HES 4500-131 4500 Filler Block, Installs To Strike Lip Bottom, For Retrofit Applications

The 4500-131 is a filler block that mounts to the bottom of the strike lip on an HES 4500 electric strike. It takes up the gap left in the frame cutout when the 4500 is dropped into an opening that was prepped for something else, which is why it is sold for retrofit work rather than new prep.

Only on a retrofit. If you are cutting fresh frame prep for the 4500, the strike fills its own cutout. The 4500-131 exists for the case where the existing cutout is deeper than the 4500 needs and you want a finished, supported strike lip instead of an open gap under it.

Accessory only. Ordering the 4500-131 gets you the filler block; the 4500 electric strike, its faceplate and any power supply are separate line items.

No. The 4500-131 is a filler block that installs to the bottom of the strike lip on HES 4500 electric strikes in retrofit applications, so it is sized to that specific strike body and is not interchangeable with another manufacturer's accessory. The closest items from other brands are accessories for their own hardware rather than for an electric strike cutout: Securitron offers the SAM Surface Mount Kit accessories and the SWB SAM wood bracket, and Command Access offers field-installable switch kits such as the SCHLBMKIT-ML latchbolt monitor for Schlage L9000 mortise locks. If the job is filling a gap left in a frame prep under a 4500 strike lip, the 4500-131 is the part to order.

It is a 4500 part. The designation ties it to the HES 4500 series strike and its lip geometry, so treat it as 4500-specific rather than a universal frame filler for other HES bodies.

Yes, it is a commercial door hardware accessory and carries a Grade 1 designation, which is the heaviest duty tier in the ANSI/BHMA grading scheme and what institutional and multi-family specs normally call for on an access controlled opening.

No wiring. The filler block is a mechanical installation accessory that sits under the strike lip. The electrical connections all belong to the 4500 strike body itself; the block just closes out the frame cutout.

The 4500-131 is a mechanical filler block for the bottom of a 4500 strike lip and has no switching or signaling function of its own. For signaling, the peer products to look at are the RCI 914 Series delayed egress sounder with field-selectable volume up to 102dB, the Adams Rite 29-0218 piezo electric horn with multi-voltage compatibility, or, for a request-to-exit contact in the lock rather than the frame, the Command Access REX-KIT-ML request to exit kit for ML1-Series mortise locks. Those are additions to the opening, not replacements for the filler block, so a retrofit that needs both will use the 4500-131 alongside them.

No. The 4500-131 is a filler block that mounts under the strike lip, so it contributes nothing electrical even though it belongs to a powered product family. Power and transfer components are separate line items: the Adams Rite 4605 regular transformer steps 115 VAC down to 12/24 VAC with a 40 volt-amp output, the RCI 9500/9501 Series mortise pin transfer is a tamper-resistant 1.5A 24VAC path from frame to door, and the Locknetics RDB4 is a four-output relay distribution board. Budget those separately from the filler block on a retrofit.

The HES 4500-131 filler block is rated Grade 1 and specified for commercial use, while the Securitron glass door accessories carry a Grade 2 rating. For a spec that calls out Grade 1 hardware throughout the opening, the 4500-131 meets that line; the Securitron glass door parts are also a different application, serving a glass door rather than a framed opening with an electric strike cutout.

Several accessories get grouped near it and do not serve the same purpose. The Securitron SB-MXD exit delay sex bolt is fastening hardware for an exit device, the Dortronics 6510/COV anti-tamper alarm cover fits 6500 Series pull stations and 5000 Series push buttons, the DynaLock 6451-36 exit sensor bar is sized for a 36 inch door, and the LCN 2010-3034 track roller with a 1/16 inch shoulder is a door closer component. None of those fill the gap beneath a 4500 strike lip in a retrofit frame prep, which is what the 4500-131 is made to do.

Depends what the opening needs. For request to exit signalling off a mortise lock there is the Command Access REX-KIT-ML field installable kit, and for latchbolt monitoring on Schlage L9000 mortise locks the Command Access SCHLBMKIT-ML with an SPDT switch. Power for a strike can come off an Adams Rite 4605 transformer, 115 VAC in to 12/24 VAC out at 40 volt-amps. None of those substitute for the 4500-131; they are the other pieces that usually go on the same job.

That is the normal use for it. When you are swapping older strikes out door by door across a portfolio, the frame cutouts rarely match the new body, and the 4500-131 handles that under the strike lip without reworking the frame. Keeping a few on the truck saves a second trip on openings where the old prep turns out oversized.