ACCENTRA 3321T Door Closer – Holder/Stop Thumbturn | Adjustable Size 1–6

Combine commercial-grade door closing, an integrated mechanical stop, and convenient hold-open control with the ACCENTRA 3321T Holder/Stop Thumbturn Door Closer.

Part of the ACCENTRA 3300 Series, the 3321T combines an adjustable Size 1–6 Grade 1 closer with a Holder/Stop arm and thumbturn-controlled mechanical hold-open function.

The integrated stop limits door travel while the thumbturn allows the hold-open feature to be engaged or disengaged as required.

Key Features

• Genuine ACCENTRA / ASSA ABLOY

• Model 3321T

• ACCENTRA 3300 Series

• Holder/Stop Thumbturn

• Mechanical hold-open function

• Integrated mechanical door stop

• Adjustable spring power Size 1–6

• ANSI/BHMA A156.4 Grade 1

• Stop built into arm soffit plate

• Adjustable stop position

• Thumbturn-controlled hold open

• Slim-line molded plastic cover

• Non-handed closer

• Aluminum closer body

• Rack-and-pinion construction

• Adjustable backcheck

• Adjustable sweep / closing speed

• Adjustable latch speed

• Optional delayed action

• Sleeve nuts furnished standard

• Multiple architectural finishes

Holder/Stop Function

The 3321T combines two door-control functions in one arm assembly:

Mechanical Stop + Mechanical Hold Open

The stop limits the maximum opening angle while the holder mechanism allows the door to remain at the selected open position when desired.

Thumbturn Hold-Open Control

The T designation identifies the:

Thumbturn Holder/Stop Configuration

The thumbturn allows the mechanical hold-open feature to be enabled or disabled.

This provides flexibility for buildings where the door should sometimes:

• Remain open

• Automatically close

without replacing or adjusting the arm assembly.

Adjustable Stop Range

The integrated mechanical stop can be positioned approximately between:

85° and 110°

in approximately:

5° Increments

This allows the installer to select a practical maximum door-opening angle for the opening.

Backcheck Before the Stop

As the door approaches the selected stop position, the closer's adjustable backcheck slows the opening motion.

This reduces impact before the arm contacts the mechanical stop and helps protect:

• Door

• Frame

• Hinges

• Closer

• Arm assembly

Hold-Open Applications

The 3321T is ideal for applications where the door may need to remain open during approved periods, including:

• Offices

• Classrooms

• Conference rooms

• Retail areas

• Interior institutional openings

• High-traffic interior doors

Fire Door Warning

Mechanical hold-open hardware generally should not be used on fire-rated openings unless the complete system is specifically listed and approved for that application.

For a non-hold-open stop-only configuration, choose the:

ACCENTRA 3321

Adjustable Size 1–6

The 3321T uses the ACCENTRA 3300 closer platform with adjustable spring power from:

Size 1 through Size 6

Spring power can be adjusted according to:

• Door width

• Door weight

• Mounting conditions

• Interior or exterior use

• Required closing force

Adjustable Backcheck

The backcheck valve controls resistance during the opening cycle and is especially important with the Holder/Stop arm.

Proper adjustment helps slow the door before the mechanical stop is reached.

Adjustable Sweep Speed

A separate hydraulic valve controls the main closing speed.

Adjustable Latch Speed

The final portion of the closing cycle can be independently adjusted to provide reliable latching without excessive impact.

Optional Delayed Action

Available option:

DL – Delayed Action

Delayed action provides additional time before the normal closing cycle begins.

Slim-Line Cover

The 3321T includes the ACCENTRA 3300 Series:

Slim-Line Plastic Cover

for a compact architectural appearance.

Non-Handed Closer

The closer body is:

Non-Handed

for compatible left- and right-hand door installations.

Sleeve Nuts Included

ACCENTRA furnishes:

Sleeve Nuts Standard

with Holder/Stop configurations.

Common Applications

Ideal for:

• Offices

• Schools

• Healthcare facilities

• Government buildings

• Retail facilities

• Institutional buildings

• Conference rooms

• Classrooms

• Interior commercial doors

• Openings where a floor stop is impractical

• Doors requiring occasional mechanical hold open

Product Specifications

Brand: ACCENTRA
Manufacturer: ASSA ABLOY
Series: 3300
Model: 3321T
Product Type: Architectural Door Closer with Holder/Stop Arm
Function: Holder/Stop Thumbturn
Hold Open: Yes
Spring Power: Adjustable Size 1–6
Grade: ANSI/BHMA A156.4 Grade 1
Handing: Non-Handed Closer
Stop Range: Approx. 85°–110°
Stop Adjustment: Approx. 5° Increments
Hold-Open Control: Thumbturn
Mechanism: Rack and Pinion
Cover: Slim-Line Plastic
Backcheck: Adjustable
Sweep Speed: Adjustable
Latch Speed: Adjustable
Delayed Action: Optional
Sleeve Nuts: Included
Approximate Shipping Weight: 9 lbs.

What's Included

Standard package includes:

• ACCENTRA 3321T closer body

• Slim-line plastic cover

• 4020T-8 Holder/Stop Arm Assembly

• Thumbturn hold-open mechanism

• Soffit plate

• Mechanical stop assembly

• Sleeve nuts

• Mounting hardware

Not Included Unless Specifically Stated

• Separate floor stop

• Door

• Frame

• Installation labor

Important Ordering Information

Before ordering, verify:

• Model 3321T

• Hold-open function required

• Required stop position

• Door width and weight

• Door and frame construction

• Required finish

• Delayed-action requirement

• Soffit conditions

• Fire-rating restrictions

Important

3321T = Holder/Stop Thumbturn / Hold Open

For the same closer and stop-arm platform without mechanical hold open, use the ACCENTRA 3321.