littelfuse.com© 2017 Littelfuse Revised: 03/14/17
Specifications are subject to change without notice.
59630 Sensor with Integral Float Actuator
Description
The 59630 is a reed level sensor with integral float actuator and an M8 x
1.25mm pitch thread with a choice of normally open, normally open high voltage,
normally closed or change over contacts. It is capable of switching up to
265Vac/300Vdc at 10VA. It is ideally suited to liquid and air conditioning
condensate and industrial process control applications.
Reed Sensors
Features
• Sensor with integral blown
polypropylene float, with integral
magnet
• Sensor operates when float rises
from end stop position
• Choice of contacts
• Choice of connector and cable
length options
Benefits
• Hermetically sealed, magnetically
operated contacts continue to
operate long after optical and other
technologies fail due to
contamination
• No standby power required
• Simple installation with M8 thread
and nut
Applications
• Liquid level control
• Air conditioning systems
• Industrial Process Control
Dimensions
Dimensions in mm (inch)
Float Sensor > 59630
24.9
(0.98) Integral M8 Nut
M8 Nut
Cable Legth Option±10.00
(0.39)
16.4
(0.65)
43.7
(1.72)
12.0
(0.47)
6.35 NOM. (0.25)
M8 x 1.25
Ø23.
7
(0.93)
Schematics Switch Type
1 and 2
3
4
Black
Black
Black
Blue
White
Black
Black
littelfuse.com© 2017 Littelfuse Revised: 03/14/17
Specifications are subject to change without notice.
59630 Sensor with Integral Float Actuator
Reed Sensors
Activation
Using sensor with float magnet orientated is illustrated
Float Sensor > 59630
Notes:
1. Contact rating - Product of the switching voltage and current should never exceed the wattage rating. Contact Littelfuse for additional load/life information.
2. When switching inductive and/or capacitive loads, the effects of transient voltages and/or currents should be considered. Refer to Application Notes AN108A and AN107 for details.
3. Breakdown Voltage - per MIL-STD-202, Method 301.
4. Electrical Load Life Expectancy - Contact Littelfuse with voltage, current values along with type of load.
5. This resistance value is for 300mm wire length. Resistance varies based on wire length.
6. Operate (including bounce)/Release Time - per EIA/NARM RS-421-A, diode suppressed coil (Coil II).
7. Shock and Vibration - per EIA/NARM RS-421-A and MIL-STD-202.
8. For custom modifications to the wire length or size, or adding a special connector, please contact Littelfuse.
Note:
Normally Open: contacts are open when float is down as shown in the De-activate
view. The contacts close when float is in upward position as shown on the left view.
Normally Closed: Contacts are closed when the float is in the down position.
The contacts open when float is in the upward position as shown in the left view.
Electrical Ratings
Contact Type Normally
Open
Normally Open
High Voltage
Change
Over
Normally
Closed
Switch Type 1 2 3 4
Contact Rating 1VA/Watt - max. 10 10 5 10
Voltage 4
Switching 2
Breakdown 3
Vdc - max.
Vac - max.
Vdc - min.
200
140
250
300
265
400
175
120
200
200
120
250
Current 4
Switching 2
Carry
Adc - max.
Aac - max.
Adc - max.
0.5
0.35
1.2
0.4
0.30
1.4
0.25
0.18
1.5
0.5
0.18
1.2
Resistance 5Contact, Initial
Insulation
Ω - max.
Ω - min.
0.2
1010
0.2
1010
0.2
109
0.2
1010
Capacitance Contact pF - typ. 0.3 0.2 0.3 0.3
Temperature Operating °C -40 to +105 -20 to +105 -40 to +105 -40 to +105
Product Characteristics
Operate Time 6ms - max. 1.0 1.0 3.0 3.0
Release Time 6ms - max. 1.0 1.0 3.0 3.0
Shock 711ms ½ sine G - max. 100 100 50 50
Vibration 750-2000 Hz G - max. 30 30 30 30
Activate
>5.00 (0.20)
Activated De-activated
De-activate
<10.0
0 (0.39)
littelfuse.com© 2017 Littelfuse Revised: 03/14/17
Specifications are subject to change without notice.
Packaging
Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width
Bulk Bulk 500 N/A N/A
Part Numbering System
59630 - X - T - XX - X
Series
Switch Type
Sensitivity
Termination
A, D, or F
Cable Length
02
Reed Sensors
Float Sensor > 59630
59630 Sensor with Integral Float Actuator
Cable Length Specification
Cable Type: 24 AWG 7/32 PVC 105°C UL1430/UL1569
Select Option Cable Length
mm (inch)
02 300 (11.81)
Termination Specification
Termination Options
Select
Option
Description
(Two-wire versions illustrated)
ATinned leads (6.4±0.76)mm
DAMP MTE Connector
2.5mm pitch, 104257-1
FUntinned leads (6.4±0.76)mm
