SKU: 28440227798

Anti Trip - Hercules O Shield (511-B4OA)

Sale price$149.65 Regular price$166.28
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Description

Anti Trip - Hercules O Shield (511-B4OA)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


Two

SPDT DB

Z

 

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

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

 

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.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • 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: 28440227798

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4.8 ★★★★★
Based on 17 reviews
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B
Verified Purchase
Brenda Dowers
Grantham, US
★★★★★ 5
Great for aggressive chewers
Size: Medium, Product Packaging: Standard Packaging
Puppy loves it, heavy duty first toy he didn't chew apart
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
M
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MissouriMule1
Chelsea, US
★★★★★ 5
KONG RING
Size: Small (Pack of 1), Product Packaging: Standard Packaging
My chesky terrier LOVES to play fetch with this ring. It is durable, NO squeaker which makes me happy, a nice solid weight. She weighs 22 lbs and I got the small. I do NOT let her chew on this after her playtime.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
J
Verified Purchase
Juls
Cuba, US
★★★★★ 4
Non destructive toy
Size: Small (Pack of 1), Product Packaging: Standard Packaging
2nd one our dogs favorite.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
J
Verified Purchase
Joshua Pasley
Lexington, US
★★★★★ 5
Great for chewers!
Size: Small (Pack of 1), Product Packaging: Standard Packaging, Size: Small (Pack of 1), Product Packaging: Standard Packaging
Our girl loves her new toy. She is super protective over it and goes crazy chewing it. The material and quality are great. She hasn’t made a dent in it yet. It’s light weight and true to size perfect for a puppy or small dog. It can be washed off easily since it’s made of rubber. If you want something your dog can solo play with that doesn’t squeak it’s perfect. The shape makes it great for carrying around by your pup or even playing tug of war between two dogs. Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
M
Verified Purchase
MsBWKWJ
Lake Worth, US
★★★★★ 5
Recommended by my veterinarian
Size: Small (Pack of 1), Product Packaging: Standard Packaging
My veterinarian recommended the red Kong as a chew toy. I’d been buying my 13 lb, now 7 yrs old dachshund the flavored nylabone chew toy products “for aggressive chewers” since he was about a year old. He loves them and would chew them daily. All seemed well. On his last checkup the veterinarian even said that his mouth looked good, but we both could see that there was a brown tartar buildup on his back teeth. Since our veterinarian’s practice has one veterinarian who has dental training, I decided to arrange for a teeth cleaning for my dog. Unfortunately, although none of us expected it, once the tartar was removed from the back teeth it was clear that the teeth had cracks. One large tooth was even chipped down to where we could see the pulp! (Yes, I did note that he occasionally would suddenly squeal when chewing his nylabone, but I thought it was because he’d hit one of the sharp points on a well-chewed nylabone.) The vet recommended that two of the teeth be removed while the dog was still asleep. Then he recommended the red Kong chews for him and said that he would never recommend the nylabone for any dog. They are just too hard and he’s seen too many dogs (of all sizes) end up with cracked and chipped teeth that he (the vet) thinks could have been avoided. He recommended the red Kong for my small dog. The black Kong chew toys are harder and more suited for larger breed aggressive chewers. So far my dachshund is satisfied with chewing the Kong, so that’s what I’ll be buying from now on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 14, 2024

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