NSR66-BM3 Belt Misalignment Switch


  • Cast Aluminum Body
  • It is resistant to blow and heavy conditions.
  • 2NO / 2NC Angular Contact Mechanism
  • Suitable assembly structure in USA field plant
  • It has CE and EAC Standards.
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NSR66-BM3 Belt Misalignment Switch

NSR66-BM3 Belt Misalignment Switch is a conveyor belt safety accessory that prevents damages to belts and equipment due to a misalignment condition of the conveyor belt systems.

NSR66-BM3 switches will allow you to reduce the downtime and maintenance associated costs.

Materials used:

The robust die-cast aluminum housing with an epoxy-based powder coating and all stainless-steel external hardware.

Safety Features:

The heavy-duty rugged design makes them suitable for most industrial applications that require long-term reliable equipment.

General Description:

They are normally placed 0,30m -1,80m from the head and tail pulley on both sides of the belt. The roller arm positioned approximately 2,54cm-7,62cm from the normal belt position.

Certifications and Standards:

The microswitch used in products is VDE approved. All KBT Electric products are produced in accordance with CE and EAC standards.

Technicial Specifications

Enclosure  Aluminium Casting
Micro Switch Rating 250 VAC 15A / 24 VDC 10A
Output Signal (2) SDPT Alarm and Stop
Cable Entry 2 x M25
Temperature Rating -45°C to +80°C
Contact Angles 15° and 25°
Protection Class IP67
Enclosure Color Yellow (RAL 1012)
Weight 3.3 Kg
Mounting Orientation It is suitable for double-sided use.
Impact Rating IK09 (EN 62262)
Warranty Period 24 Months  

Safety Standards

Electrical Safety EN 60947
Mechanical Safety EN 60204
Outdoor Safety EN 60529
Impact Resistance EN 62262
Certificate​ CE, EAC
Micro switches are VDE approved.


ATEX Zone 21 / Zone 22
Without Reset Lever
Bus Security Interface
Custom Contact Angles
Mounting Bracket
Custom Arm Dimensions

Spare Parts

Model Features
Z-15GW22-B 1NO+1NC Switch
122.R1.1242 M25x1,5 Cable Gland
122.R1.1241 Blind Plug
BA-55 Mounting Bracket (Can be made in custom dimensions)
166.G1.1110 Enclosure
166.KL1.1626 Roller Arm
166.RM1.1618 Reset Lever