SDC 25 Series Value Electric S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$151.00
$97.85
SDC SDC 25 Series - Value 1/2” Latchbolt Electric Strikes SDC-25

SDC 25 Series Value Electric Strike with 1/2" Latchbolt Compatibility

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Model: 25-4U

In Stock (leaves warehouse same day if ordered before 3pm ET)

$151.00
$97.85
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SDC 25 Series Value Electric Strike with 1/2"; Latchbolt Compatibility

Compact Centerline Latch Entry Strike for Commercial Applications

The SDC 25 Series electric strike delivers reliable access control for cylindrical locksets in metal frame installations. This centerline latch entry strike accommodates 1/2"; throw latchbolts or up to 9/16"; throw latchbolts with 1/8"; door gap, featuring 12/24 VDC dual voltage operation and 1500 holding force capacity. The compact low profile design with internally mounted solenoid enables installation in limited jamb space applications while providing 250,000 endurance cycles for high-traffic commercial use.

Professional Features & Benefits

  • Latchbolt Compatibility: Accepts 1/2"; throw latchbolts or up to 9/16"; throw latchbolts with 1/8"; door gap for versatile lockset integration.
  • Heavy-Duty Performance: Rated for 250,000 endurance cycles with 1500 holding force and 70 ft-lbs dynamic strength for demanding commercial applications.
  • Dual Voltage Operation: Field selectable 12/24 VDC operation with voltage and current spike protection for flexible system integration.
  • Compact Installation Design: Low profile construction with internally mounted solenoid and factory supplied mounting tabs enables quick installation in limited jamb space.
  • Durable Construction: Stainless steel components with die cast housing body and corrosion resistant finish for long-term reliability.
  • Professional Grade Certifications: UL 1034 Burglary-Resistant Electric Locking Mechanisms and ANSI/BHMA A156.31 certified for commercial security applications.
  • Advanced Features: Field selectable operation, latch status monitoring, screw terminals, and non-handed design for installation flexibility.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Dynamic Strength: 70 ft-lbs
  • Electronic: Yes
  • Endurance Cycles: 250,000
  • Face Plate: 4-7/8";
  • Holding Force: 1500
  • Latch Throw: 1/2";
  • Product Category: Electronic Access Controls
  • Product Group: Electronic Access Controls
  • Product Model: 25
  • Product Subgroup: Electric Strikes
  • Product Type: Electric Strikes
  • Product Voltage: 12/24 VDC
  • Series: 25 Series
  • Subcategory: Electric Strikes

Professional Applications

  • Commercial Building Security Systems
  • Educational Institution Access Control
  • Healthcare Facility Entry Management
  • Retail Security Applications
  • Industrial Facility Access Points
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose SDC Quality?

SDC 25 Series electric strikes deliver professional-grade reliability with stainless steel components and die cast housing construction rated for 250,000 endurance cycles. UL 1034 and ANSI/BHMA A156.31 certifications ensure compliance with commercial security standards. Engineered for demanding commercial applications where dependable access control performance is essential.

Manufacturer Resources

SDC Full Catalog

Product Specs

Series:
25 Series
Dynamic Strength:
70 ft-lbs
Endurance Cycles:
250,000
Product Group:
Electronic Access Controls
Product Subgroup:
Electric Strikes
Product Type:
Electric Strikes
Subcategory:
Electric Strikes
Latch Throw:
1/2"
Commercial/Residential:
Commercial
Electronic:
Yes
Holding Force:
1,500 lbs
Product Model:
25
Product Voltage:
12/24VDC
Face Plate:
4-7/8"
Product Category:
Electronic Access Controls
Department:
Door Hardware

