Trine 3258 Series - Round Corner 2-5/8" x 5/8" Electric Strike, Non-Handed

The 3258 is a mortise-type strike with a 1 inch backset, the smallest Trine offers, so it goes into shallow jamb preps where deeper strike bodies won't clear. The faceplate is 2-5/8 x 5/8 inches with round corners. Measure the depth available behind your jamb prep and confirm you have room for a 1 inch backset body before cutting.

No handing to specify. The 3258 is non-handed, so the same unit works on a left hand or right hand opening. That also means you can stock one part for a building with doors swinging both ways.

Fail-secure (the standard action) keeps the door locked when power drops and only releases while power is applied. That is the usual choice for exterior and tenant entry doors, and it draws power only during the release. Fail-safe is the reverse action: the strike unlocks when power is off, which is what you use where the opening has to release on a fire alarm or power loss. Both are offered on the 3258, but the action is fixed by the model you order, not field-changeable, so pick it up front. If you want an electric strike whose action can be flipped in the field, the Hager 2925 and 2928 are field reversible fail safe/fail secure.

The 3258 runs 12/24 VAC/DC, and it ships as either a 12VDC or a 24VDC unit, so match the option to your power supply. It is rated intermittent duty, meaning it is wired for momentary release on a card read or button press, not for continuous energizing. Current draw is low, which matters when you are sharing a supply across several openings.

The latch cavity is 5/8 inch wide, 1-1/8 inch high and 1/2 inch deep, so it takes the standard 1/2 inch throw latchbolt of a cylindrical lockset. It is built for cylindrical lock latches. A deadlatch plunger has to land on the faceplate, not in the cavity, so check your lock's latch face against the 2-5/8 x 5/8 inch plate. If your latch throws 3/4 inch, look at a strike sized for it such as the HES Folger Adam 310-1(X), which covers 1/2, 5/8 and 3/4 inch throw latchbolts.

The Trine 3258 is not fire rated, so on a labeled opening go to a strike that carries the rating. The Adams Rite 7240 is a fire-rated electric strike for cylindrical locksets with 5/8 inch latchbolt projection, which is the same latch throw the 3258 is cut for. The Hager 2930 is a fire rated Grade 1 electric strike for cylindrical and mortise locks with 12/24 VDC dual voltage. The Von Duprin 4211 is Grade 1 and fire rated for cylindrical locks with 12/24 VDC field-selectable operation. The Camden CX-ED1410 and CX-ED1420 are Grade 1 ANSI fire-rated universal strikes.

The Trine 3258 is not outdoor rated. For a gate or any exposed exterior application, the Camden CX-ED1959 Series is an outdoor rated electric gate strike. Keep the 3258 on interior openings where it is protected from weather.

The Trine 3258 uses a 2-5/8 inch by 5/8 inch round corner face plate, which is a short-plate cutout, not the full ANSI prep. If the jamb is already prepped 4-7/8 inches, the Dortronics 3300 Series has a strike plate for ANSI prep at 4-7/8 inches by 1-1/4 inches and runs 12/24VDC with a latch bolt sensing switch. The Adams Rite 7170 is an electric strike for hollow metal and wood jambs with a 1-1/4 inch by 4-7/8 inch faceplate. Both drop into the existing ANSI cutout with no filler.

The Trine 3258 is a cylindrical-lock electric strike with a 2-5/8 inch face plate, 12/24 VAC/DC operation, and both fail-secure and fail-safe versions. The closest cross-brand match on function is the SDC 15 Series, a 5/8 inch latchbolt electric strike with 12/24 VDC operation. The Hager 2925 also takes a 5/8 inch latch and is field reversible between fail safe and fail secure, so one part covers both actions instead of ordering the action up front. The Von Duprin 4211 is a Grade 1 electric strike for cylindrical locks with 12/24 VDC field-selectable voltage. All three work the same 5/8 inch cylindrical latch the 3258 is built around.

The 3258 is a mortise-type strike with a 1 inch backset and a 2-5/8 inch by 5/8 inch face plate, cut for a cylindrical latch in a hollow metal or wood jamb. For an aluminum storefront jamb, the Adams Rite 7100 Series is an electric strike for aluminum jambs with a flat 1-1/4 inch by 4-7/8 inch faceplate, and the Adams Rite 7160 is an electric strike for aluminum jambs with the same 1-1/4 inch by 4-7/8 inch faceplate. Both use the narrow stile faceplate that a storefront jamb is prepped for rather than the short 2-5/8 inch plate on the Trine.

