Reed Sensors Datasheet
59040 Reed Sensor
Description
The 59040 Press-Fit Reed Sensor is a small, cylindrical reed
sensor 31.0 mm (1.22”) long that presses into a 9.5 mm (.375”)
diameter hole with a choice of normally open, normally closed or
change-over contacts. It is capable of switching up to 200 Vdc at
10 W Contact rating. Extensive range of sensitivity with specified
cable length is available. The housing color is white. It has three
crush ribs along the length of the capsule that allow a firm and
fixed press-fit.
59040 is well suited for use in a wide range of industrial,
appliances, or IoT proximity sensing applications. It functions best
with the 57040 or 57041 actuators.
Features & Benefits
■ Easy press-fit installation
■ Can operate through
non-ferrous materials (for
example, wood, plastic,
or aluminum)
■ Non-contact switching
solution for wet &
harsh environments
Additional Information
■ Available in select
sensitivities
(operating distances)
■ No leakage current in ‘open’
state−ideal for battery-
powered IoT applications
■ Standard cable
configurations; customization
options available
■ Helps implement efficient
proximity/access and energy
management systems
Resources
Accessories
Samples
■ UL Recognized per UL 508
and CSA C22.2 No. 14.
■ Compact size and easy
installation and effective
concealment in
Agency Approvals
many applications
■ Hermetically sealed, IP67
rated; UL and
REACH compliant
Agency
Agency File Number
E61760
Note: Contact Littelfuse for specific agency approval ratings.
Applications
■ Security and access control
■ Major appliances
■ Factory automation
■ Small appliances
■ Process equipment
■ Proximity and limit sensing
© 2023 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 09/14/23
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