Product Overview
The Littelfuse 59022 Reed Sensor is a compact, hermetically sealed cylindrical sensor designed for non-contact switching in a variety of industrial, appliance, and IoT proximity sensing applications. It offers a choice of normally open, normally closed, or change-over contacts, capable of switching up to 200 Vdc at 10 W. Its IP67 rating, UL and REACH compliance, and ability to function through non-ferrous materials make it ideal for wet, harsh environments and applications requiring efficient proximity/access and energy management. The sensor is well-suited for security and access control, factory automation, process equipment, and appliance sensing. It functions optimally with the 57022 actuator and is available with various sensitivity and cable length options.
Product Attributes
- Brand: Littelfuse
- Product Series: 59022
- Actuator Series: 57022
- Housing Material: 20% GF P.B.T
- Color: Black
- Sealing: Epoxy
- Certifications: UL Recognized per UL 508 and CSA C22.2 No. 14, REACH compliant
- Ingress Protection: IP67 rated
Technical Specifications
| Specification | Normally Open (1) | Change Over (3) | Normally Closed (4) |
| Contact Rating (VA/Watt) - max. | 10 | 5 | 5 |
| Switching Voltage (Vdc) - max. | 200 | 175 | 200 |
| Switching Voltage (Vac) - max. | 140 | 120 | 175 |
| Breakdown Voltage (Vdc) - min. | 250 | 200 | 200 |
| Switching Current (Adc) - max. | 0.5 | 0.25 | 0.25 |
| Carry Current (Adc) - max. | 1.2 | 1.5 | 1.5 |
| Contact Resistance, Initial () - max. | 0.2 | 0.2 | 0.2 |
| Insulation Resistance () - min. | 1010 | 109 | 109 |
| Capacitance (pF) - typ. | 0.3 | 0.3 | 0.3 |
| Operating Temperature (C) | -40 to +105 | -40 to +105 | -40 to +105 |
| Operate Time (ms) - max. | 1.0 | 3.0 | 3.0 |
| Release Time (ms) - max. | 1.0 | 3.0 | 3.0 |
| Shock (7 11ms 12 sine) G - max. | 100 | 50 | 50 |
| Vibration (7 50-2000 Hz) G - max. | 30 | 30 | 30 |
| Sensor Dimensions (Dia. x L) | 5.80 mm (0.228) x 25.4 mm (1.00) |
| Actuator Dimensions (Dia. x L) | 5.80 mm (0.228) x 25.4 mm (1.00) |
Technical Specifications - Sensitivity Options
| Option | Switch Type | Pull-In AT Range | Activation Distance (mm) | Deactivation Distance (mm) |
| S | 1 (Normally Open) | 12-18 | 5.1 | 17 |
| S | 3 (Change Over) | 15-20 | 5 | 15.5 |
| S | 4 (Normally Closed) | 15-20 | 5 | 15.5 |
| T | 1 (Normally Open) | 17-23 | 3.8 | 15.5 |
| T | 3 (Change Over) | 20-25 | 4 | 14 |
| T | 4 (Normally Closed) | 20-25 | 4 | 14 |
| U | 1 (Normally Open) | 22-28 | 2.5 | 14 |
| U | 3 (Change Over) | 25-30 | 3 | 12 |
| U | 4 (Normally Closed) | 25-30 | 3 | 12 |
Technical Specifications - Termination Options
| Option | Description | Cable Type | Cable Length (mm [inch]) |
| A | Tinned leads (6.40.76)mm | 24 AWG 7/32 PVC 105C UL1430/UL1569 | 02: 300 +/- 10.00 [11.81 +/- 0.394]
05: 1000 +/- 10.00 [39.37 +/- 0.394] |
Technical Specifications - Packaging
| Cable Length Code | Packaging Type | Quantity |
| 02 | Bulk | 2000 |
| 05 | Bulk | 1500 |
