SECO-LARM DH-100E Door Holder Extension Bar

Extension Bar For SECO-LARM Magnetic Door Holder Armature Mounting

The SECO-LARM DH-100E is a door holder extension bar designed to extend the armature mounting distance on compatible SECO-LARM magnetic door holder assemblies. Used when standard armature positioning does not provide proper alignment between the door holder and armature plate, these extension bars allow precise positioning for optimal magnetic contact and full holding force. Available in four lengths to accommodate a wide range of door frame configurations, wall depths, and mounting requirements in residential, commercial, and public area access control applications. Always confirm the required extension length by measuring the gap between your door holder and armature plate before ordering.

Key Features

• Extension bar for precise armature positioning on SECO-LARM door holders
• Available in four lengths to accommodate varying mounting configurations
• Ensures proper magnetic contact between door holder and armature plate
• Maintains full 33 lb holding force when properly installed
• Compatible with DH-151SQ and DH-171SQ magnetic door holder assemblies
• Verify required extension length prior to purchase

Models and Variants

• DH-100E-07SQ - 3/4 in (19mm) extension bar
• DH-100E-10SQ - 1 in (25mm) extension bar
• DH-100E-40SQ - 4 in (102mm) extension bar
• DH-100E-70SQ - 7 in (178mm) extension bar

Technical Specifications

• Model Family: DH-100E series
• Component Type: Armature extension bar
• Available Lengths: 3/4 in, 1 in, 4 in, 7 in
• Compatibility: SECO-LARM DH-151SQ and DH-171SQ magnetic door holders
• Manufacturer: SECO-LARM
• Condition: New, genuine OEM part

Conclusion

For magnetic door holder installations requiring additional armature offset, SECO-LARM DH-100E extension bars provide factory-spec positioning and proper alignment for consistent magnetic engagement. Measure the required gap between your door holder and armature plate before selecting the appropriate extension length to ensure correct fitment and full holding force performance.