BS EN 1155

BS EN 1155 : 1997
Electrically powered hold open devices for swing doors

UNION products applicable: UNION Door closers N8899

GUIDE TO CLASSIFICATION

BS EN 1155 classifies electrically powered door closers under a six digit coding system.

Each digit refers to a particular feature of the product measured against the standard's performance requirements.

Digit 1 - Category of use
- grade 3: for doors for use by the public, and others, with little incentive to take care.

Digit 2 - Number of test cycles
- grade 5: 50 000 cycles. For all electrically powered hold open devices
- grade 8: 500 000 cycles. For all electrically powered hold open devices and free swing door closers and devices that contain operating arms.

Digit 3 - Hold open power size
Five hold open power sizes are identified:

Hold open power size

Recommended door leaf width
Max (mm)

Test door mass
(kg)

Overload test drop weight
(kg)

Test door friction
Max (N m)

3

950

60

15

0,3

4

1100

80

18

0,4

5

1250

100

21

0,5

6

1400

120

27

0,6

7

1600

160

36

0,8

 

Digit 4 - Suitability for use on fire/smoke compartmentation doors
Grade 1: Suitable for use on fire/smoke door assemblies, subject to satisfactory assessment of the contribution of the electrically powered hold-open device to the resistance of specified fire/smoke door assemblies.

Digit 5 - Safety
All electrically powered hold-open devices are required to satisfy the essential requirement of safety in use. Therefore only grade 1 is identified.

Digit 6 - Corrosion resistance
Grade 0: No defined corrosion resistance
Grade 1: Mild resistance
Grade 2: Moderate resistance
Grade 3: High resistance
Grade 4: Very high resistance

EXAMPLE

The following denotes an electrically powered hold-open device complying with grade 3 category of use, with durability grade 5 without operating arms, suitable for use on fire/smoke door assemblies, with safety grade 1 and with a mild resistance to corrosion.

3
5
6
4
1
1
1