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Dorma ED50/100/250 Installation Templates & Axle Dimensions

Mar 11, 2026

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7. Installation Templates

Model: dormakaba ED50/100/250 surface applied operator with fine cover.

Document ID: 4DL4616-004 | 01-2025

Note: When CPD lever is used, about 1 3/16” [30mm] must be deducted from the actual reveal depth when the parameter is set.

7.1.1 Assembly on hinge side, pull version with slide channel CPD and 1/2" [25mm] pivot pin

Fig. 7.1.1 Data Table: Axle Extension Dimensions
Axle extension compatibility and dimensions (Inches/mm) for ED50/ED100 and ED250
Extension Compatibility Dim A Dim B Dim C Dim D
ED50/100 ED250 Inches mm Inches mm Inches mm Inches mm
Standard ● ● 1 7/32 31 2 7/16 62 7/8 22 2 3/32 53
3/4" [20] ● ● 2 51 3 7/32 82 1 21/32 42 2 7/8 73
1 3/16" [30] ● ● 2 13/32 61 3 5/8 92 2 1/16 52 3 1/4 83
2 3/8" [60] ● ● 3 9/16 91 4 13/16 122 3 7/32 82 4 7/16 113
3 9/16" [90] - ● 4 3/4 121 6 152 4 13/32 112 5 5/8 143

Reveal and Mounting Dimensions

  • Reveal depth maximum: 2 3/8” [60]
  • Mounting Height: 5 7/8” [150]
  • Clearance: 4 3/16” [106]
  • Header Height: 1 3/4” [45]
  • Pivot Offset: 1 1/4” [32]
  • Arm Length: 17 3/4” [451]

7.1.2 Assembly on hinge side, pull version with slide channel CPD and 1" [50] pivot pin

Fig. 7.1.2 Data Table: Axle Extension Dimensions
Extension Compatibility Dim A Dim B Dim C Dim D
ED50/100 ED250 Inches mm Inches mm Inches mm Inches mm
Standard ● ● 1 7/32 31 2 15/16 75 7/8 22 2 19/32 66
3/4" [20] ● ● 2 51 3 3/4 95 1 21/32 42 3 3/8 86
1 3/16" [30] ● ● 2 13/32 61 4 1/8 105 2 1/16 52 3 25/32 96
2 3/8" [60] ● ● 3 9/16 91 5 5/16 135 3 7/32 82 4 31/32 126
3 9/16" [90] - ● 4 3/4 121 6 1/2 165 4 13/32 112 6 1/8 156

Reveal and Mounting Dimensions

  • Reveal depth maximum: 2 3/8” [60]
  • Mounting Height: 5 7/8” [150]
  • Clearance: 4 3/16” [106]
  • Arm Length: 17 3/4” [451]

7.1.3 Assembly on opposite hinge side, push version with slide channel and 1/2" [25 mm] pivot pin

NOTICE 1 inch pivot pin installation:
- Add 1/2" to the B and D dimensions.
- Add 1/2" to the 1 3/8" [35 mm] dimension.
Fig. 7.1.3 Data Table: Axle Extension Dimensions
Extension Compatibility Dim A Dim B Dim C Dim D
ED50/100 ED250 Inches mm Inches mm Inches mm Inches mm
Standard ● ● 9/16 14 1 15/16 49 3/16 5 1 9/16 40
3/4" [20] ● ● 1 11/32 34 2 23/32 69 1 25 2 3/8 60
1 3/16" [30] ● ● 1 3/4 44 3 1/8 79 1 3/8 35 2 3/4 70
2 3/8" [60] ● ● 2 29/32 74 4 5/16 109 2 9/16 65 3 15/16 100
3 9/16" [90] - ● 4 3/32 104 5 15/32 139 3 3/4 95 5 1/8 130

Reveal and Mounting Dimensions

  • Reveal depth maximum: 2 3/8” [60]
  • Maximum opening width: 95°
  • Mounting Height: 5 7/8” [150]
  • Arm Length: 17 3/4” [451]

7.1.4 Assembly on opposite hinge side, push arm version

Fig. 7.1.4 Data Table: Axle Extension Dimensions
Extension Compatibility Dim A Dim B Dim C Dim D
ED50/100 ED250 Inches mm Inches mm Inches mm Inches mm
Standard ● ● 11/16 18 2 51 11/32 9 1 21/32 42
3/4" [20] ● ● 1 1/2 38 2 13/16 71 1 1/8 29 2 7/16 62
1 3/16" [30] ● ● 1 7/8 48 3 3/16 81 1 13/32 39 2 13/16 72
2 3/8" [60] ● ● 3 1/16 78 4 3/8 111 2 23/32 69 4 102
3 9/16" [90] - ● 4 1/4 108 5 9/16 141 3 29/32 99 5 3/16 132

Push Arm Dimensions

  • Standard push arm: 0 – 11 13/16” [0 – 300mm]
  • Deep push arm: 0 – 19 5/8” [0 – 500mm]
  • Mounting Height: 5 7/8” [150]
  • Push Arm Length: 9 5/8” [245]

7.1.5 Assembly on hinge side, pull version with slide channel and short pivot pin

Fig. 7.1.5 Data Table: Axle Extension Dimensions
Extension Compatibility Dim A Dim B Dim C Dim D
ED100 ED250 Inches mm Inches mm Inches mm Inches mm
Standard ● ● 1 7/32 31 1 31/32 50 7/8 22 1 5/8 41
3/4" [20] ● ● 2 51 2 3/4 70 1 21/32 42 2 13/32 61
1 3/16" [30] ● ● 2 13/32 61 3 1/8 80 2 1/16 52 2 13/16 71
2 3/8" [60] ● ● 3 9/16 91 4 5/16 110 3 7/32 82 3 31/32 101
3 9/16" [90] - ● 4 3/4 121 5 1/2 140 4 13/32 112 5 5/32 131

Reveal and Mounting Dimensions

  • Reveal depth maximum: ± 1 3/16” [30]
  • Mounting Height: 6 1/8” [155]
  • Arm Length: 17 3/4” [451]

7.1.6 Assembly on hinge side, pull version with slide channel and long pivot pin

Fig. 7.1.6 Data Table: Axle Extension Dimensions
Extension Compatibility Dim A Dim B Dim C Dim D
ED100 ED250 Inches mm Inches mm Inches mm Inches mm
Standard ● ● 1 7/32 31 2 1/2 63 7/8 22 2 1/8 54
3/4" [20] ● ● 2 51 3 1/4 83 1 21/32 42 2 29/32 74
1 3/16" [30] ● ● 2 13/32 61 3 21/32 93 2 1/16 52 3 5/16 84
2 3/8" [60] ● ● 3 9/16 91 4 27/32 123 3 7/32 82 4 1/2 114
3 9/16" [90] - ● 4 3/4 121 6 1/32 153 4 13/32 112 5 21/32 144

Reveal and Mounting Dimensions

  • Reveal depth maximum: ± 1 3/16” [30]
  • Mounting Height: 5 7/8” [150]
Tags: Axle Extension Dimensions, Dorma ED100, Dorma ED250, Dorma ED50, Installation Templates, Pivot Pin Specs, Pull Side Mounting, Push Side Mounting, Slide Channel CPD, Surface Applied Operator
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dormakaba ED50/100/250 Installation: Tools & Torque Chart
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Dormakaba ED50/ED100/ED250 Operator Installation Guide: Chapter 8

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