Seat Switches

Delta Systems’ seat switches sense operator presence. Used in conjunction with a machine or vehicle’s safety system, operator presence switches provide a fail-safe condition (shutting down the engine, turning off cutting blades, etc.) when an equipment operator is no longer in the seat. Sealed, unsealed and high-cycle-life Hall Effect styles are available. Choose from twist lock or bolt mounting. With decades of proven reliability, our switches are ideal for rugged gas and electric-powered applications, such as:

  • Outdoor Power Equipment
  • Utility Vehicles
  • Power Sports
  • Construction
  • Farm & Agricultural
  • Asphalt Pavers/Concrete Mixes
  • Light Industrial
  • Material Handling
  • Off-Highway Vehicles
  • Mining

CONTACT US   To request datasheets, pricing, and additional information.

Sealed
Unsealed
Hall Effect

With more OEM’s requiring sealed electrical systems, we’ve upgraded our popular seat switch product line by introducing a new IP67-sealed design installed into the familiar cap and frame assembly. Ideal for applications where protection of sensitive electronics is critical.

Our seat switches are easy to integrate into your application and ruggedly designed to last, equipped with self-cleaning contacts that extend switch life in tough environments where moisture and dirt are constant irritants. Select models are UL listed.

Unsealed Seat Switch Spec SheetS

Electrical Specifications

Attribute
Specification
Maximum Voltage 18 Vdc
Max Current @ 12-14 VDC 3A
Pre-travel .040-.150 inches
Contact Resistance @ Max Current, 83.3mΩ
Cycle Life @ Max Load Inductive 10,000, Resistive 75,000
Operating /Storage Temperature -20°F to 150 °F ( -29°C to 65°C)

Environmental Ratings

Exposure
Specification
Salt Fog ASTM B117. 96 hours
Chemical Resistance ASTM Ref C Fuel, Diesel Fuel, Oil, Antifreeze, Freon, Paint, Latex, Gasoline, Gas with 10% ethanol, WD-40, Battery Acid, Ammoniated Glass Cleaner, Kerosene, GOJO, Fertilizer

