Reed Sensors Datasheet
59143 Series
Miniature Flange Mount Sensor
Description
The 59143 is a miniature flange mounting reed sensor 23.00 mm x
14.00 mm x 6.00 mm (0.906” x 0.551” x 0.236”) with normally
open contacts.The case design enables mounting with M3 screw
with washer at 1 Nm torque maximum or adhesive mounting. The
wires exit from the right-hand side, see Drawing 2. The 59143 is
capable of switching up to 265Vac/300Vdc at 10VA.
It is well suited for use in a wide range of industrial, appliances, or
IoT proximity sensing applications.
The 59143 series functions best with the matching actuator
57143-000, which is sold separately.
Features and Benefits
■ Non-contact switching
solution for wet & harsh
environments
Dimensions
Dimensions in mm (inch)
Tolerances are +/- 0.25 (0.010) unless otherwise noted.
■ Can operate through
non-ferrous materials (for
example, wood, plastic or
aluminium)
■ Housing design for optimum
adjustability
■ Helps implement efficient
proximity/access and energy
management systems
Actuator (sold separately)
■ Available in select sensitivities
(operating distances)
6.00
23.00
(.906)
(.236)
■ Compact size and easy
installation and effective
concealment in many
applications
■ Standard cable
configurations; customization
options available
Actuator
■ Hermetically sealed, IP67
rated; UL and REACH
compliant
■ UL Recognized per UL 508
and CSA C22.2 No. 14.
3.00
(.118)
3.20x3.81 Typ.
Slot (.126x.150)
14.00
(.551)
■ No leakage current in ‘open’
state−ideal for battery-
powered IoT applications
Sensor (Two-wire version)
23.00
(.906)
6.00
(.236)
(Excluding Encapsulant)
Sensor
Applications
■ Security and access control
■ Major appliances
■ Factory automation
■ Small appliances
3.00
(.118)
3.20x3.81 Typ.
Slot (.126x.150)
14.00
(.551)
■ Process equipment
■ Proximity and limit sensing
Schematics
Switch Type
White
White
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Agency Approvals
Agency
Agency File Number
E61760
Note: Contact Littelfuse for specific agency approval ratings.
© 2023 Littelfuse, Inc.
Specifications are subject to change without notice.
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Revised: GD. 06/16/23