Allen-Bradley 440P-WA1B Lever Installation Instructions
Allen-Bradley 440P-WA1B Lever is a limit switch designed for use with 440P-A short lever with wide roller limit switches. It features a nylon roller with a diameter of 13.5 mm and a width of 25.4 mm, as well as a lever radius of 25 mm and a lever length of 40 mm. The lever arm is mounted on a keyed shaft, and the installation includes a washer and hex lock nut. This limit switch provides a reliable and durable solution for various industrial applications. It is recommended to follow the actuation guidelines and torque specifications provided in the installation instructions to ensure optimal performance and longevity.
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Installation and Operating Instructions
Bulletin 440P-WA1B Lever with Wide Roller
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.
This publication does not include all specifications, dimensions, or any special installation considerations.
Refer to the product catalog pages for additional information.
General Data
• Designed for 440P-A short lever with wide roller limit
switches
• Nylon roller
• Roller diameter 13.5 mm (0.53 in.) x width 25.4 mm (1 in.)
• Lever radius 25 mm (0.98 in.)
• Lever length 40 mm (1.57 in.)
• Includes lock nut and washer
Principles, Standards, and Implementation
Operating specifications must be followed. Actuators should
be displaced beyond the point where direct opening action
occurs. If adjustable actuators become loose they may defeat
the direct opening action feature of the limit switch. These
devices are not to be used to directly control a motor.
ATTENTION: To avoid electrical shock and unintended
operation of equipment, disconnect all
power to the limit switch and the controlled
equipment before proceeding with any
repair or adjustment of the limit switch.
IMPORTANT: Installation of Allen-Bradley limit switches should be in
accordance with local and/or national codes. Servicing
energized industrial control equipment can be hazarous if
not in accordance to recommended safety procedures.
Lever with wide roller
shown installed.
Dimensions [mm (in.)]
Instructions
1. Mount lever arm on keyed shaft in desired position.
2. Install washer.
3. Install Hex lock nut.
4. Torque Hex lock nut to 1…1.4 N•m (8.85…12.39 lb•in).
ATTENTION: For safety applications
Rockwell Automation recommends
replacing the complete limit switch.
Bulletin 440P-WA1B Lever with Wide Roller
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE USE.
This publication does not include all specifications, dimensions, or any special installation considerations.
Refer to the product catalog pages for additional information.
General Data
• Designed for 440P-A short lever with wide roller limit
switches
• Nylon roller
• Roller diameter 13.5 mm (0.53 in.) x width 25.4 mm (1 in.)
• Lever radius 25 mm (0.98 in.)
• Lever length 40 mm (1.57 in.)
• Includes lock nut and washer
Principles, Standards, and Implementation
Operating specifications must be followed. Actuators should
be displaced beyond the point where direct opening action
occurs. If adjustable actuators become loose they may defeat
the direct opening action feature of the limit switch. These
devices are not to be used to directly control a motor.
ATTENTION: To avoid electrical shock and unintended
operation of equipment, disconnect all
power to the limit switch and the controlled
equipment before proceeding with any
repair or adjustment of the limit switch.
IMPORTANT: Installation of Allen-Bradley limit switches should be in
accordance with local and/or national codes. Servicing
energized industrial control equipment can be hazarous if
not in accordance to recommended safety procedures.
Lever with wide roller
shown installed.
Dimensions [mm (in.)]
Instructions
1. Mount lever arm on keyed shaft in desired position.
2. Install washer.
3. Install Hex lock nut.
4. Torque Hex lock nut to 1…1.4 N•m (8.85…12.39 lb•in).
ATTENTION: For safety applications
Rockwell Automation recommends
replacing the complete limit switch.
Drwg. No. 10000152373 Ver 00
February 2011
Printed in USA
Mounting Dimensions [mm (in.)]
Torque Specifications
Maintenance
These devices require little maintenance, but routine visual
inspection is recommended to keep foreign debris from
collecting on the exterior actuators and rollers.
Removing the operator head is not recommended as loose
internal components may be lost or improperly re-installed.
Actuation Guidelines
The method of actuation and over travel has significant
influence on the service life of the limit switch. To maximize
the service life, it is recommended to provide an actuator with
a 30° pressure angle and a surface hardness of RC-45 max.
Location Torque
8 mm Hex Lock Nut 1…1.4 N•m (8.85…12.39 lb•in)
ATTENTION: Under no circumstances must the switch
be actuated beyond the mechanical travel
specified. Serious damage to the device
and property could result.
February 2011
Printed in USA
Mounting Dimensions [mm (in.)]
Torque Specifications
Maintenance
These devices require little maintenance, but routine visual
inspection is recommended to keep foreign debris from
collecting on the exterior actuators and rollers.
Removing the operator head is not recommended as loose
internal components may be lost or improperly re-installed.
Actuation Guidelines
The method of actuation and over travel has significant
influence on the service life of the limit switch. To maximize
the service life, it is recommended to provide an actuator with
a 30° pressure angle and a surface hardness of RC-45 max.
Location Torque
8 mm Hex Lock Nut 1…1.4 N•m (8.85…12.39 lb•in)
ATTENTION: Under no circumstances must the switch
be actuated beyond the mechanical travel
specified. Serious damage to the device
and property could result.
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Key Features
- Nylon roller
- Wide roller
- Lever arm mounting
- Lock nut and washer
- Adjustable actuation
- Direct opening action feature
- Designed for 440P-A limit switches
- Durable construction
- Safety features
Related manuals
Frequently Answers and Questions
What is the roller diameter of the 440P-WA1B Lever?
The roller diameter is 13.5 mm (0.53 in.).
What is the purpose of the lock nut and washer included with the 440P-WA1B Lever?
The lock nut and washer are used to secure the lever arm to the keyed shaft.
What is the recommended torque for the hex lock nut on the 440P-WA1B Lever?
The recommended torque is 1…1.4 N•m (8.85…12.39 lb•in).
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