Schlage M420,M450,M490 Installation Instructions Manual

M400 Series
Electromagnetic Locks

Installation Instructions for Single Locks
M420, M450, M490

FEATURES

Automatic Voltage Selection (AVS)

Magnet immediately detects 12VDC or 24VDC when power
is connected.

Anti-Tamper Switch (ATS)

An indication is provided should the magnet cover become
unsecured from lock.

Magnetic Bond Sensor (MBS)

Detects proper bond between magnet and armature. It can
be monitored remotely and locally with an LED.

LED

Provides local indication of MBS status.

Door Position Switch (DPS)

Indicates whether door is open or closed. this feature is used
in conjunction with the MBS.

Relock Time Delay (RTD)

Relock time can be changed. Range is 1 - 30 seconds.

UL Requirements:

• Units shall not impair operation of panic hardware mounted on door.

• Units shall not impair intended operation of an emergency exit.

• Units/Models are intended to be connected to UL Listed Equipment, not
intended for Burglar or Fire Alarm Initiating or Indicating Devices.

• Ambient Conditions - “For Indoor Use Only”

MODELS

M420 (Traffi c Control)

UL1034 and 10C/500lb and 3hr rating

M450 (High Security)

UL1034 and 10C/1000lb and 3hr rating

M490 (Max Security)

UL1034 and 10C/1500lb and 3hr rating

TRIMS

Basic

Auto Voltage Selection (AVS) for 12 or 24VDC

Plus

Basic features + Door Position Switch (DPS), Magnetic Bond
Sensor (MBS), Relocking Time Delay (RTD), LED Status
Indicator (LED) and Anti-Tamper Switch (ATS)

This device complies with part 15 of FCC rules.

Operation is subject to following two conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference received, including any
interference that may cause undesired operation. Changes or modifi cations
not expressly approved by party responsible for compliance could void
user’s authority to operate equipment.

ELECTRICAL SPECIFICATIONS

Magnet

Wiring Cover

LHR Door - Shown from Exterior

Magnet

Wiring Cover

RHR Door - Shown from Exterior

Model

M420 0.750 0.380 500

M450 0.750 0.380 1000

M490 0.650 0.350 1500

1 PREPARE FOR INSTALLATION

1a

Determine Proper Magnet Orientation

• Magnet should be placed opposite of door hinges.

Amps (12VDC)

Per Lock

Amps (24VDC)

LOCK INSTALLATION

Per Lock

Holding Force

(lbs) Per Coil

2

1b

End Block

Magnet

End Block

(with screw hole)

Magnet

Wiring Cover

End Block

(with screw hole)

LHR

RHR

Reorient Magnet (if necessary)

• Remove screws, wiring cover and end blocks.

• Rotate magnet, end blocks and wiring cover as shown, then reassemble.

1c

Place Template and Mark Holes

• Place template on top corner, opposite of hinges.

• Mark holes and prepare them per template.

3