NSR22-PR Pull Cord Switch


  • Cast Aluminum Body
  • It is resistant to blow and heavy conditions.
  • 2x50m Right and Left Rope Connection Distance
  • 3NO / 3NC Snap Action Contact Structure
  • IP68 Protection Class
  • It has CE and EAC Standards.
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NSR22-PR Pull Cord Switch

NSR22-PR Pull Cord Switch(also called a rope switch)is a conveyor belt safety accessory designed to check and shut down conveyor systems in the event of a conveyor belt misalignment.

NSR22-PR series of products do not require maintenance.

Materials used:

The body structure is cast aluminum and is protected with oven paint. Shaft mechanisms are made of stainless steel and Arm mechanisms are made of hard plastic.

Uses and Applications:

It can be mounted on the application area with a steel rope. Also, it can operate by moving on one side or on both sides of a conveyor. If the ropes are pulled from one direction, the system is locked and the switches go to the stop position, then it is returned to normal with Manual reset.

Safety Features:

The heavy-duty rugged design makes them suitable for most industrial applications.

General Description:

Dimensions are 2x50 meters standard distance to the right and left. It has a 1NO + 1NC contact structure in the standard.

Available modifications as per request:

-           The alarm and signal lights can be added to all models

-           It can be used at the longer distances

-           3NO + 3NC contact structure can be applied

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​ Aluminum Casting
Micro Switch Rating 400 VAC 6A / 230 VAC 8A / 24 VDC 10A
Output Signal​ (1) SPDT stop, alarm can be added upon request.
Cable Gland 2 x M25
Temperature Rating -55°C to +100°C
Contact Angle 25°
Rope Length 2 x 50-65 Metres
Contact Type Snap-action
Protection Class IP68
Enclosure Color Red (RAL 3020)
Weight 2.1 Kg
Mounting Orientation It is suitable for double-sided and single- sided use.
Impact Rating IK09 (EN 62262)
Warranty Period 36 Months

Safety Standards

Electrical Safety EN 60947
Mechanical Safety EN 60204
Outdoor Safety EN 60529
Impact Resistance EN 62262
Certificates 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
Signal Light and Alarm

Model Specifications


Contact Structure Optional
NC NO Signal Alarm+Signal
NSR22-PR 1 1 (LGT) (ALGT)
NSR22-PR-22 2 2 (LGT) (ALGT)
NSR22-PR-33 3 3 (LGT) (ALGT)

Spare Parts

Model Features
KB-826 1NO+1NC Switch
KB-R-01 M25x1,5 Cable Gland
KB-KT-01 M25 Blind Plug
KB-4-KN  4 Pin Connector
BA-11 Mounting Bracket (Can be made in custom dimensions)
KB-NGV-01  Enclosure
TSR-42-PR Aluminium Rope Connection Arm
KB-PM Reset Lever