Configurations

Product Line
Part number
Electrical Configuration
Mounting Style
Actuation Force
Type
UL File #
IP67
App Prints
Plungers - Seat 6500-01 NO Twist Lock, 3.3" Dia 5.0 +/- 1.5 @ .250" Electromechanical No No
Plungers - Seat 6500-02 NO Twist Lock, 3.3" Dia 4.0 +/- 1.0 @ .300" Electromechanical No No
Plungers - Seat 6500-03 NO Twist Lock, 3.3" Dia 5.0 +/- 1.5 @ .250" Electromechanical No No
Plungers - Seat 6500-04 NO Twist Lock, 3.3" Dia 4.0 +/- 1.0 @ .300" Electromechanical No No
Plungers - Seat 6500-04FR NO Twist Lock, 3.3" Dia 5.0 +/- 1.5 @ .250" Electromechanical No No
Plungers - Seat 6500-51 NC Twist Lock, 3.3" Dia 5.0 +/- 1.5 @ .250" Electromechanical No No
Plungers - Seat 6500-52 NC Twist Lock, 3.3" Dia 5.0 +/- 1.5 @ .250" Electromechanical No No
Plungers - Seat 6500-52FR NC Twist Lock, 3.3" Dia 5.0 +/- 1.5 @ .250" Electromechanical AU3028 No
Plungers - Seat 6500-54 NC Twist Lock, 3.3" Dia 4.0 +/- 1.0 @ .300" Electromechanical No No
Plungers - Seat 6500-56 NC Twist Lock, 3.3" Dia 4.0 +/- 1.0 @ .300" Electromechanical No No
Plungers - Seat 6500-57 NO Twist Lock, 3.3" Dia 5.0 +/- 1.5 @ .250" Electromechanical No No
Plungers - Seat 6520 NO Bolt Mount 4.0 ± 2.0 @ .300" Electromechanical No No
Plungers - Seat 6520-01FR NO Bolt Mount 4.0 ± 2.0 @ .300" Electromechanical AU3028 No
Plungers - Seat 6520-51 NC Bolt Mount 4.0 ± 2.0 @ .300" Electromechanical No No
Plungers - Seat 6520-60 NO Bolt Mount 6.0 ± 2.0 @ .300" Electromechanical No No
Plungers - Seat 6520-604 NO Bolt Mount 6.0 ± 2.0 @ .300" Electromechanical No No
Plungers - Seat 6520-61 NC Bolt mount 6.0 ± 2.0 @ .300" Electromechanical No No
Plungers - Seat 6520-62 NO Bolt Mount 6.0 ± 2.0 @ .300" Electromechanical No No
Plungers - Seat 6520-98 NO Bolt Mount 4.0 ± 2.0 @ .250" Electromechanical No No
Plungers - Seat 6522-02 NO\NO Bolt Mount 2.5 ± 1.0 @ .250" Electromechanical No No
Plungers - Seat 6522-03 NC\NC Bolt Mount 2.5 ± 1.0 @ .250" Electromechanical No No
Plungers - Seat 6522-53 NC\NO Bolt Mount 2.5 ± 1.0 @ .250" Electromechanical No No
Plungers - Seat 6522-683 NC\NC Bolt Mount 6.0 ± 2.0 @ .300" Electromechanical No No
Plungers - Seat 6544-02 NO\NO Twist Lock, 3.3" Dia 2.5 +/- 1.0 @ .250" Electromechanical No No
Plungers - Seat 6544-03 NC\NC Twist Lock, 3.3" Dia 2.5 +/- 1.0 @ .250" Electromechanical No No
Plungers - Seat 6544-53 NC\NO Twist Lock, 3.3" Dia 2.5 +/- 1.0 @ .250" Electromechanical No No
Plungers - Seat 6544-53FR NC\NO Twist Lock, 3.3" Dia 4.6 +/- 1.7 @ .400" Electromechanical AU3028 No
Plungers - Seat 6544-602 NO\NO Twist Lock, 3.3" Dia 5.0 +/- 1.5 @ .250" Electromechanical No No
Plungers - Seat 6544-603 NC\NC Twist Lock, 3.3" Dia 5.0 +/- 1.5 @ .250" Electromechanical No No
Plungers - Seat 6544-653 NC\NO Twist Lock, 3.3" Dia 5.0 +/- 1.5 @ .250" Electromechanical No No
Plungers - Seat 6544-683 NC\NC Twist Lock, 3.3" Dia 5.0 +/- 1.5 @ .250" Electromechanical No No
Plungers - Seat 6544-902 NO\NO Twist Lock, 3.3" Dia 7.0 +/- 1.5 @ .250" Electromechanical No No
Plungers - Seat 6544-983 NC\NC Twist Lock, 3.3" Dia 7.0 +/- 1.5 @ .250" Electromechanical No No

Hall Effect Seat Switch 

Delta Systems’ Hall Effect seat switch generates an electrical signal indicating the presence or absence of an operator in a seat. The switching mechanism is activated by the weight of the operator in the seat. The product is designed to fail safe, meaning the systems interprets the failure as the seat being vacant.

Features & Benefits

  • Long life and durability in harsh environments
  • One million cycle life
  • Few Moving parts minimal wear
  • Sealed, solid state circuitry
  • Fully encapsulated electronics for harsh environments
  • Short circuit protected

Typical applications include construction equipment, material handling equipment, outdoor power equipment, forklifts, rental equipment, agricultural equipment, ATV's, UTV's and other applications where operator presence detection is necessary

Spec Sheet Download

Electrical Specifications

Attribute
6540-006 Specification
6540-007 Specification
Output Signal Voltage, (Actuated) 5 Vdc 5 Vdc
Output Signal Voltage, (At Rest) 1 Vdc Ground
Output Load Resistance >10KΩ >10KΩ
Total travel, inches 0.5 ± 0.1 0.5 ± 0.1
Pre-travel, inches .050-.200 .050-.200
Actuation Force @ 0.300” Deflection, lbs 3.7 +/- 0.5 3.7 +/- 0.5
Cycle Life @ Max Load 1,000,000 1,000,000
Operating/Storage Temperature -40 °F to 185 °F (-40 °C to 85 °C) -40 °F to 185 °F (-40 °C to 85 °C)

Environmental Ratings

Exposure
Specification
Salt Fog ASTM B117. 96 hours
Dust/Water Ingress IEC 60529, IP67

Configurations

Product Line
Part number
Electrical Configuration
Mounting Style
Actuation Force
Type
IP67
App Prints
Hall Effect - Seat 6540-006 1, 5 VDC Bolt Mount 3.7 +/- 0.5 @ .300" Hall Effect Yes
Hall Effect - Seat 6540-007 0, 5 VDC Bolt Mount 3.7 +/- 0.5 @ .300" Hall Effect Yes