LPT Series Connectors | Demanding Industrial Applications

LPT Series Connectors

LPT series connectors deliver rugged, reliable performance for demanding industrial applications. Engineered with a quick bayonet-coupling interface and robust environmental sealing, LPT series connectors keep power and signal flowing in harsh conditions—on the factory floor, along the rail line, inside renewable energy systems, and across heavy equipment. If you need an easy, secure mate with high resistance to dust, moisture, vibration, and mechanical shock, the LPT family is a proven choice.

On this page

• Why LPT Series Connectors
• Applications
• Key Features
• How to Select
• Benefits for Engineers & OEMs

Why LPT Series Connectors

With a fast, secure bayonet coupling, LPT series connectors give technicians positive tactile feedback and a repeatable, tool-free connection that speeds both builds and field service. Sealing can be specified up to IP67/IP69K to block contaminants during washdown or outdoor exposure. Durable shells and optional strain-relief accessories stand up to vibration, impact, and cable pull in mobile equipment and rail environments. Engineers can choose from wide insert configurations to carry low-voltage control, higher-current power, or mixed power-and-signal in a single connector—reducing part count and simplifying harness design. Clear keying and polarization minimize mis-mating, while compatible backshells streamline maintenance across the product lifecycle.

Related products: For high-current distribution, see SurLok Plus®. For PV terminations, explore H4 PRO. Improve cable ingress protection with GuardXcel™ Cable Glands.

Typical Applications

Across heavy equipment, LPT series connectors support off-highway machinery and agricultural or construction vehicles—from engine compartments to sensor looms. In rail and mass transit, they suit door controls, braking systems, HVAC units, and both under-carriage and wayside equipment. Alternative energy systems use LPT interconnects inside solar combiner boxes, inverters, and tracking systems, as well as in wind nacelles and battery-storage skids. In factory automation, they integrate cleanly into robots, conveyors, PLC I/O, and distributed sensors and actuators. Telecom and utility operators rely on LPT in exposed infrastructure such as outdoor cabinets, base stations, and substations where sealing and reliability are critical.

Key Features

LPT series connectors combine a quick bayonet coupling with environmental sealing to deliver reliable performance in harsh conditions. Corrosion-resistant materials and finishes support outdoor and industrial duty, while multiple insert layouts cover power, signal, or mixed circuits. Cable management options, including backshells, boots, and strain relief, help maintain bend radius and mitigate vibration. Clear coding and polarization reduce assembly errors and downtime. For ingress protection guidelines, review IP rating definitions.

How to Select Your LPT Series Connector

Define circuits and current. Start with the number of contacts and required current/voltage. Pick sealing level. Bayonet is standard—confirm IP67/IP69K based on washdown or outdoor use. Match shell size and keying. Account for space constraints and use polarization to prevent cross-mating. Plan cable exit and strain relief. Add backshells/boots for bend-radius control and vibration resistance. Confirm environmental exposure. Temperature extremes, shock, or chemical contact may influence material and finish choices.

Benefits for Engineers & OEMs

By pairing fast, tool-free bayonet coupling with proven sealing, LPT series connectors cut installation time and reduce risk in dirty, wet, or washdown environments. Mixed power-and-signal layouts simplify harnesses and lower part count, while durable mechanics and corrosion-resistant finishes help extend service life and reduce maintenance cost. The result is a reliable, field-friendly interconnect platform that supports faster builds, fewer errors, and improved uptime.