Product images are provided for reference and may not represent the exact model, configuration, or included components.

No Bots, Just Experts

Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.

Description

STI STI-7521-OW Type 4X Protective Cabinet with Thumb Lock

Overview

The STI STI-7521-OW is a Type 4X protective cabinet engineered to shield access control hardware from environmental exposure and physical tampering. The unit features a thumb lock strike mechanism and integrated backplate for secure wall mounting. White finish suits indoor installations in commercial, institutional, and industrial environments where equipment protection and clean aesthetics are required.

Compatibility

This cabinet is designed to house and protect access control readers, keypads, and credential processors. The backplate provides a standardized mounting interface for common reader form factors. The thumb lock mechanism offers straightforward manual control suitable for facilities requiring accessible yet protected equipment access. Compatible with standard electrical rough-in installations.

Specifications
Product Type: Lock/Strike
Strike Type: Thumb Lock
Type: Lock/Strike
Mount Type: Wall Mount
Environment Rating: Indoor
Warranty: Manufacturer Warranty
Package Contents: D) ACCESS HOLE SUB-6297B20 3/4” NPT
Q&A
Reviews

STI STI-7521-OW Cabinet - White

$224.17
$223.99

RELATED PRODUCTS

Save $0.12
STI Type 4X Protective Cabinet with Backplate and Thumb Lock - Clear (view 4)
Add to Cart The item has been added

STI STI-7521

STI 7521 Protective Cabinet - Clear

Type 4X cabinet with clear housing and thumb lock for indoor/outdoor

  • Clear polycarbonate lets you see contents while Type 4X rating protects
  • Thumb lock mechanism controls access to mounted equipment and components
  • Backplate wall mounting suits both indoor and outdoor installation sites
Usually Ships in 2-3 Weeks Free shipping over $499
$173.11 $172.99 Save $0.12
The item has been added Add to quote
$173.11 $172.99 Save $0.12
Save $0.12 Add to cart Add to quote
Save $118.51
STI STI-7521-HTR Heated Type 4X Polycarbonate Thumb Lock Enclosure (view 2)
Add to Cart The item has been added

STI STI-7521-HTR

STI STI-7521-HTR Heated Enclosure

NEMA 4X heated polycarbonate enclosure with thumb lock for frozen climates

  • Integrated thermostat-controlled heating prevents condensation and ice formation
  • NEMA 4 rating with IP59 sealing stops water, dust, and weather ingress
  • Thumb lock strike provides mechanical backup on outdoor access control doors
Usually Ships in 2-3 Weeks Free shipping over $499
$305.50 $186.99 Save $118.51
The item has been added Add to quote
$305.50 $186.99 Save $118.51
Save $118.51 Add to cart Add to quote
Save $0.18
STI Type 4X Protective Cabinet with Backplate and - STI-7520-OW
Add to Cart The item has been added

STI STI-7520-OW

STI Type 4X Protective Cabinet with Backplate and - STI-7520-OW

Polycarbonate protective cabinet designed to shield access control readers, keypads, and credential devices in environments where vandalism

  • Type 4X polycarbonate housing rated for −40°C to 121°C suits outdoor deployments.
  • Key lock access restricts cabinet opening to authorized service personnel only.
  • Included backplate and tamper-proof fasteners enable quick mounting on any flat wall.
Usually Ships in 2-3 Weeks Free shipping over $499
$224.17 $223.99 Save $0.18
The item has been added Add to quote
$224.17 $223.99 Save $0.18
Save $0.18 Add to cart Add to quote
Save $0.50
STI STI-7510F-OW Polycarbonate Enclosure White Back Box Strike
Add to Cart The item has been added

STI STI-7510F-OW

STI Polycarbonate Enclosure with Enclosed White - STI-7510F-OW

Lockable polycarbonate enclosure designed to house and protect access control strike mechanisms and similar hardware from physical damage, vandalism

  • Polycarbonate shell with UL 94V-2 flammability rating protects strike hardware indoors.
  • Rated –40°F to 250°F, covering full range of heated and cooled commercial environments.
  • White back box provides finished mounting surface compatible with STI-7510/7511 accessories.
Usually Ships in 2-3 Weeks Free shipping over $499
$140.49 $139.99 Save $0.50
The item has been added Add to quote
$140.49 $139.99 Save $0.50
Save $0.50 Add to cart Add to quote
Save $0.50
STI STI-7511F-OW Polycarbonate Enclosure Strike Lock White Back Box
Add to Cart The item has been added

STI STI-7511F-OW

STI Polycarbonate Enclosure with Enclosed White - STI-7511F-OW

Lockable polycarbonate enclosure with integrated strike mechanism and enclosed white back box, designed to protect access control hardware—keypads

  • 94V-2 polycarbonate handles −40°F to 250°F, preventing embrittlement in harsh deployments.
  • Thumb-lock access eliminates key dependency, streamlining field maintenance and reader swaps.
  • Reader-agnostic back box mounts card, keypad, or biometric hardware without protocol lock-in.
Usually Ships in 2-3 Weeks Free shipping over $499
$140.49 $139.99 Save $0.50
The item has been added Add to quote
$140.49 $139.99 Save $0.50
Save $0.50 Add to cart Add to quote

System Design, Deployment & Technical Support

Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.

Fixed scope • Fixed price

System Design Assistance

  • Get help validating product compatibility
  • Coverage requirements
  • Storage planning and deployment architecture before you buy.
Request Design Help

Deployment & Configuration Support

  • Access fixed-scope support for rollout planning
  • User setup guidance
  • Migration and system standardization across single-site or multi-site deployments
View Support Services

Guides, Tools & Calculators

  • PoE requirements
  • Storage retention
  • Camera selection and deployment methodology
Open Technical Resources