta.pro secondary industry

Thermal Management Components (Heat sinks, TIMs, fans/blowers, thermal pads) (IMAGAJAL)

Keywords

• Thermal protection components
• Bimetal thermostats
• NTC PTC thermistors
• Thermal fuses
• Inrush current limiters

Headquarters

HQ city

Montréal

HQ country

Canada

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Thermal Control Device Sales: Cantherm generates revenue through the sale of bimetal thermostats, NTC/PTC thermistors, thermal fuses, temperature probes, and inrush current limiters. Products are sold as individual components to industrial customers for integration into their own products and systems.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Cantherm (Canadian Thermostats & Control Devices LTD) manufactures and sells thermal management and protection components, including bimetal thermostats (thermal cut-outs, disc thermostats, control thermostats, high-temperature thermostats up to 430°C), NTC and PTC thermistors, non-resettable thermal fuses, temperature probes, and inrush current limiters. Products are sold as discrete components to industrial OEMs for integration into motors, transformers, power supplies, household appliances, automotive electronics, and medical devices.

Product overview

Cantherm (Canadian Thermostats & Control Devices LTD) is a manufacturer of thermal management products organized as a portfolio of related product families. The core offerings include bimetal thermostats (thermal cut-outs, disc thermostats, control thermostats, high temperature thermostats), thermistors (NTC and PTC types for temperature measurement and inrush current limiting), thermal fuses (non-resettable protection devices), and probes (thermostatic and thermistor-based temperature sensors). Additional products include heater protection devices and custom engineered-to-order components. The product line serves applications in automotive, household appliances, HVAC, medical equipment, industrial automation, and power electronics sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Thermal Cut-outs/Bimetal Thermostats Snap-action bimetal thermostats for thermal protection across a variety of industrial, consumer, and electronic applications. Models include F-series, T-series, CD79F, and B12/B13 series.
• 1/2" Disc Bimetal Cut-outs/Thermostats Compact disc bimetal thermostats with high-capacity switching cycles and various mounting possibilities. Includes R53 and R27/R28/R29 series models for industrial thermal switching.
• Control Thermostats High-quality precision performance thermostats for control applications requiring long life and accuracy. Includes MQT and M3 series models.
• Hi Temp Thermostats High-temperature thermostats rated up to 430°C, available with mounting brackets. Includes K-series and M2HA models, leveraging flat plate bimetal technology that exceeds the 230°C upper limit of standard disk-type bimetal thermostats.
• NTC & PTC Thermistors NTC and PTC thermistors designed for temperature measurement and temperature compensation in electronic circuits. Includes MF72, MF11, MF51E, MF52, MF58, CWF, and Chip NTC series.
• Thermal Fuses One-time non-resettable thermal fuses providing low-cost reliable protection against abnormal heat generation. Uses organic pellet technology that melts to open the circuit at specified temperatures. Includes SDF, SDJ1/SDJ2, and other thermal cut-off series.
• Inrush Current Limiters NTC thermistors designed for high-power surge current protection at power-on, in compact form factor with long life and proven reliability. Includes MF72 and MF73T-1 series.
• Probes Custom temperature probes with NTC or PTC thermistors encased in various housings, plus thermostatic probes with bimetallic thermal switches.
• Heater Protection Open-frame economical thermal protection devices with up to 10,000 cycles, available with self-hold and manual reset options. Includes A-series and D-series models for heater protection applications.
• Medical, High Tech, Industrial Automation Products Encapsulated thermostats for use in electronics, medical, high-tech, and industrial automation applications, including the F20-E06 encapsulated thermostat for electronics.
• Engineered to Order Components Custom design, engineering, and manufacturing of thermal control components to customer specifications. Includes temperature control units, aluminum connectors for solar panels, and air flap sensors.

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Microtherm GmbHcoreStrategic or Co-development PartnerMicrotherm GmbH acquired Cantherm in 1978 and is the parent company. Cantherm operates as a self-sufficient, privately held profit center within the Microtherm group. Cantherm produces MIC products using German-made Microtherm components and has access to the entire group's manufacturing capabilities exceeding 100 million units per year.
• Digi-Key ElectronicscoreChannel Partner/ Reseller/ DistributorAuthorized online distributor for Cantherm products. Digi-Key offers Cantherm thermostats, thermistors, and thermal fuses for purchase through their marketplace with global shipping.
• South ElectronicsminorChannel Partner/ Reseller/ DistributorAuthorized distributor for Cantherm product lines serving the US market from their location in Dothan, Alabama.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Thermik Gerätebau: Thermik is a German manufacturer of thermal protectors, motor protection devices, and PTC thermistors for motors, transformers, and heating applications. Closely aligned with Cantherm's bimetal thermostat and motor/transformer protection portfolio.
• Selco Products: Selco Products manufactures thermal controls, bimetal thermostats, and temperature sensors for industrial, medical, and appliance applications. Comparable mid-sized peer competing in similar temperature control niches.
• Schott AG (SEFUSE): Schott's SEFUSE brand is a leading global supplier of thermal fuses and thermal protection devices, particularly strong in Asian OEM markets. Directly comparable to Cantherm's SDF and SDJ thermal fuse families across appliance and industrial segments.
• Uchihashi Estec: Uchihashi Estec is a Japanese specialist in thermal fuses (one-shot thermal cut-offs) and thermal protection components for consumer electronics, appliances, and battery packs. Directly comparable to Cantherm's thermal fuse product family.
• Portage Electric Products: Portage Electric Products (PEPI) is a US-based specialist manufacturer of thermal fuses (one-shot thermal cut-offs) and NTC thermistors. Directly comparable to Cantherm's thermal fuse and thermistor offerings for appliance, power, and industrial customers.
• Therm-O-Disc (Emerson): Therm-O-Disc, owned by Emerson, is one of the largest global manufacturers of bimetal thermostats, thermal cut-offs, and thermal switches for appliances, HVAC, and industrial applications. Direct overlap with Cantherm's core bimetal thermostat product lines.

Broad incumbents

• Murata Manufacturing: Murata is one of the world's largest manufacturers of NTC and PTC thermistors for temperature sensing, inrush current limiting, and circuit protection. Directly competes with Cantherm's MF72/MF11 thermistor families at scale.
• Sensata Technologies: Sensata is a major global sensor and circuit protection manufacturer with broad thermal sensor, thermostat, and circuit protection product lines serving industrial, automotive, and aerospace markets. Overlaps with Cantherm's thermal protection portfolio at the high-volume OEM tier.
• TDK Corporation (EPCOS): TDK, including its EPCOS thermistor product lines, is a global leader in NTC/PTC thermistors, inrush current limiters, and temperature sensors for automotive, industrial, and consumer electronics. Comparable to Cantherm's thermistor and thermal protection products at the high-volume tier.
• Honeywell Sensing & IoT: Honeywell's sensing division produces a broad portfolio of thermal sensors, switches, and thermostats across industrial, aerospace, and commercial markets. A larger incumbent with overlapping thermal sensing and switching products versus Cantherm's specialty portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/patt-technologies-inc.

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cantherm