HES
Article Number: 92.057 020.xxx
- Alu-housing
- Stainless steel roller Ø 50 mm
- adjustable warning
- without latching
Features
Kiepe belt misalignment switches type HES are used to monitor the misalignment of conveyor belt systems in accordance with the requirements of EN 620. They are used to protect the system from damage or destruction in the event of belt misalignment and are installed in pairs on both sides of the upper or lower run in areas at risk. The ball-bearing actuating roller made of alloy steel and with a large roller diameter is resistant to wear that occurs when the moving belt touches the roller. The Kiepe belt misalignment switch type HES conforms to the Low Voltage Directive 2014/35/EU and is UKCA compliant. It has a robust aluminum housing and can be equipped with up to 4 positively actuated changeover contacts with snap-action function. It has two adjustable switching points.
Note The misalignment switch may only be used in control circuits.
Corrosive
- Powder
- Conditionally Suitable
- Gravel
- Suitable
- Rubble
- Conditionally Suitable
Non-Corrosive
- Powder
- Suitable
- Gravel
- Suitable
- Rubble
- Conditionally Suitable
The misalignment switch type HES switches when the actuating roller is approached and deflected by the misaligned conveyor belt in the direction of rotation of the roller lever. The stainless steel roller lever is mounted on ball bearings, making it better able to absorb lateral forces and impacts. The switching angle can be set for each switching contact using an adjustable roller. In addition to the safety cut-out, this also enables an advance warning to be realized. When the belt is running correctly, the roller lever resets itself automatically.
| Designation | Misalignment Switch Type HES |
|---|---|
| Type of actuation | Bidirectional (double-side) via roller lever |
| Complies with | DIN EN 60947-5-1 |
| Suited for | Control units in accordance with DIN EN 60204-1 |
| Enclosure | Aluminum |
|---|---|
| Coating | PU 2K-paint yellow, RAL 1004 |
| Actuating lever | Stainless steel; ∅ 50 mm, ball-bearing guided roller |
| Mounting | 2 x M8 |
| Deflection of roller lever (max.) | +/-75° |
| Weight | 2.2 kg |
| Switching system (max.) | 4 SPDT (snap action) positive-opening switches, self-cleaning |
|---|---|
| Switching range | 2x 12,5°, adjustable +/-10° 2x 18°, fix |
Cable entry (included in scope of delivery) | 2x M25x1,5 with red transport lock 1x screwed cable gland: sealing area ∅ 11 mm to ∅ 16 mm; 1x dummy screw |
| Utilization category | AC-15: 230 V; 1.5 A DC-13: 60 V; 0.5 A DC-13: 24 V; 2 A |
| Connection cross section (max.) | 2.5 mm2 |
| Protective conductor connection | Protection Class I / protective earthing |
| Rated insulation voltage Ui | 250 V |
| Rated impulse withstand voltage Uimp | 2,5 kV, Overvoltage category II, degree of pollution 3 |
| Conventional thermal current Ith | 6 A |
| Permissible ambient temperature | – 25°C… +60°C |
|---|---|
| Extended ambient temperature | – 40°C… +70°C (type HES 7xx) |
| Protection rating (according to EN 60529) | IP65 / IP67 |
| Contact reliability | >30.000 actuations at 100% Ie |
|---|
Misalignment switches of type HES [1] are fastened to a substructure with 2 M8 screws each. In the event of misalignment, the belt [2] must not leave the lateral guide rollers [3]. The position of the belt misalignment switches must be selected so that the actuating roller of the belt misalignment switch is preferably approached vertically by the belt [2]. During normal operation, the actuating roller of the belt misalignment switch is not touched. The roller lever is interchangeable and can be freely fixed in the direction of rotation on the switch axis. The electrical connection is made when the device is open via the cable gland included in the scope of delivery directly to the connection glands of the switching elements.
Variants
| Name | Ordering No. | Weight | Contacts NC NO SPDT | Pressure Equalization |
|---|---|---|---|---|
| HES 011 | 92.057 020.011 | 2.1 kg / 1 Unit | 2 | |
| HES 017 | 92.057 020.017 | 1.8 kg / 1 Unit | 2 | Available |
| HES 211 with 2-wire busmodule | 92.057 020.211 | 2.1 kg / 1 Unit | 2 (Au) 2 Used | |
| HES 501 (UL) with connector block | 92.057 020.501 | 2.1 kg / 1 Unit | 2 | |
| HES 711 (-40°C) | 92.057 020.711 | 2.2 kg / 1 Unit | 2 | |
| HES 916 | 92.057 020.916 | 2 kg / 1 Unit | 2 (Au) | Available |
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