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Circular stainless steel momentary push button switch with silver faceplate and threaded metal body

JacobsParts Inc.

JacobsParts Inc. LTCH-A3 Momentary Push Button Disconnect 16mm IP67 250V 5A

SKU CH-H2RA-BYY27 MPN LTCH-A3

Momentary push button switch with IP67 waterproof rating for 16mm panel cutout, rated 250V 5A

  • TypePush Button
  • Voltage250 Volts
  • MaterialMetal
  • FeaturesWaterproof
  • Momentary action gives temporary power for starter or horn circuits
  • IP67 rated stainless steel withstands heavy rain and splashes
  • Fits 16 mm panel cutout with 11 mm thread depth
  • Rated 250 V AC/DC at 5 A for reliable switching
  • Operates from -20 °C to 55 °C in harsh environments

Momentary SPST Switch for Temporary Circuits

The JacobsParts LTCH-A3 is a stainless-steel push button rated 250 V AC/DC at 5 A for momentary activation. It suits automotive starters, marine horns, computer power switches and similar low-voltage projects where current flows only while the button is held.

16 mm Panel Cutout with IP67 Sealing

The switch requires a 16 mm (5/8") mounting hole and provides an IP67 protection rating against water and dust ingress. A stainless-steel faceplate of 18 mm diameter, included metal nut and optional rubber O-ring complete the panel installation.

Operating Range -20 °C to 55 °C

The unit operates from -20 °C to 55 °C with no active cooling required. As a passive mechanical component it draws no standby power and produces no audible noise during normal momentary operation.

Highlights

  • Momentary action gives temporary power for starter or horn circuits
  • IP67 rated stainless steel withstands heavy rain and splashes
  • Fits 16 mm panel cutout with 11 mm thread depth
  • Rated 250 V AC/DC at 5 A for reliable switching
  • Operates from -20 °C to 55 °C in harsh environments

Specifications

TypePush Button
Voltage250 Volts
MaterialMetal
BrandJacobsParts
ModelLTCH-A3
FeaturesWaterproof

Questions about this item

What does the 250 V 5 A rating mean once the switch is wired into a real circuit?

The switch is rated to carry up to 5 A at 250 V AC or DC, so in a lower-voltage circuit the same 5 A limit still applies — do not exceed the current rating.

How does the SPST normally-open circuit type affect what the switch can control?

SPST normally open means the circuit is off until the button is pressed; pressing closes the single contact and releasing opens it again, giving momentary on-only action.

What panel cutout and thread depth are needed to mount this 16 mm switch?

Drill a 16 mm (5/8") hole; the threaded neck is 11 mm (1/2") deep and the total depth including contacts is 21.5 mm (7/8").

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