Belt Misalignment Switches

SEL

Article Number: 92.056 979.xxx

  • Cast-iron-housing
  • Stainless steel roller Ø 50 mm (Ø 108 mm)
  • Adjustable warning, without latching

Features

Kiepe belt misalignment switches type SEL 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 SEL accords to the Low Voltage Directive 2014/35/EU and is UKCA compliant. It has a robust cast iron 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
Suitable

Non-Corrosive

Powder
Suitable
Gravel
Suitable
Rubble
Suitable

The misalignment switch type SEL switches when the actuatingroller is approached and deflected by the misaligned conveyorbelt in the direction of rotation of the roller lever. The stainlesssteel roller lever is mounted on ball bearings, making it betterable to absorb lateral forces and impacts.The switching angle can be set for each switching contact usingan adjustable roller. In addition to the safety cut-out, this alsoenables an advance warning to be realized. When the belt isrunning correctly, the roller lever resets itself automatically.

DesignationMisalignment Switch Type SEL
Type of actuationBidirectional (double-side) via roller lever
Complies withDIN EN 60947-5-1
Suited forControl units in accordance with DIN EN 60204-1
General
EnclosureCast iron
Coating PU 2K-paint yellow, RAL 1004
Actuating lever

Stainless steel; ∅ 50 mm, ball-bearing guided roller

Type 312: Lever: bronze; Roller: stainless steel, ∅ 108 mm

Mounting2 x M10
Deflection of roller lever (max.)+/-75°
Weight4.5 kg
Mechanics
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 categoryAC-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 connectionProtection Class I / protective earthing
Rated insulation voltage Ui250 V
Rated impulse withstand voltage Uimp2,5 kV, Overvoltage category II, degree of pollution 3
Conventional thermal current Ith6 A
Electrical system
Permissible ambient temperature– 25°C… +60°C
Protection rating (according to EN 60529)IP65 / IP67
Ambient conditions according to DIN EN 60947-5-5
Contact reliability>30.000 actuations at 100% Ie
Reliability

Misalignment switches of type SEL [1] are fastened to a substructure with 2 M10 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.

Note The red transport locks must be completely removed and replaced with the supplied screw plugs

Variants

Name Ordering No. Weight Contacts
NC
NO
SPDT
Pressure Equalization
SEL 011 92.056 979.011 5.5 kg / 1 Unit
2
SEL 313 with 3 cable glands 92.056 979.313 5.5 kg / 1 Unit
2
Available
SEL 902 (2 x 47 kOhm via NC for cable break detection) 92.056 979.902 5.5 kg / 1 Unit
2
Available
SEL 312 Roller lever Ø 108 mm 91.056 979.312 5.5 kg / 1 Unit
2
Available
Contact

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