Schlage ND53 - Electrified Locks; ND-Series EL, Electrically Locked (Fail Safe); Allegion Connect

Electrified locks
Schlage • ND-Series service manual • 105
Electrified locks
ND-Series EL, electrically locked (fail safe)
Outside knob/lever or both outside and inside knobs/levers (depending on function) will lock when power is applied. In the
event of power failure, the opening will be unlocked.
ND-Series EL, electrically unlocked (fail secure)
Outside knob/lever or both outside and inside knobs/levers (depending on function) will unlock when power is applied. In the
event of power failure, the opening will be locked.
Electrical requirements
ND-Series electrified locks are powered by DC power only. DO NOT USE AC POWER.
• Voltage: 12 or 24 V DC (maximum 26.4 V, minimum 10.8 V)
• Holding current: 10 mA
• Peak current: 230 mA
• Operating temperature: 32°F to 120°F (0°C to 49°C)
• All power requirements shown are for single lock operation.
Maximum Total Wire Length
AWG 14 16 18 20
Voltage
12 V
500’
(152 m)
300’
(91 m)
200’
(61 m)
100’
(30 m)
24 V Up to 1000’ (304 m)
Note: Either lock wire may be attached to either
power supply terminal (+ or -).
Switch (not
furnished)
Electrified hinge/EPT
(not furnished)
12 or 24 V DC
Lock to hinge or
EPT harness
(not furnished)
Power supply
12 or 24 VDC
(not furnished)
Mode
select
switch
Allegion Connect
Allegion Connect, a factory-installed Molex
®
connector system, provides simplified installation and maintenance utilizing
quick-connect harnesses and hinges. Alternatively, the Molex connector may be cut off and the lock installed with traditional
wire splicing methods.
WIRE COLOR AND FUNCTION
Pin Color Function
1 Black Power (auto detects GND, +12 or +24 V DC)
1
2
3
4
5
6
7
8
2 Red Power (auto detects GND, +12 or +24 V DC)
3 Purple RX NO (normally open)
4 Grey RX NC (normally closed)
5 White RX COM (common for RX)
6, 7, 8 Not used
Variable length
wiring harness
(6" to 192")
EPT or electrified
hinge
6” wiring
harness
To
power
supply