25
ED250
08-2018
DL4614-070
dormakaba ED250 IG Installation Instructions
Chapter 11
11 System accessories
Fig. 11.1.1 Electrical connections, single door
11.2.1 Overview
ED250 operators are normally used with
system accessories available from
dormakaba USA, Inc. or other
manufacturers.
11.2.2 Accessory electrical installation
Electrical interfaces from system
accessories used with ED250 in ground
operator must be planned for. This includes
routing of wiring from accessories to
in-ground cement case.
11.2.3 System accessories, other
manufacturers
dormakabakaba USA, Inc. cannot
guarantee compatibility for other
manufacturer's accessories. If any of these
accessories are used despite this caution,
the operator's full range of functions may
be unavailable or the devices may not work
properly.
WARNING
Damage to ED250 operator or to
connected device is also possible!
11.2.4 Power for accessories
24 Vdc, 1.5 A (36 watts) is available from
the operator for external devices and
accessories. This supply has overcurrent
protection. If additional power is required
an external power supply must be used.
11.2.5 Miscellaneous accessories
1. Door status display, red, green.
11.2 System accessories
1
External program
switch, mechanical
2
External program
switch, electronic
3
Key switch
4
Pushbutton, night /
bank
5
Pushbutton, interior
6
Pushbutton, exterior
7
Door locking device
8
Manual release switch
9
ED250 in-ground
cement case
11.2.6 Activators
Typical activators:
1. Pushbuttons, key switches
2. Radio systems
3. Smoke detectors
4. Access control systems
5. Telephone systems
6. Intercoms
TIPS AND RECOMMENDATIONS
Refer to Paragraph 7, Technical
data for electrical interface
requirements.
11.2.7 Locking devices
Typical locking devices:
1. Electric strike plates
2. Electromagnetic locks
3. Electric locks
To insure that operator and locking device
work safely when connected together,
locking device must comply with following:
1. Operating voltage, power supply from
operator, 24 Vdc, ±5 %.
2. Operating voltage, external power
supply, 48 V DC/AC maximum.
3. Locking device relay contact, maximum
load, 1 A.
4. Electric strike plate duty factor, 30%
minimum.
5. Motor lock duty factor, 100%.
8
x 18
A
W
G
2
x 1
8
A
W
G
2
x 1
8
A
W
G
2
x 1
8
A
W
G
4
x 1
8
A
W
G
2
x 1
8
A
W
G
2 x 18 AWG
3 x 12 AWG
115 VAC power
4
7
8
9
5
6
2
1
3
2 x 18 AWG
11.1 System accessory electrical connections, in-ground cement case
