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WHD-EA mechanical 3 contacts adjustable capillary thermostat is a temperature control device specifi...
* Rate: AC16A 250V
* Temperature Range: 0-320℃
* Bulb Dia: 6mm
* Bulb Length: as different temperatures
* Max resistance temperature T125
* Length of Capillary tube: 300-2000mm* On-off Temperature Difference: 2-12℃
* Application: Sealing machie, PPR, melting machine, etc.
| Parameter | Specification |
| Model | WHD-E2 |
| Type | Capillary Heating Temperature Limiter |
| Rated Current / Voltage | AC 16A 250V |
| Temperature Range | 0–320°C |
| Sensing Bulb Diameter | 6 mm |
| Sensing Bulb Length | Depends on temperature setting |
| Capillary Tube Length | 300–2000 mm |
| On-Off Temperature Difference | 2–12°C |
| Reset Type | Automatic Reset |
| Max. Withstand Temperature | T125 |
| Material | Copper sensing bulb and capillary, stainless steel body, plastic base |
| Certifications | TUV, CE, CQC |
| Warranty | 1 year |
| Customization | OEM / ODM available |
The required sensing bulb length depends on the selected temperature setting. Please confirm the required specification before ordering.
Heating Temperature Limiter Advantages
Automatic Reset
The WHD-E2 uses an automatic reset function. After the sensed temperature falls by the specified 2–12°C differential, the switch automatically recloses without manual resetting.
Wide Temperature Range
The WHD-E2 Heating Temperature Limiter supports a 0–320°C temperature range for heating equipment requiring high-limit temperature protection.
Flexible Capillary Length
Capillary lengths from 300 mm to 2000 mm allow the sensing bulb to be positioned at the heating point while the switch can be installed at a separate location.
Certified Configuration
The WHD-E2 is available with TUV, CE, and CQC certification. Certification documents can be provided according to the applicable product configuration.
Heating Temperature Limiter Applications
The WHD-E2 is suitable for heating equipment that requires high-limit temperature protection and automatic reset.
- Sealing machines
- PPR pipe welding equipment
- Melting equipment
- Deep fryers
- Other heating equipment requiring backup over-temperature protection
The final application depends on the equipment design, temperature range, electrical rating, and installation conditions.
Heating Temperature Limiter Manufacturer and OEM Supplier
We are a Heating Temperature Limiter manufacturer and factory supplying capillary temperature protection components for heating equipment manufacturers, distributors, and wholesale buyers.
Custom and OEM Service: We support Custom, OEM, and ODM requirements according to confirmed product specifications. Available requirements can include temperature setting, capillary length, sensing bulb configuration, and other application-related specifications.
Factory Supply: As a direct Factory Supplier, we support sample evaluation, specification confirmation, OEM projects, and repeat Wholesale orders. Product requirements can be reviewed according to the target equipment and application.
WHD-E2 Heating Temperature Limiter FAQ
1
What is a Heating Temperature Limiter?
A Heating Temperature Limiter is a temperature protection device that disconnects a heating circuit when the sensed temperature reaches a preset limit. The WHD-E2 is designed for high-limit protection rather than normal temperature control.
2
Does the WHD-E2 reset automatically?
Yes. The WHD-E2 uses automatic reset. After the sensed temperature falls by the specified 2–12°C differential, the switch automatically recloses.
3
What is the temperature range of the WHD-E2?
The WHD-E2 has a temperature range of 0–320°C. The required temperature setting should be selected according to the heating equipment.
4
What capillary lengths are available?
The standard capillary tube length range is 300–2000 mm. The required length should be selected according to the distance between the sensing bulb installation point and the switch mounting position.
5
Can a Heating Temperature Limiter work with a separate operating thermostat?
Yes. The WHD-E2 Heating Temperature Limiter can work together with a separate operating thermostat such as the WHD-105BA. The operating thermostat handles normal temperature control, while the limiter provides high-limit over-temperature protection.
6
Does the T125 rating mean the WHD-E2 can only sense temperatures up to 125°C?
No. The 0–320°C range refers to the temperature sensed at the bulb. T125 refers to the temperature class of the switch body. The Heating Temperature Limiter switch body should remain within its specified temperature limit during installation.
7
Do you provide wholesale supply?
Yes. Factory supply is available for the Heating Temperature Limiter for wholesale buyers, distributors, heating equipment manufacturers, and OEM projects.
8
Can the WHD-E2 be customized?
Yes. Custom, OEM, and ODM requirements can be discussed according to the required temperature setting, capillary length, sensing bulb configuration, and other confirmed specifications.
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