The H16B-SFH-4B-PG21 is a heavy-duty rectangular connector housing designed to provide secure and reliable electrical connections in industrial applications. With a standard 16B size, it offers strong mechanical protection and ensures stable performance in demanding environments.
This model features a sealed housing design with a PG21 threaded cable entry, enabling secure cable installation and effective strain relief. The robust structure helps protect internal components from dust, moisture, and mechanical impact, while the reliable locking mechanism ensures stable connections even under vibration or frequent mating conditions.
Manufactured from high-quality die-cast aluminum with a durable surface treatment, the H16B-SFH-4B-PG21 provides excellent mechanical strength and corrosion resistance. It is widely used in industrial automation, machinery, control systems, and power distribution equipment where high reliability, safety, and long service life are required.

Technical Data
| Series | Classic regular housing |
| Specifications | 16B |
| Housing type | Sealed lower housing |
| 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 as per UL94 | V0 |
| Working temperature | -40℃ … +125℃ |
| Protection rating | IP65 |
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