Kaba Mas 521025/521033, CDX-10 High Security Lock, Non Drill Resistant Mounting Plate, Strike Type 9

The Kaba Mas CDX-10 is the X-10 high security electromechanical combination lock on a surface deadbolt base plate, configured for pedestrian doors. The 521025/521033 is the Strike Type 9 configuration. Specifying the correct strike type is not a minor detail on a federal specification lock installation. Strike types in the CDX-10 system define the physical geometry of the bolt-to-strike interface at the door frame, and each type is designed for a different door frame configuration, frame dimension, or door edge clearance. Type 9 is specified when the door frame preparation or door edge clearance matches the Type 9 geometry rather than the Type 1 (521030) or Type 2 (521031) configurations.

Confirm your door frame preparation against the CDX-10 dimensional specifications before ordering. If the strike type has already been called out on a federal procurement specification or hardware schedule, that document determines the correct model number to order. For all Kaba Mas electronic and high security locks, browse our keypad and prox locks catalog.

CDX-10 Lock Specifications

The X-10 mechanism is the same across all CDX-10 strike type variants. PowerStar rotational electromechanical technology generates operating power from turning the dial. No batteries, no external power connection. Backlit Limited View LCD display. Non-volatile memory. True Scramble random number view prevents observation of combination position.

Three combination modes. Single mode: 1 million combinations, one authorized user. Dual mode: 500 billion combinations, two-person integrity required - neither combination holder opens the lock alone. Supervisor/Subordinate mode: 2 million combinations, supervisor code operates independently while subordinate code remains active.

Wrong-try penalty: 10 to 14 errors triggers a 3-minute timeout. 15 or more errors triggers a 4-minute timeout. Error count and penalty timer reset only after a valid combination. Audit trail records all openings in non-resettable memory, with unsuccessful attempts logged after three incorrect combination entries.

Performance to Federal Specification

The CDX-10 521025/521033 is built and tested to Federal Specification FF-L-2740B. Manipulation resistance: 20 man-hours. Case and bolt strength: 600 pounds in two directions. Temperature range: tested at -10°F to 155°F. Salt spray: 72 hours continuous exposure per UL 768. Humidity: 10 days at 140°F at 98% relative humidity. Stress: 7 days at 194°F. Electrical discharge: 250KV on the dial. Electromagnetic pulse: meets FF-L-2740B specification for simulation of a high-altitude nuclear blast. Vibration: MIL-STD-810. Shock: MIL-STD-901.

Kaba Mas CDX-10 521025/521033 Specifications

• SKU: 521025/521033

• Also known as: CDX-10, CDX 10, CDX-10 lock, Kaba Mas 521033, 521025521033, Kaba Mas X-10, kaba mas cdx-10 strike type 9

• Federal Specifications: FF-L-2740B (X-10 lock); FF-L-2890A (CDX-10 assembly)

• Application: Pedestrian door deadbolt; surface-mounted inside door face

• Mounting plate: Non-Drill Resistant

• Strike: Type 9 (model 521033)

• Power: PowerStar self-powered; rotational electromechanical generation; no batteries

• Combinations: Single: 1 million; Dual: 500 billion; Supervisor/Subordinate: 2 million

• Direct Dial: Yes; no clearance required before entering combination

• Display: Backlit LCD, Limited View

• Memory: Non-volatile

• Audit: Non-resettable openings log; unsuccessful attempts logged after 3 errors

• Wrong-try penalty: 10-14 errors = 3 min timeout; 15+ errors = 4 min timeout

• Manipulation resistance: 20 man-hours per FF-L-2740B

• Bolt strength: 600 lbs in two directions

• Temperature: Tested -10°F to 155°F

• Salt spray: 72 hours per UL 768

• Humidity: 10 days at 140°F at 98% RH

• EMP: Meets FF-L-2740B nuclear blast simulation specification

• Vibration: MIL-STD-810

• Shock: MIL-STD-901

CDX-10 Strike Type Comparison: Type 1, Type 2, Type 9

Three CDX-10 configurations are available on americanlocksets.com.

521025/521030 is Strike Type 1. The standard Type 1 strike geometry is the most commonly specified CDX-10 configuration for standard door frame preparations.

521025/521031 is Strike Type 2. A different strike geometry for door frames where Type 1 clearance doesn't match the installation requirement.

521025/521033 (this product) is Strike Type 9. Specified when the door frame configuration requires the Type 9 strike geometry. Confirm against the CDX-10 installation specification sheet before ordering.

All three carry the same X-10 lock mechanism, the same federal certifications, and the same performance specifications. The strike type is the only variable between them.