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NVENT HOFFMAN EFR201 Thermostat NO Fixed
nVent HOFFMAN EFR201 fixed normally open thermostat with +35 °C switching temperature designed for controlling enclosure cooling devices and alarms.
£17.33
Why Choose the nVent HOFFMAN EFR201 Thermostat?
The nVent HOFFMAN EFR201 is a fixed temperature normally open (NO) enclosure thermostat designed to automatically control cooling devices and high-temperature alarm equipment inside electrical panels. As part of the reliable nVent HOFFMAN EFR thermostat series, it provides accurate temperature switching, simple installation and dependable thermal management for industrial enclosures.
This thermostat uses a thermostatic bimetal sensor element with a pre-set switching temperature, preventing unauthorised adjustment while ensuring consistent operation. The compact design includes a mounting clip for direct installation on a 35 mm DIN rail, making it ideal for control cabinets, automation panels and electrical enclosures.
With a normally open contact and a fixed switch-on temperature of +35 °C, the EFR201 is suitable for controlling filter fans, cooling equipment or temperature warning devices. Its IP20 protection rating and robust UL94V-0 plastic construction provide reliable operation inside protected electrical enclosures.
Key Advantages
- Compact fixed temperature thermostat for electrical enclosures.
- Normally open (NO) contact for controlling cooling devices and alarms.
- Pre-set +35 °C switching temperature prevents unwanted adjustment.
- Suitable for controlling filter fans and enclosure cooling systems.
- Simple 35 mm DIN rail mounting for fast installation.
- Long service life exceeding 100,000 switching cycles.
Key Features
- nVent HOFFMAN EFR fixed thermostat series.
- Normally open (NO) contact configuration.
- Thermostatic bimetal sensor element.
- Switch-on temperature: +35 °C.
- Switch-off temperature: +25 °C.
- Controls cooling devices or high-temperature signalling equipment.
- Mounting clip for 35 mm DIN rail (EN 60715).
- Two-pole terminal connection for simple wiring.
Reliable Temperature Control for Electrical Enclosures
The nVent HOFFMAN EFR201 thermostat helps maintain safe enclosure operating conditions by automatically activating connected cooling equipment when the internal temperature reaches the fixed set point. This reduces the risk of overheating and supports improved reliability of electrical components.
Designed for industrial control panels and automation systems, the EFR series provides dependable temperature management through simple mechanical switching technology. Its fixed setting helps maintain consistent performance while preventing unauthorised changes to thermal protection settings.
Typical Applications
- Electrical control cabinets.
- Industrial automation panels.
- Filter fan control systems.
- High-temperature alarm circuits.
- Switchgear and distribution enclosures.
- Machine control equipment.
Technical Specifications
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| Contacts | 1NO | |
|---|---|---|
| Device Type | Thermostat | |
| Accessory Type | Climate Accessories | |
| Country of Manufacture | Germany | |
| Manufacturer | nVent HOFFMAN | |
| Series | EFR Fixed Thermostats | |
| Model | EFR201 | |
| Product type | Fixed temperature thermostat | |
| Contact type | Normally open (NO) | |
| Application | Cooling devices and temperature alarms | |
| Switch-on temperature | +35 °C | |
| Switch-off temperature | +25 °C | |
| Switch capacity | 250 V AC, 5 (1.6) A | |
| Additional switching capacity | 120 V AC, 10 (2) A; 24 V DC, 30 W | |
| Maximum starting current | 16 A AC for 10 seconds | |
| Operating temperature | -40 °C to +80 °C | |
| Protection rating | IP20 | |
| Connection | 2-pole terminal for 2.5 mm² conductor | |
| Mounting type | 35 mm DIN rail clip mounting | |
| Finish | Light grey | |
| Dimensions (H × W × D) | 47 × 33 × 33 mm | |
| Weight | 0.05 kg |
Frequently Asked Questions
What is the nVent HOFFMAN EFR201 used for?
The EFR201 is used to control enclosure cooling devices such as filter fans or temperature alarm equipment when a fixed temperature level is reached.
What type of contact does the EFR201 thermostat have?
The EFR201 features a normally open (NO) contact designed for controlling cooling devices or signal equipment.
What is the switching temperature of the EFR201?
The thermostat switches on at approximately +35 °C and switches off at approximately +25 °C.
How is the EFR201 installed?
The thermostat is installed using an integrated mounting clip for 35 mm DIN rail mounting inside electrical enclosures.
What is the protection rating of the EFR201?
The EFR201 has an IP20 protection rating and is designed for installation inside protected electrical cabinets.
Trusted by Industrial Enclosure Specialists Worldwide
nVent HOFFMAN EFR thermostats are trusted by engineers and panel builders worldwide to provide reliable temperature control, efficient cooling management and dependable protection for electrical enclosures.