SDC 25-4U – Frequently Asked Questions

1) Will the SDC 25 Series electric strike work with a standard cylindrical lockset with a 1/2 inch latchbolt?
That is exactly what the 25 Series is built around. It is a centerline latch entry strike for cylindrical locksets, and it accepts a 1/2 inch throw latchbolt, or up to a 9/16 inch throw where the door gap is 1/8 inch. If the lockset on the opening throws 5/8 inch or more, this is the wrong strike body and you want one rated for the longer projection, like the Adams Rite 7240 for cylindrical locks with 5/8 inch latchbolt projection.
2) What size cutout does the SDC 25 electric strike faceplate need in the frame?
The faceplate measures 4-7/8 inches, the common ANSI-length strike face on hollow metal frames, so it drops into an opening already prepped for a 4-7/8 inch strike. The body itself is low profile with the solenoid mounted internally, which is what lets it go into jambs that will not take a deeper strike box. Mounting tabs come from the factory with the strike.
3) Can the SDC 25 strike be installed in a wood or aluminum jamb?
No. The 25 Series is specified for metal frame installations. For an aluminum jamb, the Adams Rite 7100 and 7160 Series strikes are built for that frame type; for hollow metal or wood, the Adams Rite 7170 covers it.
4) Do I need to order a left hand or right hand version of the SDC 25 electric strike?
Neither. The 25 Series is non-handed, so one part covers both swings and you can stock a single strike across a building instead of splitting inventory by handing.
5) Is the SDC 25 electric strike strong enough for a high traffic entrance?
It is rated at 1,500 lbs holding force, 70 ft-lbs dynamic strength, and 250,000 endurance cycles, built with stainless steel components in a die cast housing. That cycle count covers a door worked hard every day. If your spec sheet calls out ANSI Grade 1 by name, the Von Duprin 4211 for cylindrical locks and the Alarm Controls AES-100 are both listed as Grade 1 heavy duty.
6) Is the SDC 25 Series electric strike UL listed and ANSI certified?
Certified to UL 1034 for Burglary-Resistant Electric Locking Mechanisms and to ANSI/BHMA A156.31. That is a burglary-resistance listing, not a fire door listing. On a labeled fire door opening, use a strike carried as fire rated instead, such as the Hager 2930 for cylindrical and mortise locks or the Camden CX-ED1410/CX-ED1420 universal fire rated strikes.
7) Can I use the SDC 25 electric strike with a mortise lock or an exit device?
No. It is a centerline latch entry strike for cylindrical locksets. For a mortise lock, look at the Securitron MUNL Mortise UnLatch or the Von Duprin 6210. For a rim exit device, the Hager 2945 is a rim exit strike, and for surface vertical rods the HES Folger Adam 310-4-2 pac covers it.
8) My door gap is wider than usual. Will the SDC 25 strike still catch the latch?
Gap and throw work against each other here. The 25 Series takes a 1/2 inch throw latchbolt, and it will take up to 9/16 inch of throw only when the door gap is 1/8 inch. A wider gap eats usable throw, so on a sprung or worn opening measure the gap first. If the geometry is marginal, a strike body that handles longer throws is the safer call, such as the HES Folger Adam 310-1(X) for 1/2, 5/8 or 3/4 inch throw latchbolts.
9) What is a Grade 1 heavy duty alternative to the SDC 25 Series electric strike?
The Alarm Controls AES-100 is a Grade 1 heavy duty electric strike. The SDC 25 Series is a commercial-rated strike carrying 1,500 lbs holding force and 250,000 endurance cycles, while the AES-100 is catalogued with a Grade 1 rating and heavy duty designation. On openings where a specifier calls out Grade 1 explicitly on the drawing, the AES-100 answers that line item directly.
10) What electric strike should I use on a fire rated door instead of the SDC 25?
The Hager 2930 is a fire rated Grade 1 electric strike for cylindrical and mortise locks with 12/24VDC dual voltage, and the Von Duprin 4211 32D is a fire rated Grade 1 strike for cylindrical locks with 12/24 VDC field-selectable voltage. Both match the SDC 25 Series on 12/24 VDC operation and both are the route for a fire rated opening. The Von Duprin 4211 is also catalogued heavy duty.
11) Can I use an SDC 25 Series electric strike in an aluminum storefront jamb?
The SDC 25 Series is designed for cylindrical locksets in metal frame installations. Aluminum storefront jambs are the application for the Adams Rite 7100 Series, which uses a flat faceplate measuring 1-1/4 inch by 4-7/8 inch, and the Adams Rite 7160, which uses the same 1-1/4 inch by 4-7/8 inch faceplate. Both are built specifically for aluminum jambs.
12) What is the difference between the SDC 25 Series strike and a mortise lock strike like the Von Duprin 6210?
The SDC 25 Series is a centerline latch entry strike for cylindrical locksets with a 1/2 inch latch throw. The Von Duprin 6210 is an electric strike for mortise locks, 24 VDC fail-secure, UL 10C fire rated and Grade 1. The Securitron MUNL is a mortise UnLatch strike, Grade 1 and fire rated. If the door carries a mortise lock rather than a cylindrical lockset, the 25 Series keeper is not the right cavity.
13) The SDC 25 runs on 12/24 VDC. What strike do I use on an AC transformer circuit?
The SDC 25 Series is field selectable 12/24 VDC. If the power supply on the job is AC, the Trine strike listed as TRI004 runs 8-16VAC fail secure with a 6-1/4 inch by 1-3/8 inch faceplate and up to 5/8 inch throw, and the Trine 4300CC listed as TRI2001-16-24 runs 16-24VAC/DC fail secure with a 5-7/8 inch by 1-1/4 inch faceplate and up to 5/8 inch throw. Both are fire rated.
