Why Choose the nVent HOFFMAN EFR202 Thermostat NC Fixed?
The nVent HOFFMAN EFR202 is a fixed temperature normally closed (NC) thermostat designed to provide reliable thermal management inside electrical enclosures and control panels. As part of the HOFFMAN EFR thermostat series, it is engineered to automatically control heating devices such as panel heaters by switching them on or off according to the preset temperature threshold.
This compact thermostat uses a thermostatic bimetal sensor element and a fixed temperature setting to maintain consistent enclosure conditions. The preset design prevents unauthorised adjustment while helping reduce operational costs by ensuring connected climate control devices operate only when required.
With a normally closed contact configuration, the EFR202 is suitable for regulating enclosure heaters and protecting sensitive electrical components from low-temperature conditions. Its DIN rail mounting clip allows straightforward installation inside industrial control cabinets and electrical panels.
Key Advantages
Compact fixed temperature thermostat for electrical enclosures.
Normally closed (NC) contact designed for heater control applications.
Preset temperature setting helps prevent unauthorised adjustment.
Automatic control of fan heaters and enclosure heating devices.
35 mm DIN rail mounting for simple panel installation.
Robust design suitable for industrial control environments.
Key Features
nVent HOFFMAN EFR thermostat series.
Normally closed contact (NC) for heating control.
Fixed temperature set point: 5 °C.
Switch-on temperature: +5 °C.
Switch-off temperature: +15 °C.
Thermostatic bimetal sensor element.
35 mm DIN rail mounting clip according to EN 60715.
Plastic housing according to UL94 V-0.
IP20 protection rating for enclosure installation.
Reliable Thermal Control for Electrical Enclosures
The nVent HOFFMAN EFR202 thermostat provides automatic temperature regulation by controlling connected heating equipment inside electrical cabinets. By maintaining suitable enclosure temperatures, it helps protect electronic components from condensation and cold-related failures.
Designed for industrial automation environments, the EFR series combines compact construction, reliable switching performance and simple DIN rail installation to support effective enclosure climate management.
Typical Applications
Electrical control cabinets and automation panels.
Industrial enclosure heating systems.
Control panels requiring condensation prevention.
Machine building and OEM electrical systems.
Switchgear and power distribution enclosures.
Industrial climate control applications.
Technical Specifications
Country of Manufacture
Germany
Manufacturer
nVent HOFFMAN
Series
EFR Fixed Thermostat
Model
EFR202
Product type
Fixed temperature NC thermostat
Contact type
Normally closed (NC)
Application
Enclosure heater regulation
Fixed temperature set point
5 °C
Switch capacity
250 V AC, 5 A; 120 V AC, 10 A; 24 V DC, 30 W
Maximum starting current
16 A AC for 10 seconds
Operating temperature
-40 °C to +80 °C
Service life
>100,000 cycles
Connection
2-pole terminal for 2.5 mm² cable
Protection rating
IP20
Material
Plastic UL94 V-0
Finish
Light grey (RAL 7035)
Dimensions (H × W × D)
47 × 33 × 33 mm
Weight
0.05 kg
Approvals
CE, EAC, cRUus_UL Listed
Frequently Asked Questions
What is the nVent HOFFMAN EFR202 used for?
The EFR202 is a fixed temperature normally closed thermostat used to control enclosure heaters and maintain suitable temperatures inside electrical panels.
What type of contact does the EFR202 thermostat have?
The EFR202 features a normally closed (NC) contact designed for heating regulation applications.
What is the fixed temperature setting of this thermostat?
The EFR202 has a preset fixed temperature set point of 5 °C.
How is the EFR202 installed?
The thermostat is designed for mounting on a standard 35 mm DIN rail using its integrated mounting clip.
What protection rating does the thermostat provide?
The EFR202 provides an IP20 protection rating for installation inside electrical enclosures.
Trusted by Industrial Panel Builders Worldwide
nVent HOFFMAN EFR thermostats are widely used by electrical engineers and enclosure manufacturers to provide dependable temperature control and protect sensitive industrial equipment.
Country of Manufacture
Germany
Manufacturer
nVent HOFFMAN
Series
EFR Fixed Thermostat
Model
EFR202
Product type
Fixed temperature NC thermostat
Contact type
Normally closed (NC)
Application
Enclosure heater regulation
Fixed temperature set point
5 °C
Switch capacity
250 V AC, 5 A; 120 V AC, 10 A; 24 V DC, 30 W
Maximum starting current
16 A AC for 10 seconds
Operating temperature
-40 °C to +80 °C
Service life
>100,000 cycles
Connection
2-pole terminal for 2.5 mm² cable
Protection rating
IP20
Material
Plastic UL94 V-0
Finish
Light grey (RAL 7035)
Dimensions (H × W × D)
47 × 33 × 33 mm
Weight
0.05 kg
Approvals
CE, EAC, cRUus_UL Listed
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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Common questions about our products and support
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...