SKU: 36768699148

Anti Trip - Hercules O Shield (511-B4O)

Sale price$139.59 Regular price$155.10
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Description

Anti Trip - Hercules O Shield (511-B4O)NEMA Type 2, 4 & 13 UL ENCLOSURE 2, 4 & 13 CSA ENCLOSURE 2, 4 & 13 EN 60529 Degree of Protection IP56 DRIP TIGHT DUST TIGHT WATERTIGHT OIL TIGHT ADVANCED DESIGN HELPS PREVENT ACCIDENTAL ACTUATION MATERIALS OF CONSTRUCTION: Treadle and housing constructed from cast iron for strength and durability Protected by a strong cast aluminum shield Special AirVal models available to the O. E. M. on special order Painted Alert Orange Single 3 4 14 N. P. T.

NEMA Type 2, 4 & 13 • UL ENCLOSURE 2, 4 & 13

CSA ENCLOSURE 2, 4 & 13

EN 60529 Degree of Protection IP56


DRIP TIGHT • DUST TIGHT • WATERTIGHT • OIL TIGHT


ADVANCED DESIGN HELPS PREVENT ACCIDENTAL ACTUATION

MATERIALS OF CONSTRUCTION:

• Treadle and housing constructed from cast iron for strength and durability

• Protected by a strong cast aluminum shield

• Special AirVal models available to the O.E.M. on special order

• Painted Alert Orange

• Single 3/4”-14 N.P.T. threaded conduit entry is standard


FEATURES & BENEFITS:

• Heavy duty foot switch features an anti-trip treadle mechanism that helps prevent accidental actuation through unintentional stepping on foot treadle

• Switch operation requires that the latch trip lever be released prior to depressing the foot treadle as in-line foot pressure is applied to the latch trip lever located at the rear of the foot treadle

• Smooth trip lever release and treadle depression motion results in good rate of ­operation

• Dual treadle return springs and latching mechanism

• Anti-skid rubber feet and 3 holes for rigid mounting to floor or equipment

• All Models have a neoprene Cover Gasket plus O-Rings on the Actuating shaft and separate ground screw


OPTIONS:

• Oversize “O”  and “OX” Shield models accept oversized safety shoes and metatarsal foot guards.  The “OX” Shield has an additional 3/4” (19.1 mm) opening height as compared to the “O” shield

• Special Dual 1/2”-14 N.P.T. threaded conduit entry and metric sizes available to the O.E.M. on special order

• Special Twin & Triple models available to the O.E.M. on special order

• Gated Models available for additional protection (See pages 25 & 26 for details)

• RF Wireless models are available

 

  Warning: This Product can expose you to chemicals including Nickel, which is known to the sate of California to cause cancer and birth defects or other reproductive harm. For more information please visit www.p65warnings.ca.gov

 

Dimensions

SIZE (HxWxD):

5.31 x 5.88 x 9.13 in.

WEIGHT:

8.00 lbs.

 

Agency Approvals  EN 60529 Stage Circuit Form Electrical Ratings
    IP56


Single

DPDT DB

Z

 

15 A 125-250 VAC
1/2 H.P. 125 VAC

1 H.P. 250 VAC
Heavy Pilot Duty 250 VAC Max.

 

One pole of these models has an adjustable actuating mechanism that enables you to make or break one pole before the other.   EXAMPLE: You can break the N.O. Circuit long before you would remake a N.C. Circuit in a 511-B2

Double Break models must be wired to equal voltage sources and the same polarity. The loads should be on the same sides of the line.

View Data Sheet - Link to data sheet

Replacement Part - 534-U6

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 36768699148

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RW
Lowell, US
★★★★★ 5
Good Quality and Easy to Install and
Model: iPad A16 11th 2025 /10th 2022
This glass protector was the easiest one i have ever used. went in on easily and only a couple of bubbles that were easy to push out. It seems to be made with quality material and fits perfectly. Got the first one right so now i have a spare.
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Reviewed in the United States on May 31, 2026
M
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M. Inglee
San Leandro, US
★★★★★ 5
Very nice case
Model: iPad A16 11th 2025 /10th 2022
Fits well. Very sturdy. Looks great and was easy enough for a 9 year old to install ;-)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
A
Verified Purchase
AD Burrows
Los Angeles, US
★★★★★ 5
The perfect screen protector.
Model: iPad A16 11th 2025 /10th 2022
What a great product! I’ve used this brand in the past for my iPhone & and iPads, always found them easy to install & the crystal clear HD quality is amazing. It’s easy to align & comes with two just in case you mess up otherwise you have a spare as a backup. Worth every penny.
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Reviewed in the United States on May 16, 2026
R
Verified Purchase
rebecca
Bozeman, US
★★★★★ 5
Glass screen cut shield
Model: iPad A16 11th 2025 /10th 2022
This is a great product. I’ve used on every phone I’ve owned and now I’m using it on my tablets. Wouldn’t use anything else. Love it. Price is great and the product works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
T
Verified Purchase
T'Quanda
Bozeman, US
★★★★★ 4
Clear protection with easy installation
Model: iPad 9th/8th/7th Gen 10.2 Inch, Model: iPad 9th/8th/7th Gen 10.2 Inch
The ProCase screen protectors fit my iPad 7th generation well and provide clear protection without affecting touch sensitivity or screen clarity. The installation process was very simple, Unfortunately I did have some trouble with bubbles forming in the corner after applying the first one, which was a bit difficult to fully smooth out. The second protector went on slightly better, but it still required extra effort to get a perfect finish. Despite that issue, the screen protector still does its job well in protecting against scratches and daily wear. It also comes in a 2 pack, which adds good value in case one is applied incorrectly. It’s a solid product for protection, but the installation can be a little tricky if you want a completely flawless, bubble free look
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026

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