14) I need a fail safe strike that unlocks on power loss. Does the SDC 25 do that?
The SDC 25 Series is a field selectable strike with latch status monitoring and screw terminals. For openings where the fail safe versus fail secure decision needs to be made or reversed in the field, the Hager 2925 and the Hager 2928 are both field reversible fail safe/secure, and the Hager 2945 is a fire rated rim exit strike with field selectable fail safe/fail secure plus a latchbolt monitor.
15) Will the SDC 25 Series work on a pair of doors with surface vertical rod exit devices?
The SDC 25 Series is a centerline latch entry strike sized for cylindrical lockset latchbolts. A surface vertical rod pair is a different keeper: the HES Folger Adam 310-4-2 is a complete electric strike pac for surface vertical rods, and the Rockwood double door strike with a 3/4 keeper is built for a pair. Both are Grade 1.
16) What is the difference between the two SDC 25 Series ordering options?
One choice: the RMB buzzer option, ordered either included or not included. Take the buzzer where staff at the door need an audible cue that the strike has been released, typical on a back-of-house or delivery entrance. Everything else about the strike is the same either way.
17) Can I tell whether the door actually latched with the SDC 25 strike?
Yes, the 25 Series carries latch status monitoring, so the access control system can see whether the latch is seated rather than just whether the strike was energized. Useful on a monitored perimeter door that gets propped. Where you need dual monitoring on both latch and strike, the Camden CX-ED1799L-8 is a dual monitor Grade 1 strike.
18) Can I standardize on the SDC 25 electric strike across a whole apartment building or campus?
It suits that job for interior and perimeter cylindrical lock openings in metal frames: non-handed so one part covers every swing, field selectable 12/24 VDC so it matches whatever panel voltage is already on site, and 250,000 cycles behind it. The two limits to plan around are fire rated openings, which need a strike carried as fire rated, and any exterior gate, where the Camden CX-ED1959 outdoor rated gate strike is the right family.
19) I need one strike model that covers several different frame preps. What is the alternative to the SDC 25?
The SDC 25 Series is a fixed 4-7/8 inch face plate strike for cylindrical locksets. For multi-prep coverage from a single order, the Camden CX-ED1689L-4 is a fire rated universal low profile strike supplied with 4 faceplates, and the Camden CX-ED1799L-8 is a fire rated dual monitor Grade 1 strike supplied with 8 faceplates. The Von Duprin 6400 32D is a Grade 1 modular strike that covers mortise or cylindrical locks, fail-secure, in satin stainless steel.
20) Is there a lighter duty electric strike than the SDC 25 Series for a low traffic door?
The SDC 25 Series is rated for 250,000 endurance cycles with 1,500 lbs holding force and 70 ft-lbs dynamic strength for commercial traffic. For lighter openings, the Trine 001 Series is a fail-secure light commercial strike with a 5-7/8 inch by 1-1/4 inch faceplate, and the RCI 15BS is an economy strike for special offset latch entry with fail-secure operation. Both are non fire rated, so they do not serve a rated opening.
21) Which electric strike should I use on an exterior gate where the SDC 25 will not work?
The SDC 25 Series is a commercial strike for cylindrical locksets in metal frames. For an exterior gate, the Camden CX-ED1959 Series is an outdoor rated electric gate strike. The Trine strike listed as TRIEN43012DC32DRH is fire rated and rated indoor/outdoor with a cavity centerline offset of 1 inch, which is the other route when the opening is exposed but still a door.
22) Can I install an SDC 25 Series strike without cutting the frame?
The SDC 25 Series is a low profile strike with an internally mounted solenoid and factory supplied mounting tabs, sized for limited jamb space. If the frame cannot be cut at all, the Locknetics NC450 is a no cut electric strike. For a heavy duty replacement in an existing frame, the Locknetics MDS100 US32D and MS100 US32D are both catalogued heavy duty, and the Locknetics CS450-32D is the CS Series strike.
23) I am standardizing a building on one fire rated Grade 1 electric strike. What are my options next to the SDC 25?
The SDC 25 Series carries UL 1034 and ANSI/BHMA A156.31 certification for commercial security. For a fire rated Grade 1 standard across a facility, the HES 1500 Series and HES 1600 Series are both fire rated Grade 1 families, the Securitron MUNL is fire rated Grade 1, and the Camden CX-ED1410/CX-ED1420 is a universal Grade 1 ANSI fire-rated strike. The Von Duprin 6400 32D carries a 3-hour UL 10C rating in fail-secure.
24) Does the SDC 25 Series report latch position, or do I need a different strike for monitoring?
The SDC 25 Series includes latch status monitoring on the strike itself. Comparable monitored options are the Dortronics 3300 Series, which carries a latch bolt sensing switch with 12/24VDC operation, the Hager 2945 with a latchbolt monitor, and the Camden CX-ED1799L-8, which is a dual monitor Grade 1 strike.
How fast can I get the SDC 25-4U delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the SDC 25-4U come with a warranty?
Absolutely. The SDC 25-4U is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the SDC 25-4U?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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