Hawke International 501-421-UNIV-M20 Hawke 501/421 Universal Barrier gland, the original Ex d barrier gland. Compound-sealed around individual conductors for flameproof integrity. Used in fixed and flexible installations for power, control, signal and data across industrial, marine and building services applications.
| Material | Brass, nickel-plated |
| Standard | IEC/EN 60079-1 |
| Temperature range | -60°C to +80°C |
| IP rating | IP66/IP68 |
| Approval | ATEX II 2G Ex db IIC Gb, II 2G Ex eb IIC Gb, IECEx, CE, DNV, ABS |
| Standards | IECEx, ATEX Directive 2014/34/EU |
| Approvals | DNV, ABS, CE, ATEX |
| HS code | 8536.90 |
| Thread size | M20 |
| Material | Brass, nickel-plated |
| Temperature range | -60°C to +80°C |
| IP rating | IP66/IP68 |
| Primary standard | IEC/EN 60079-1 |
| MOQ | 1 |
Use in Ex d enclosures. Requires compound fill at installation.