China Suppliers Factory Two-way Pull Rope Switch HFKLT2 for Emergency Shutdown of Belt Conveyor Systems
Advantage
All products of the company can be customized for production according to user usage scenarios.
Working principle
When an emergency occurs at the tape transportation site, the steel wire rope tied to the lifting eye of the pull rope switch can be pulled, so that the slider in the machine controls the action of the internal micro switch to initiate a shutdown or alarm signal. Automatic reset handle rear reset.
Structural features
This machine adopts aluminum alloy precision die-casting shell, which is high in strength and light in weight. The shell protection level reaches IP55 and can work in harsh environments for a long time; The contact capacity is large and the action is sensitive and reliable.
Type and meaning
Working conditions
- Relative humidity: Not more than 85%
- Action angle: <30° Limit angle: 60°
- Operating force: >3KG
- Number of contacts: Normally open 1 Normally closed 1 NO 1 NC1 / Normally open 2 normally closed 2 NO 2 NC2
Parameter
- Implementation standard: GB/T14048.5-2017
- Rated insulation voltage: Ui:400V
- Conventional thermal current (Ith): 3A Use Category: AC-15, DC-13
- Rated operating voltage/Rated Current for each type of use:
- AC-15: Ue/Ie AC380V/0.8A
- DC-13: DC220V/0.15A
- Protection class shell: IP55
- Rated short-circuit current limiting fuses with model tests: RT16-6A
Ordering Tips
Normally open 2 and normally closed 2 are two-stage two-way pull rope switches.
HFKLT2I two-way pull rope switch
Ordering Tips
The machine is equipped with a cable with a length of 0.5m when it leaves the factory. The cable pulling method refers to the marked cable color.
HFKLT2II two-way pull rope switch
HFKLT2 series two-way pull rope switch
Product overview
When emergency power outage can be achieved everywhere in the machine or equipment, a safety rope switch is needed. The emergency stop switch can be actuated by a pre-tensioned pull rope.
Conditions of use
- Environment Temperature: -40℃~60℃
- Relative Humidity: Not more than 90%
- Atmospheric pressure: 80~120kpa
- Altitude less than 2000m Altitude less than 2000m
- Life: Switching 100,000 times
- Insulation Voltage: AC1000V Test 1 minute
| Model | Contact capacity | Contacts | Operating force | Reset mode | Working stroke | Limit travel | Protection class | |
|---|---|---|---|---|---|---|---|---|
| NO | NC | |||||||
|
LLP2-1 KLT2-1 HFKLT2-1 |
≤380V ≤2A |
1 | 1 | 12±2 | Automatic reset | 15±2 | 20±2 | IP55 |
|
LLP2-2 KLT2-2 HFKLT2-2 |
1 | 1 | Manual Reset | |||||
Frequently Asked Questions (FAQ)
Q1: How does the HFKLT2 series pull rope switch operate during emergencies?
When an emergency occurs, pulling the steel wire rope attached to the lifting eye of the switch moves the internal slider. This action triggers the internal micro switch to send a shutdown or alarm signal immediately.
Q2: What is the difference between automatic reset and manual reset models?
Automatic reset models (such as HFKLT2-1) automatically return to their normal state once the tension on the pull rope is released. Manual reset models (such as HFKLT2-2) require manual operation of the handle to reset the switch after activation.
Q3: Can the HFKLT2 series pull rope switch withstand harsh environmental conditions?
Yes. The switch features an IP55-rated aluminum alloy precision die-casting shell, which is lightweight, high-strength, and designed to operate reliably in temperature ranges from -40℃ to 60℃ and humidity up to 90%.
Q4: What are the contact configuration options for these switches?
The switches support multiple contact configurations, including 1 Normally Open + 1 Normally Closed (1 NO / 1 NC) as well as 2 Normally Open + 2 Normally Closed (2 NO / 2 NC) setups.
Q5: Are customization services available for the HFKLT2 switches?
Yes, all products of the company can be customized and manufactured according to specific user usage scenarios and application requirements.