{"brand":"SDC","brand_id":67,"slug":"sdc","hero_image_url":"","intro_h2":"US-engineered access control hardware since 1972","intro_paragraph":"

Security Door Controls (SDC) has been building US-manufactured commercial electric locks, electric strikes, magnetic locks, and door operators in California for over five decades. The hardware sits next to HES on the integrator's BOM as a viable second source \u2014 same ANSI ratings, same UL listings, slightly different mechanical engineering choices that fit some door geometries better than the alternatives. For sites where procurement requires a credible second source, SDC keeps the leverage real.

","top_categories_html":"Access ControlElectric StrikesMagnetic LocksDoor HardwarePower","narrative_blocks_html":"
\"SDC

EH-series electric strikes

The EH-series electric strikes deliver ANSI A156.31 grade 1 mechanical lifetime in a US-manufactured product. Fail-safe and fail-secure configurations, 12VDC or 24VDC selectable, and the strike geometry that fits common commercial latch hardware including Schlage, Yale, and Sargent installed-base.

Shop SDC Strikes
\"SDC

EMLock magnetic locks

The EMLock series covers 600-lb, 1200-lb, and 1500-lb holding force magnetic locks for commercial single and double door deployments. UL 1034 listed, fail-safe operation (locked when powered, unlocked on power loss for NFPA-required emergency egress), and supervised wiring for the access control event log.

Shop Magnetic Locks
\"SDC

UR-Series access controllers

The UR-Series standalone access controllers cover single-door and multi-door deployments without requiring a network-connected access control platform. For storage facilities, contractor entries, and small-commercial sites, the standalone controller is the turnkey approach.

Shop SDC Controllers
\"SDC

LR-Series request-to-exit

LR-Series passive infrared (PIR) request-to-exit detectors handle the NFPA-required egress path. Mounted above the door, the PIR sensor releases the lock when motion is detected approaching from the secure side, supporting code-compliant emergency egress.

Shop Request-to-Exit
\"SDC

Access control power

SDC also ships access-control-specific power supplies and battery backup hardware sized for the door hardware loads. The power architecture matches the rest of the access control hardware lineup, keeping the BOM single-vendor where the customer prefers.

Shop SDC Power
","featured_products_html":"
\"SDC

SDC LR100VDK Electric Retrofit Controller for Von Duprin

$440.99
\"SDC

SDC PT-3V Stainless Steel Armored Loop Controller

$36.99
\"SDC

SDC 492 Emergency Door Release Controller

$116.99
\"SDC

SDC PT-2U 4-Door Access Control Controller

$16.99
\"SDC

SDC E1200 Magnetic Lock 1200LBS

$199.99

SDC 492-BB Surface Mount Back-Box Access Control Controller

$51.99
","trust_block":"

Selling SDC since 2014, through national US distribution. US-manufactured.

"}