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Calibre Door Closers CA3300-B Overhead Concealed (OHC) Closer Body Only, 3300 Series, Adjustable Spring Tension
Model: CDCCA3300-BO
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The Calibre Adjustable Overhead Concealed Closer delivers ADA-compliant performance and long-term durability for aluminum storefront doors in commercial and institutional applications. This closer includes an adjustable spring tension mechanism, allowing onsite customization to meet a range of force and code requirements after installation.
Designed with a 105° back stop and non hold open (NHO) function, the closer offers controlled door movement and enhanced safety. Dual-speed valves allow independent control of closing and latching speeds. Its universal non-handed design fits center or offset hung doors, and installation is compatible with headers as small as 1-3/4" x 4". The CA3010-DP dual purpose bottom pivot set is included, with optional pivots and arm styles available.
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Function: 105° Back Stop, Non Hold Open (NHO)
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Spring Tension: Adjustable (multi-size, ADA compliant)
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Closer Type: Mechanical Overhead Concealed Closer
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Mounting: Center Hung or Offset Hung
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Handing: Non-handed (LH or RH)
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Top Arms:
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Standard: ‘S’ side loading
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Optional: ‘A’, ‘K’, ‘PT’ (end loading)
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Offset Applications: ‘JO’, ‘VO’ (must be specified)
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Bottom Pivot: CA3010-DP dual purpose pivot (included)
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Optional: CA3010-G or CA3010-GE pivot sets
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Anchor Set: CA3010-FS with all mounting hardware (included)
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Closer Compatibility: Fits headers as small as 1-3/4" x 4"
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Speed Control: Dual independent valves for closing and latching adjustment
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Positive Cam Centering: Holds door secure against wind and pressure
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Hydraulic Fluid: Stable performance across varied climates
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Fire & Safety Ratings:
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UL10C Listed (positive pressure, no hold open)
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UBC 7.2 (1997)
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BS476 Fire Safety
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Extended Shaft Variant: 3300-20 Series (with 17/64" longer spindle)
Available Models
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CA3310 Series: 105° or 90° Back Stop (with/without Hold Open)
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CA3301–CA3303: 130° Back Stop with various Hold Open options
Finishes
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Standard aluminum storefront-compatible finish (custom finishes available upon request)
CA3300 Series Parts and Accessories:
| CA3300-B | Unit Body Only (Specify: Spring Tension, Type & Function) |
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| CA3010-S | "S" Type Side Loading Top Arm Assembly (1/2" Depth Top Rail) |
| CA3010-A | "A" Type End Loading Top Arm Assembly (1" Depth Top Rail) |
| CA3010-K | "K" Type End Loading Top Arm Assembly (5/8" Depth Top Rail) |
| CA3010-PT | "PT" Type End Loading Top Arm Assembly (7/8" Depth Top Rail) |
| CA3010-JO | "JO" Type Offset Top Arm Assembly (Mortised Type, Cut down into 9/16" Depth Top Rail) |
| CA3020-VO | "VO" Type Offset Top Arm Assembly (Surface Type, Requires 7/8" Depth Top Rail) |
| CA3010-FS | Anchor Set (Standard - for Snap together Header) |
| CA3010-FK | Anchor Set (Optional - for Full tube Cut Away Header) |
| CA3010-F | Corner Anchor Clip ("F" Clip Only) |
| CA3010-DP | Adjustable Dual Purpose Bottom Pivot Set (Standard) |
| CA3010-G | Adjustable Floor Mount Bottom Pivot Set (Optional) |
| CA3010-GE | Adjustable Threshold Mount Bottom Pivot Set (Optional) |
Manufacturer Resources
Product Specs
- Category:
- Door Closers
- Product Group:
- Overhead Concealed Door Closers
- Product Type:
- Mechanical Closers
- Closer Type:
- Mechanical Overhead Concealed Closer
- Mounting:
- Center Hung, Side Load
- Handing:
- Non-handed (LH or RH)
- Series:
- CA3300 Series
- Function:
- Non-Hold Open