The Trine 3258 is rated 500,000 life cycles with 1,200 pounds holding force and is intermittent duty. For an opening that needs a heavy duty classification, the Alarm Controls AES-100 is a Grade 1 heavy duty electric strike, the Locknetics MDS100 and MS100 are heavy duty strikes, and the Von Duprin 6400 is a Grade 1 modular heavy duty strike for mortise or cylindrical locks in satin stainless steel with a 3-hour UL 10C fire rating in fail-secure. The Trine stays the compact choice at a 1 inch backset; the heavy duty units carry the Grade 1 and duty rating instead.

The Trine 3258 is a cylindrical lock strike and will not receive an exit device latch. For a rim exit device, the SDC 30-4 Series is a 3/4 inch Pullman latchbolt rim mount electric strike in stainless steel, and the Hager 2945 is a fire rated rim exit strike with field selectable fail safe or fail secure and a latchbolt monitor. For surface vertical rod devices, the HES Folger Adam 310-4-2 is a complete Grade 1 electric strike pac for surface vertical rods.

No. The 3258 is built for cylindrical lock latches. A mortise lock needs a strike cut for it, such as the Securitron MUNL Mortise UnLatch or the Von Duprin 6210 for mortise locks. The Von Duprin 6400 is a modular Grade 1 strike that handles mortise or cylindrical.

If the drawing calls out ANSI/BHMA Grade 1, specify a strike that carries the grade: the Alarm Controls AES-100 is a Grade 1 heavy duty strike, the Von Duprin 4211 is Grade 1 and fire rated for cylindrical locks, and the Securitron MUNL is a Grade 1 mortise strike. The Trine 3258 is a commercial strike with 1,200 pounds of holding force and a 500,000 cycle rating, which is what to compare against if the spec is written to performance rather than to a grade.

They are cut for different locks. The Trine 3258 is a cylindrical lock strike with a 1 inch mortise backset and a 5/8 inch wide latch cavity, 1-1/8 inch high and 1/2 inch deep. The Von Duprin 6210 is an electric strike for mortise locks, 24 VDC fail-secure and UL 10C fire rated, and the Securitron MUNL is a mortise UnLatch electric strike, Grade 1 and fire rated. If the door carries a mortise lock with a deadlatch and auxiliary bolt, the 3258 is not the substitute - go to the mortise strike.

The Trine 3258 has a latch cavity 5/8 inch wide, 1-1/8 inch high and 1/2 inch deep, so it is built around a 5/8 inch latch. For a 1/2 inch latchbolt, the SDC 25 Series is a value electric strike for 1/2 inch latchbolt compatibility. For a range of throws in one body, the HES Folger Adam 310-1(X) is a Grade 1 fire rated electric strike body for 1/2 inch, 5/8 inch or 3/4 inch throw latchbolts. On a pair of doors, the Rockwood double door electric strike uses a 3/4 keeper and is Grade 1 fire rated.

The Trine 3258 is a mortise type strike - it is cut into the jamb at a 1 inch backset with a latch cavity 5/8 inch wide by 1-1/8 inch high by 1/2 inch deep. If cutting the frame is not an option, the Locknetics NC450 is a no cut electric strike, and the Camden CX-ED1689L-4 is a fire rated low profile universal strike supplied with 4 faceplates so one body covers several existing preps.

The Trine 3258 uses a round corner face plate measuring 2-5/8 inches by 5/8 inch and is non-handed, so one part serves either hand of door. The SDC 45F Series also has a radius corner faceplate and adds a fire rating with 5/8 inch latchbolt compatibility. Both suit a frame with rounded strike cutouts; the difference is the fire rating and the plate size, since the 3258 plate is the short 2-5/8 inch format.

Two: US26D satin chrome and US10B dark bronze. Both are offered in fail-safe and fail-secure, at 12VDC and 24VDC, so you can match the strike to the lever and hinges already on the opening without giving up an electrical option.

Yes. The 3258 runs on a micro solenoid assembly with silent operation, so there is no buzz on release. That matters on a unit entry off a quiet lobby or a door near occupied space, where a buzzing AC strike gets complained about. If you want an audible buzz as a signal to the person at the door, this is not the strike for it.

The RCI 15BS is an economy electric strike for special offset latch entry with fail-secure operation only, so the action is fixed. The Trine 3258 is offered in both fail-secure and the RS fail-safe action, runs 12/24 VAC/DC, and carries 1,200 pounds holding force at 500,000 life cycles. The Locknetics CS450 and SDC 15 Series are other single-body alternatives, the SDC 15 taking a 5/8 inch latchbolt on 12/24 VDC.