Littelfuse 59140-4-S-02-A

The 59140 is a miniature flange-mount sensor that occupies only 3.22 cm² (0.500 in²) of board space, available with normally open, normally open high voltage, normally closed, or changeover contact options. The housing design allows mounting with M3 screws and washers at a maximum torque of 1 N·m, or adhesive mounting. Leads exit from the right side as shown in Figure 2; left-side exit models are also available — see the 59141 series. The 59140 can switch up to 265 Vac/300 Vdc at 10 VA. It is well suited for a wide range of industrial, home appliance, or IoT proximity sensing applications. The 59140 series is best used with the companion actuator 57140-000.

• Non-contact switching solution for humid and harsh environments
• Housing design optimized for easy adjustment
• Selectable sensitivity (operating distance)
• Standard cable configuration, customizable
• Sealed design rated IP67, compliant with UL and REACH standards
• Zero leakage current in "OFF" state, ideal for battery-powered IoT applications
• Operates through non-ferromagnetic materials (e.g., wood, plastic, or aluminum)
• Facilitates efficient proximity/access control and energy management systems
• Compact form factor, easy to install, and concealable in many applications
• Compliant with UL 508 and CSA C22.2 No. 14

• Security and access control
• Factory automation
• Process equipment
• Large home appliances
• Small home appliances
• Proximity and limit sensing