By Kent · Lock Depot Staff Writer

Trine's light commercial strikes come in three faceplate widths

Trine's 00-series electric strikes cover the same job, a fail-secure strike behind a mortise lockset on a light-traffic interior door, office, storage room, utility closet, that sort of opening. They are not the heavy-duty EN series, and Trine doesn't pretend otherwise. What actually separates one part number from the next in this line is the faceplate footprint, and that's the one spec worth checking against the existing strike prep before you order, because these three are not interchangeable at the cutout.

Standard ANSI prep: 012 series

The Trine 012 carries a 4-7/8" x 1-1/4" faceplate, the standard ANSI strike cutout used on most commercial hollow metal and wood frames. If the door already has a strike prep and you're replacing a dead unit with the same footprint, this is the size most existing openings are already cut for. Trine builds the 012 with a wider keeper pocket than its 001-series sibling, so it accommodates a latchbolt with a deeper throw where a narrower keeper would bind.

Mid-size faceplate: 004C series

The Trine 004C steps up to a 6-1/4" x 1-3/8" faceplate. Reach for this size when an existing cutout or a retrofit into an older strike box is already longer than the standard ANSI prep and the 012's shorter plate would leave exposed frame on either end. It runs the same fail-secure operation and the same light-duty mortise-lock compatibility as the rest of the line, the difference is purely the plate dimensions at the frame.

This size shows up most on retrofit jobs where a strike from a different manufacturer left a longer cutout than Trine's own standard prep, or on an older building where the frame was punched to a spec that predates the current ANSI standard. Rather than filling and re-cutting the frame to fit a shorter plate, ordering the 004C to match what's already there is almost always the faster and cheaper fix.

Widest faceplate: 1002 series

The Trine 1002-2A carries the widest plate in this comparison at 7-15/16" x 1-7/16", finished in aluminum powder coat rather than brass. This is the size for a strike box or cutout that's already oversized, a common situation on a retrofit where a previous strike left a larger opening than a standard ANSI prep, or where the frame manufacturer cut wide to begin with. Ordering the narrow 012 into a cutout this size leaves a visible gap around the plate; ordering the 1002 into a standard ANSI prep won't fit without re-cutting the frame. Measure the existing hole, not the door swing, before choosing between these three.

What doesn't change between them

All three run fail-secure operation, meaning the strike stays locked on power loss and only releases when energized, the standard default for a buzz-in entry or an access-controlled interior door where you want the door to stay secured if the wiring dies. All three are built for the same class of opening: light commercial, moderate traffic, standard mortise locksets with a latch throw the keeper is sized to accept. None of these are rated for the cycling volume or the abuse Trine's heavy-duty EN series is built for, if the opening is a main entrance with hundreds of cycles a day, size up to that line instead.

Voltage compatibility also stays a separate question from faceplate size. Each of these three ships in more than one voltage configuration, so matching the plate footprint to the cutout is only half the order, confirm the transformer or panel output voltage against the strike's rated range before wiring it in. A strike sized right at the frame but wired to the wrong voltage range either won't release reliably or will run hot over time.

A word on Trine's own spec sheets

Some of Trine's listing copy repeats the same generic paragraph across different faceplate sizes in this line, describing more than one part number as a "narrow" or "compact" plate regardless of its actual printed dimensions. Trust the dimensions printed in the part number and title over the marketing paragraph underneath it, and when the two disagree, measure the physical part or call before you order. The safest check on any of these three is still a tape measure on the existing strike box.

All three are in stock and ship from the Trine hub. If the door is a buzz-in intercom entry rather than a light-duty interior door, the Trine intercom entry piece covers picking AC vs DC for that application, and if the voltage on the existing wiring is the real unknown, Trine 2012 vs 2012C walks through reading a transformer before you buy.

Common questions

Can I swap a 012 for a 1002 in the same cutout?

No, not without re-cutting the frame. The 1002's 7-15/16" x 1-7/16" faceplate is significantly larger than the 012's 4-7/8" x 1-1/4" plate and won't cover a standard ANSI prep cleanly, and the 012 won't cover a cutout sized for the 1002 either.

Which one fits a standard hollow metal door frame?

The 012, at 4-7/8" x 1-1/4", is the standard ANSI strike prep size most commercial hollow metal frames are already cut for.

Are these strikes fail-secure or fail-safe?

Fail-secure across all three in this line. The strike stays locked if power is lost and only releases when the circuit is energized.

Do these work with a heavy-traffic main entrance?

Not recommended. This is Trine's light commercial 00-series, built for moderate-traffic interior doors. A main entrance with high cycling volume should spec Trine's heavy-duty EN series instead.

How do I know which faceplate size the existing prep needs?

Measure the strike box cutout in the frame directly, don't rely on the door swing or the lockset alone. If the opening was previously cut for one of these three sizes, matching that footprint is the safest bet.