SR Left Hand Hand Door Interlock Device - Use With A Retiring Cam
SR Left Hand Hand Door Interlock Device - Use With A Retiring Cam
Used on single swing doors the SR Door Interlock has two sets of contacts. One for door close and one for door locked. A retiring cam is required to make this unit function properly.
This unit mounts on the left hand side of the door jamb when standing inside the elevator looking out into the hallway.
Estimated Lead Time: 4-5 Weeks - Depending On Quantity Required
Models Available / Specifications
ITEM: 78102-LH
250V AC, 2 Amps | Min. Travel: 7/8” | Force: 1.8 lbs. | Heavy Duty Cast Iron Enclosure, Latch and Roller Arm, Self Wiping Metal Loaded Contacts
Model Not Available
Please note that the design and construction of this interlock will not prevent water or dust from entering the enclosure. For wet, dusty environments like this we recommend using the hazardous location model as well as increasing your maintenance.
ITEM: 78102HS-LH
Hazardous Location Model - Class 1, Division 2 - Groups, A,B,C,D - Hermetically Sealed Contact Block Rated UL, CSA. Switch built to NEC Code requirements for Class 1, Division 2, Groups A,B,C & D Locations - (360VAC Inductive)
Items You May Need To Complete Your Installation
Device Description
The SR Interlock has two contacts, wired in series together as part of the safety circuit. The upper is the door contact, the lower is the locking contact which is both electrical and mechanical. The interlock mounts on the door jamb or frame inside the hoist way. The locking latch mounts to the inside door edge. When the door is closed the upper (door) contact is made. When the retiring cam is retracted the bottom contact is made and the solid brass hook catches behind the locking bar, mechanically locking the door.
When the car stops at a floor the retiring cam pushes the release roller, mechanically unlocking the door and opening the bottom electrical contact. When the door is opened the top contact drops by gravity.
Although this is designed for use with a Retiring Cam it can be used with a Stationary Cam.
*This devices is made for either Right-hand or Left-hand mounting. The hand is determined by standing inside the elevator looking out. The side on which the lock is to be mounted (Left or Right) is the hand to be ordered.
Features:
• Solid Cast Parts
• Heavy Duty Contacts
• 250 Volts AC or DC
• Self Wiping Contacts
• Adjustable Roller Arm
*This door locking device is built in both a Right-Hand or Left-Hand model. The hand is determined by standing inside the elevator looking out. The side the lock is to be mounted (Left or Right) is the hand to be ordered.
Description
These Door Locks are mounted to the door frame or wall inside the hoist-way through mounting holes in the casting that bolt to a wall/door frame. The housing includes the contact making assembly, shafts and cam. At the top of the housing is a roller arm shaft with an adjustable roller arm. A conduit connection hole in the bottom of the housing is for wiring to the contact terminals.
Operation
When the elevator stops at the landing, the retiring cam on the elevator receives a signal from the controller that the elevator is level at the floor. The retiring cam extends pressing up against the roller arm which rotates the door locking latch upwards allowing the door to manually slide open. When the door latch keeper exits the interlock the door closed contact opens and two contacts are open in the safety circuit. When the door is closed the door latch enters into the door locking device and closes the contacts signaling to the elevator controller that the doors are closed and the retiring cam can move away from the roller arm which once complete the door locked contact closes and the elevator can run.
Installation/Maintenance Guide
Click here To Download SR Install .pdf Guide
Please email sales@cjanderson.com for assistance with any questions you might have.