Product Description
Micro-switch intended for electric lift truck applications; features momentary SPDT operation, lever actuation, blade terminals, panel mounting, and typical 15A/250VAC contact rating; constructed with polycarbonate housing and stainless steel lever.
Specifications
Electrical
| Contact Rating | 15A at 250VAC |
| Dielectric Strength | 1000V RMS minimum (across open contacts) |
Material & Construction
| Body Material | Polycarbonate resin |
| Actuator Material | Stainless steel lever |
Part Numbers
| Manufacturer Part Number | 1820842 |
Frequently Asked Questions
Q: What are the electrical specifications for the 1820842 micro-switch?
A: SKU 1820842 is rated at 15 Amps at 250VAC with a dielectric strength of 1000V RMS minimum across open contacts. The switch is SPDT momentary operation, meaning it has three terminals and returns to its original position when the actuator is released.
Q: What materials are used in the 1820842 micro-switch construction?
A: The 1820842 features a polycarbonate resin housing with a stainless steel lever actuator. Polycarbonate provides impact resistance and electrical insulation, while stainless steel resists corrosion from moisture and vibration in electric lift truck environments.
Q: Which electric lift truck models use the 1820842 micro-switch?
A: The 1820842 micro-switch is compatible with various electric lift truck and pallet jack models from Crown, Toyota, Raymond, and Hyster. The switch is used in control circuits where momentary signal activation is required. Verify your equipment wiring diagram to confirm compatibility.
Q: How is the 1820842 micro-switch mounted in equipment?
A: The 1820842 uses panel mounting, meaning it is secured through an opening in a control panel or bracket. The switch has blade terminals for direct wire connection, eliminating the need for additional connectors or crimped terminals.
Q: How long does a 1820842 micro-switch typically last?
A: Micro-switch lifespan depends on actuation frequency and operating environment. The 1820842 is rated for thousands of cycles in normal electric lift truck duty. Exposure to moisture, dust, or vibration can reduce lifespan. Replace the switch if it no longer activates reliably or feels loose.
Q: What is the difference between SPDT and SPST micro-switch operation?
A: SPDT (Single Pole Double Throw) has three terminals: common, normally open, and normally closed. This allows one switch to control two circuits. SPST (Single Pole Single Throw) has two terminals and controls only one circuit. The 1820842 is SPDT momentary.