ND-Series Electrified Locks

Document Number: P515-185

Brand: SCHLAGE

Wiring Instructions and Specifications

ND-Series Electrified Lock

All installations must comply with local electrical codes and the national electrical code, NFPA 70.

For standard installation, refer to the full instruction sheet.

Select the appropriate mode for installation using the mode select switch located on the chassis. Note: When the mode is switched (from EL to EU or EU to EL), the lock requires a complete lock/unlock power cycle to synchronize to the proper mode.

Modes of Operation:

EL, Electrically Locked (Fail Safe): When power is applied, the outside knob/lever, or both outside and inside knobs/levers (depending on function), will lock. In the event of power failure, the opening will be unlocked.
EU, Electrically Unlocked (Fail Secure): When power is applied, the outside knob/lever, or both outside and inside knobs/levers (depending on function), will unlock. In the event of power failure, the opening will be locked.

Electrical Requirements

The 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	12 V	24 V
14	500' (152 m)	Up to 1000' (304 m)
16	300' (91 m)	-
18	200' (61 m)	-
20	100' (30 m)	-

Note: Either lock wire may be attached to either power supply terminal (+ or -).

Diagram Description: A diagram shows a mode select switch on the lock chassis. It illustrates connections from a power supply (12 or 24 V DC) through a switch (not furnished) to the lock, and also to an electrified hinge/EPT (not furnished) via a harness.

Troubleshooting

If lock does not operate:

Ensure the lock is powered with DC power.
Ensure the input voltage is between 10.8 and 26.4 volts DC.
Do not use AC power.

Request-to-Exit (RX) Lock

The RX function utilizes a microswitch inside the lock case to detect rotation of the inside knob/lever. The switch then signals the use of the opening to the security system. Attach wires from the RX switch wire harness to an electrified hinge/EPT (not furnished). Refer to the Allegion Connect section below for wire identification. Electrical rating: 2 A, 30 V DC.

RX Switch Kit #N123-062 Installation:

Attach the switch assembly to the pin on the chassis using the provided screw. Use the RX anti-rotation plate (see inset).

Door Preparation:
Important! Drill RX hole first.
Diagram Description: A diagram details door preparation for the RX function, showing hole sizes and locations for the RX hole (e.g., 13/8" or 35mm), latch, and other necessary openings. It emphasizes drilling the RX hole first and provides measurements like 5/16" (8mm) and 25/8" (67mm). The diagram is not to scale.

Allegion Connect

Allegion Connect is a factory-installed Molex® connector system that 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)
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	-

Diagram Description: A diagram illustrates the Allegion Connect system, showing the Molex connector on the lock wiring harness connecting to an electrified hinge/EPT and the power supply. It also shows a variable length wiring harness.

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