Inductive load

When a Reed switch is used to guide an inductive load such as engines and solenoid valves, the energy stored in the load may cause an inverse voltage when the Reed contact breaks. The voltage depends on the inductance value. The following circuits provide a protection in the cases hereunder mentioned.

GENERAL
- 1. PLASTIC MATERIALS
- 1.1 Mechanical Strength
- 1.2 Thermal resistance
- 1.3 Strength and surface hardness
- 1.4 Resistance to chemical agents
- 1.5 Resistance to atmospheric agents and UV rays
- 1.6 Flame resistance
- 1.7 Electrical properties
- 1.8 Surface finish and cleanability
- 1.9 Compliance with international standards
- 1.10 Competence of ELESA Technical Department
- 2. METAL MATERIALS
- 2.1 Properties of metal inserts
- 2.2 Clamping knobs with threaded inserts (types of assembly)
- 2.3 Pass-through holes
- 2.4 End of threaded studs
- 3. OTHER MATERIALS
- 4. MACHINING TOLERANCES
- 5. FIXED HANDLES
- 6. ASSEMBLY MEASURES
- 7. SPECIAL EXECUTIONS
- 8. COLOURS
- 9. TEST VALUES
- 10. TECHNICAL TABLES
- 10.1 Conversion table
- 10.2 DIN 79 square holes
- 10.3 KEYWAYS
- 10.4 Transversal holes
- 10.5 Threads
- 10.6 IP – Protection classification for cases
- 10.7 MVK – Fixing the threads by self-gluing
- 10.8 PFB – Fixing threads by means of locking action
- 10.9 STAINLESS STEELS
- 10.10 CARBON STEELS, ZINC ALLOYS, ALLUMINIUM AND BRASS
- 10.11 DUROPLASTS: resistance to chemical agents
- 10.12 TECNOPOLYMERS AND RUBBERS: resistance to chemical agents
ADJUSTABLE LEVERS
- General Information
- Push button
- Stress resistance of technopolymer adjustable handles
- Safety adjustable handles
HANDLE WITH PNEUMATIC DRIVE
- Directional control valves
- Symbol
GRADUATIONS
- GRADUATION ENGRAVINGS ON CONTROL KNOBS
ROTARY CONTROLS
- 1. ELESA-CLAYTON ROTARY CONTROLS
- 1.1 Position Indicators
- 1.2 How to select the rotary controls
- 1.3 Special executions
- 2. GRAVITY POSITION INDICATORS
- 2.1 Ratios
- 2.2 Choice of the indicator ratio
- 2.3 Dials
- 2.4 Accuracy
- 2.5 Assembly instructions
- 3. POSITIVE DRIVE INDICATORS
- 3.1 Ratios
- 3.2 Choice of the indicator ratio
- 3.3 Dials
- 3.4 Assembly instructions
BALL TRANSFER UNITS
- Technical Data for ball transfer units
MODULAR ROLLER TRACKS
- General information
- Series
- Guidelines for the choice
LEVEL BUBBLES
- Spirit levels
SPUR GEARS
- 1. INTRODUCTION TO THE TRANSMISSIONS
- 2. TRANSMISSION ELEMENTS
- 2.1 The tooth
- 2.2 Spur gears
- 2.3 Racks
- 3. Technical notes
- 4. APPLICATIONS
- Glossary
RUBBER BUFFERS
- Technical data and guidelines for the choice
HIGH PERFORMANCE VIBRATION DAMPERS
- General information
- Features
- Guidelines for the choice
MAGNETS
- Magnetic materials
- Adhesive forces
- Types of retaining magnets
LEVELLING FEET
- No-slip disks for levelling elements
- Tables of the possible combinations Bases / Stems
HYGIENIC DESIGN
- Technical Data
- Seals
HINGES
- Guidelines for the correct application of plastic hinges
PNEUMATIC FASTENING CLAMPS
- General information
- Features
- Standard accessories
- Special executions on request
ELECTRICAL LEVEL INDICATORS
- Warnings for an effective protection of the Reed switches
- Inductive load
- Capacitive load
- Lamp load
- Wiring capacitance
CASTORS AND WHEELS
- 1. GENERAL INFORMATION
- 1.1 Rubber wheels
- 1.2 Polyurethane wheels
- 1.3 Monolithic (hard tread) wheels
- 2. BRACKETS
- 2.1 Swivel bracket
- 2.2 Fixed bracket
- 2.3 Swivel bracket with brake
- 3. AXLE SET
- 4. LOADS, FRICTION AND FORCES
- 4.1 Sliding friction
- 4.2 Rolling friction
- 4.3 Tractive force
- 5. CHOOSING THE RIGHT WHEEL
- 5.1 Nature and condition of the ground
- 5.2 Environment
- 5.3 Magnitude and nature of the load
- 5.4 Speed and means of traction
- 5.5 Manoeuvrability
- 5.6 Choosing the wheel
- 6. GLOSSARY
- WHEEL/BRACKET COMBINATIONS
Vacuum components
- Introduction to the vacuum
- General features of the rubber compounds
Elastomer springs
- Resistance to chemical agents
- Operating temperature