The H16B-SF-4B-CV-PG21 is a robust rectangular connector housing designed for reliable performance in demanding industrial environments. Built in the standard 16B size, it provides a secure interface for heavy-duty electrical connections while ensuring stable mechanical protection and long service life.
This housing features a sealed lower structure with a side cable outlet and PG21 threaded entry, offering effective strain relief and protection against dust and moisture. The integrated cover and reinforced locking design enhance connection stability, even under vibration or frequent mating cycles.
Manufactured from high-quality die-cast aluminum with a durable surface treatment, the H16B-SF-4B-CV-PG21 delivers excellent corrosion resistance and mechanical strength. It is widely used in automation equipment, machinery, and power distribution systems where safety, reliability, and easy installation are essential.

Technical Data
| Series | Classic regular housing |
| Specifications | 16B |
| Housing type | Sealed lower housing |
| Housing overview | Plastic cap |
| Outgoing method | Side outlet |
| Locking type | Dual lock |
| Thread | PG21 |
| Housing material | Die casting aluminum |
| Housing color | RAL 7037 (field gray) |
| Surface treatment | Powder coating |
| Interlocking method | Metal elastic connection |
| Material | Galvanized iron |
| Seals | NBR |
| Flame retardant rating (UL94) | V0 |
| Working temperature | -40℃ … +125℃ |
| Protection rating | IP65 |
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