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Product Details

 Circuit Breaker Boots  ::  Lever-Actuated
Lever-Actuated Back-of-Panel Mounted (Fig 2)     
Availability:  In-Stock

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Circuit Breaker Boots — Lever-Actuated Back-of-Panel Mounted Boots – IP66/68 Rated

HEXSEAL® and E-SEEL® sealing boots for lever-actuated style circuit breakers are molded from APM’s proprietary RUBRGLAS™ … a transparent high tear-strength silicone rubber which won’t yellow or discolor. Each boot is supplied with APM’s patented self-sealing SEELSKREWS® to insure total sealing integrity for the breaker, its panel cutout, and the boot mounting holes. Front panel mounted boots are also supplied with a plated, steel frame. These tough, flexible boots provide a dust-tight and watertight seal without compromising breaker operation or position status viewing.


Boot: APM-RUBRGLAS (transparent silicone rubber) conforms to ZZ-R-765, Class III Grade 50. Frame: steel.
Screws: SEELSKREWS (self-sealing screws), stainless steel with silicone rubber O-ring.

Temperature Range:         
HEXSEALS: -94°F to +400°F (-70°C to +204°C)
E-SEELS: -80°F to +400°F (-62°C to +204°C)

Pressure Range:               
Dust tight and splashproof.

Operational Life:                
10,000 actuations (minimum)

Shelf Life:                          
Excess of 25 years

Resistant to:                      
Salt spray, weather, UV, sunlight, ozone, corona and most acids.

Military Specs*:                
Most HEXSEALS meet MIL-B-5423 (see selection charts)

Agency Recognition:         
UL & ULC Recognized to UL Std. 50

*APM’s policy is to manufacture our HEXSEAL® sealing boots as defined by the requirements of MIL-Spec B-5423 which we regard as the standard for the switch, circuit breaker and potentiometer industry. These requirements were formulated based on our original patent.


  1. Mounting screws are supplied in lengths shown unless otherwise specified.
  2. New sizes and types of RUBRGLAS-SEELS are being added regularly. Please request other types and styles as required.

About APM's Sealing Boots Division:
The Electronics Division of APM HEXSEAL develops and manufactures environmental protection sealing components for controls that are mounted on switches, potentiometers, encoders, and circuit breakers. Using advanced elastomer molding technology, a broad range of sealing boots are produced to match most controls manufactures’ standard part numbers. Most are IP66/68 ingress protection rated and UL Recognized as meeting applicable Canadian and USA enclosure protection standards.

About APM's Self-Sealing Fastener Division:
The APM line of high-pressure, reusable, self-sealing fasteners includes self-sealing screws, self-sealing nuts, self-sealing bolts, self-sealing rivets, and self-sealing washers, all designed to seal in/out air, water, lubricants and other liquid or gaseous contaminants. This sealing hardware is available in Imperial (inch) and metric sizes with various sealing material and thread-locking options, most of which are UL Recognized Components for Canada and the USA.

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Switch & Circuit Breaker Boots

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Self-Sealing Fasteners & Washers

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SEELBOLT® Self-Sealing Bolts

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SEELOC® WASHER Self-Sealing & Self-Locking Washers

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  HEXSEAL®, SEELSKREW®. SEELBOLT®, SEELNUT®, SEELRIVET®, SEELOC® are registered trademarks of APM Corp.  
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