The LP16 is a threaded circular connector family that occupies the middle ground between the compact M12 and the larger industrial circulars — 16mm-class shells, multi-pin configurations, and sealed variants that serve outdoor equipment, lighting, energy and instrumentation applications. This guide covers the LP16 system and the harness construction around it, using the C03PE-01-001 sealed configuration as the working example.
The LP16 System in Brief
LP16 connectors provide: threaded locking couplings (vibration-resistant where push-pull latches aren't enough), multi-pin signal and power configurations (typically 2 through 12+ pins depending on the series variant), and sealed constructions rated IP67-class when mated with properly specified cable and glands. They compete in the space where M12's pin counts or current feel limiting but full industrial circular systems feel oversized — a real and common niche in lighting, small energy equipment and instrumentation.
Reading the Part Number
LP16 designations encode the configuration: shell size, pin count/contact arrangement, termination style, and sealing class. The C03PE-01-001 configuration describes a sealed multi-contact arrangement with solder or crimp termination per the suffix coding — and the discipline with any LP16 variant is reading the manufacturer's specific datasheet rather than assuming family conventions, because LP16 coding has more supplier variation than the M12 standard does. The harness drawing should carry the full part number and pin map, not the family shorthand.
Sealed Harness Construction
An IP-class LP16 harness holds its rating through the sealing chain (our waterproof selection guide maps it in full): the connector's mating-interface seal (undamaged, mated to spec), the cable gland or overmold at the cable exit (the classic leak point — cable OD inside the gland's qualified range, or overmolded for a fused bond), and routing that never pools water at a connection. Overmolded LP16 harnesses are the reliability upgrade where the application justifies tooling: one sealed body from connector to jacket, strain relief engineered into the mold shape.
Applications
- Outdoor lighting: driver-to-fixture and inter-fixture connections in architectural and street lighting.
- Energy equipment: small solar tracking, storage auxiliary and monitoring connections.
- Instrumentation: multi-signal field connections where M12 pin counts run out.
- Transport and machinery: sealed auxiliary connections exposed to weather and washdown.
Assembly Quality Requirements
Production quality for sealed LP16 harnesses: contact terminations (crimp with calibrated tooling or solder per spec — our crimp guide covers the discipline), verified seating and locking at assembly, 100% electrical test, and leak verification for waterproof-class builds (air-leak testing where the construction supports it, immersion testing at design validation — our waterproof test guide details both). Documentation: pin map, sealing class, and test evidence per lot.
Kaweei LP16 Harness Manufacturing
Kaweei builds LP16-series waterproof harnesses — standard configurations like C03PE-class assemblies and custom pin maps, glanded and overmolded constructions, leak-tested waterproof builds — from our Dongguan facility. Contact our engineering team with your LP16 configuration and environment; our M12 and waterproof guides cover the adjacent systems.