Data connector

electrical power supplycircularlocking

Product overview
The M28 5‑pin waterproof circular connector is a bayonet‑locking, IP67‑rated electrical connector designed for outdoor LED luminaires and industrial control systems. It features copper‑alloy Φ3.0mm contacts rated 40A, a 90° bayonet lock with anti‑vibration retention and compatibility with cable diameters Φ10.0mm–Φ19.0mm.

Key specifications

• Current rating (5‑pin) – 40A (rated)
• Contact size – copper alloy contacts Φ3.0mm (5‑pin variant)
• Protection – IP67 (IP68/IP69K optional on some models)
• Connecting mode – 90° bayonet locking with anti‑vibration feature
• Cable compatibility – outer diameter Φ10.0mm–Φ19.0mm
• Operating temperature – -40℃ to +105℃ (some variants up to +125℃)

Product specifications (overview)

• Pin number – 2 Pin / 3 Pin / 4 Pin / 5 Pin
• Pin diameter × count – 4.8mm (2P), 4.8mm (3P), 3.6mm (4P), 3.0mm (5P)
• Current rating – 80A (2P/3P), 60A (4P), 40A (5P)
• Voltage rating – up to 300V (varies by configuration; 5‑pin shown as 125V+60V in datasheet)
• Withstanding voltage – 600V (2P/3P/4P), 300V (5P)
• Cable diameter range – Φ10.0mm–Φ19.0mm (all variants)
• Protection level – IP67 (standard)
• Flame retardancy – UL94‑V0
• Durability – >500 mating cycles (typical)

Key advantages & product features

• Reliable waterproof and dust protection rated IP67; IP68/IP69K available as customization for specific models.
• High current capability for compact multi‑pin configurations (40A on 5‑pin variant).
• Quick bayonet 90° twist lock with anti‑vibration retention for secure connections in harsh environments.
• Wide operating temperature range and UL94‑V0 flame‑retardant housing for industrial and outdoor use.
• Designed for long service life with high mating cycle durability.

Technical specifications

• Series: M28
• Model: 5‑pin variant (M28, bayonet locking)
• Contact material / size: copper alloy, Φ3.0mm (5‑pin)
• Current rating (5‑pin): 40A
• Voltage rating (reference): up to 125V+60V (5‑pin entries in datasheet); other configurations up to 300V
• Withstanding voltage (5‑pin): 300V
• Insulation / housing flame rating: UL94‑V0
• Protection: IP67 (temporary immersion and dust)
• Cable outer diameter range: Φ10.0mm–Φ19.0mm
• Connecting mode: Bayonet lock (90° twist, anti‑vibration)
• Operating temperature: -40℃ to +105℃
• Certifications: ISO9001, CE, UL, RoHS

Typical applications

• Outdoor LED luminaires and street lighting
• Industrial control panels and machinery
• Energy storage and power distribution in harsh environments
• Signage, exterior architectural lighting, and other outdoor electrical installations

Certifications & compliance

• Series / product standards: ISO9001 manufacturing reference
• Certifications: CE, UL, RoHS; TUV certification available for some series/models