Kirk Key SOLENOID AND TIME DELAY KEY RELEASE UNITS User Manual
Instruction Manual for:
Solenoid Key Release Unit and Time Delay Key Release Unit
Kirk Key Interlock Company
211Wetmore Ave. S.E., Massillon, OH 44646
Phone: 330.833.8223 • Fax: 330.833.1528
Toll Free: 1.800.438.2442
www.kirkkey.com
Table of Contents:
s
Type SKPM......................................................... Page 2
Type SKRU ........................................................ Page 3
ent
t :
Type SKRU Wiring Diagram................................. Page 4
n
o
Type TDKRU........................................................ Page 5
Type TDKRU Wiring Diagram............................... Page 6
of C
Key Control and Duplicate Keys....................... Page 7
e
l
Service and Maintenance................................ Page 8
b
Duplicate Key Release Form.............................
Ta
Page
9 -10
Installation Instructions
Proper installation of key interlocks is a critical element of a key interlock system. It is essential that
each SKPM, SKRU, or TDKRU be installed so that the key(s) cannot be released unless the
equipment to which it is installed is in the proper position/condition. After installation of the interlocks,
the complete interlock system should be tested sequentially by person(s) familiar with the entire
system and its intended purpose. Any problems or discrepancies must be corrected prior to
energization.
Each interlock is supplied with a key in each cylinder. These keys are needed during installation of
the interlocks. Once the complete interlock system is installed, all extra keys must be removed from
the system and destroyed or retained by a responsible person. There should only be enough keys to
operate the interlock system sequentially. Kirk Key Interlock Company will not be responsible for
extra keys left in the interlock system.
IB/KRU/06
PAG E 1
Instruction Manual for:
Solenoid Key Release Unit and Time Delay Key Release Unit
KIRK Solenoid Panel Mounted (
®
Type SKPM)
The SKPM consists of a keyed interlock, a solenoid, and a pair of auxiliary switches (2 N.O. and 2
N.C. contacts). The SKPM is designed to permit removal of the interlock key in response to an
electric signal. Upon energizing the solenoid, the key can be turned and released. Turning the key
operates the auxiliary switch.
FRONT VIEW
SIDE VIEW
N
N
.C
.O
.
.
SKPM Wiring Instructions
1) Mount SKPM in the panel or enclosure.
2) Connect solenoid leads to the appropriate circuit.
3) Wire the auxiliary contacts (if required).
4) Test the wiring to verify that the circuitry corresponds to the proper key position (trapped vs.
free).
NOT E: The k ey i s h eld i n t he S KP M unt il t he s o le n oi d i s e ne r gi zed . T he d ra w in g s ho ws t he pos iti on of t he c o nt acts w he n the k ey i s h eld . O nce t he
solenoid is energized and the key is rotated and released, the contacts will change state.
IB/KRU/06
PAG E 2
Instruction Manual for:
Solenoid Key Release Unit and Time Delay Key Release Unit
KIRK Solenoid Key Release Unit (Type SKRU)
®
The SKRU consists of a keyed interlock, a solenoid, and a DPDT (quick-make, quick-break) auxiliary
switch. The SKRU is designed to permit removal of a key (or keys) in response to an electric signal.
A pushbutton and/or an indicating light are available options. All electrical components are wired out
to a terminal block.
A single key SKRU is designed to have a key “trapped” in its lock until a signal is sent to the solenoid.
When the solenoid is energized the key can be rotated and released. Turning the key operates the
auxiliary switch. The released key can then be utilized in an interlock sequence. By returning and
rotating the key, it once again becomes “trapped” and the auxiliary switch goes back to its original
state.
Housed
(Back Panel Mounted)
Cover
Cover
SKRU - Unhoused
SKRU - Unhoused
with front cover only
(Front and Top view)
Housed
(Front Panel Mounted)
SKRU - Housed
The SKRU is available 1) unhoused, 2) unhoused with front cover only, or 3) housed in an aluminum
box with two conduit openings. See the examples above. Two key SKRUs are available two ways;
1) with both keys released upon energization of the solenoid or, 2) requiring an initiating key and a
signal to the solenoid to enable release of a previously held key. It is important that the installer
understand the entire interlock system and its intended purpose.
IB/KRU/06
PAG E 3
Loading...