Hammond: HYPB Series – Hygienic Type 4X Stainless Steel Pushbutton Enclosure

July 11, 2025
HYPB Series Provides Effective Protection in Harsh, Hygienic Environments
Hammond’s HYPB series is designed to enclose pushbuttons and indicators while protecting against harsh, hygienic environments. This enclosure is sloped on 4 sides to prevent water from resting on top regardless of enclosure orientation. Its hex head design screws and door-edge mounted silicone gasket allow for easy cleaning in hose-down environments. A wide range of sizes and practical accessories make the HYPB series product line a complete package.
Specifications
Construction
- Formed 304 stainless steel.
- Sloped 3° on all 4 sides.
- Continuously welded seams ground smooth.
- Hex head screw cover can be completely removed for modifications.
- Silicone gasket mounts around entire door edge allowing for efficient cleaning in hygienic environments.
- Multiple pushbutton hole configurations with either 22.5mm or 30.5mm notched holes.
- No pre-drilled wall mounting holes allow for flexible mounting alternatives – weld-in-place, stand-offs.
- Bonding stud provided on door and grounding stud installed in enclosure.
- Gasket can be easily removed and re-installed for cleaning or replacement; Additional silicone gaskets can be ordered separately.
Finish
- Cover and enclosure are natural stainless steel with a smooth #4 dairy finish.
Standards
- CSA Type 3R, 12, 4, 4X
- UL 508A Type 3R, 12, 4, 4X
- NSF – ANSI 169
- Not all accessories shown maintain NSF standard. Some are internal and NSF is not applicable. Refer to each accessory individually or call factory for specifics.
- Complies with
- NEMA 3R, 12, 4, 4X
- IEC 60529, IP69, IP69K

















