Eaton PB20B Push Button Enclosures - NEMA 12
Part Number: PB20B
Quick Summary
PB20B Push Button Enclosures by Eaton protect control circuits in harsh industrial environments and small control panels. Engineers frequently wrestle with dust, moisture, and oil ingress, plus the need for quick service access. UL 508A-listed, CSA C22.2-certified, and NEMA-rated protection give auditable safety and reliable compliance for panel builds. With surface mounting, hinged cover, removable cover, external feet, and a 12.25 x 8 x 4.25 inch footprint, PB20B supports compact, scalable installations. That combination also aligns with budgeting needs by reducing enclosure footprint, easing wiring access, and enabling faster preventive maintenance. Engineers value reliability that minimizes unplanned downtime and costs.
Product Information
Extended Description
PB20B Eaton: Eaton B-Line series push button enclosures, 12.25" height, 4.25" length, 8" width, NEMA 12, Hinged cover, PBB enclosure, Surface mounted, Small single door, External mounting feet, Carbon steel, Oil-resistant gasket
Product Name
Eaton B-Line series push button enclosures
Catalog Number
PB20B
UPC
782051700688
Product Length/Depth
4.25 in
Product Height
12.25 in
Product Width
8 in
Product Weight
9 lb
Certifications
UL 508A CSA C22.2. NEMA
Material
Carbon steel
Wall thickness
14 gauge
Finish color
Painted
Color
ANSI 61 gray
Style
Small single door
Model
PBB enclosure
Cover type
Hinged
Mounting method
Surface
Mounting hole details
External mounting feet
Closure type
Hinged
Special features
Removable cover, recessed pull ring, plated screws
NEMA Rating
12
Country of origin
US
Feature: Carbon steel construction with a 14-gauge wall delivers a rugged enclosure that resists impact and oil exposure in demanding factory environments. Business Impact: This durability reduces panel deformation and maintenance costs, extending service life. Application: Ideal for control cabinets in manufacturing, process automation, and machine wiring closets in harsh production areas. Feature: NEMA 12 rating provides protection against dust, moisture, and oil ingress. Business Impact: Minimizes unwanted contamination and heat buildup, boosting uptime and component longevity. Application: Suitable for electrical distribution and control cabinets on factory floors, packaging lines, and automation cells. Feature: 12.25 in height, 8 in width, 4.25 in depth with a 9 lb weight; Surface mounting via external feet; Hinged cover; Removable cover. Business Impact: Balances rugged protection with manageable handling and easy access for wiring and maintenance. Application: Mounting against walls or machines where space is at a premium. Feature: Removable cover, recessed pull ring, and plated screws enable quick service and secure reassembly. Business Impact: Reduces maintenance time and tool loss during field work. Application: Frequent inspection points and field upgrades in automation panels. Feature: UL 508A, CSA C22.2 listings and NEMA 12 certification with US origin support compliance and procurement. Business Impact: Simplifies audits, ensures regulator-aligned protection, and provides traceability for large scale automation projects. Application: Systems integrators and end users pursuing certified enclosure solutions. Feature: External mounting feet and surface-mount design deliver installation flexibility and repeatable mounting patterns. Business Impact: Accelerates installation, reduces misalignment risk, and enables scalable layouts for evolving automation lines. Application: Installation on walls, frames, or cabinet sides across manufacturing environments.
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FAQs
PB20B supports surface mounting via external feet, with a hinged cover and a removable cover that enables fast wiring checks. This combination simplifies wall- or frame-mounted installations, reduces wiring interference during panel reconfigurations, and allows quick future upgrades without replacing the enclosure.
PB20B measures 12.25 inches in height, 8 inches in width, and 4.25 inches in depth, with a nominal weight of 9 pounds. Built from 14-gauge carbon steel, it delivers robust protection while remaining manageable for field technicians during installation and servicing.
Yes. PB20B is a NEMA 12 enclosure built from carbon steel with a painted ANSI 61 gray finish, designed to resist dust, moisture, and oil ingress. Coupled with UL 508A and CSA C22.2 certifications, it meets common regulatory and facility-standard requirements for automated control panels.
PB20B carries UL 508A and CSA C22.2 listings and a NEMA 12 rating, with US origin. These certifications support safety compliance, facilitate audits, and provide traceable assurance for procurement and installation in regulated industrial environments.
The removable cover, recessed pull ring, and plated screws enable fast access to internal components without extensive disassembly. Surface mounting with external feet simplifies initial install and future reconfigurations, while the durable carbon steel construction lowers replacement frequency, cutting long-term lifecycle costs in automation and electrical panels.