GK Series
Dual Entry Key Operated Safety Interlock Switch
FEATURES
• Side or top key entry
• Unique friction feature for key retention
• LED Indicators for status available
• Choice of four heavy duty keys
• Standard mounting per EN 50041
• International conduit offering
• Positive opening operation of Normally
Closed contacts conforming to
IEC/EN 60947-5-1-3
• Available with 1 NC/1 NO, 2 NC, 3 NC/1 NO
and low energy contacts positive
opening contact options
• UL listed, CSA and CE compliant
BENEFITS
• Allows up to eight different key entry
positions
• Door vibration does not trip the safety
circuit
• Remote signalling can be achieved
easily at the switch
• Key mounting flexibility and security
• Simple mounting
• Machinery can use local termination
standards
• Welded contacts will separate - vital for
safety applications
• Choice of wiring capabilities (switching
inductive and safety relay loads)
The GK Series is designed specifically for use on machines where key removal brings
the machine to an immediate safe condition. It provides enhanced operator safety
when added to hinged or sliding guard doors, screens and protective covers on en-
closures. The GK Series is especially well suited for large door applications, typically
in the automotive plant floor environment. Its heavy duty construction withstands
harsh industrial environments where rugged, long-term durability is required.
A safety lockout device is also available for use with the GK Series. The lockout
device (GKZL2) is specifically designed to prevent a key from being inserted either
manually, or by the access door being closed while maintenance personnel are work-
ing on the machine. When inserted, the lockout device can accommodate up to four
padlocks to prevent unauthorised removal of the device.
!
WARNING
MISUSE OF DOCUMENTATION
• The information presented in this product sheet (or catalogue) is for reference only. DO NOT USE this document as system
installation information.
• Complete installation, operation and maintenance information is provided in the instructions supplied with each product.
Failure to comply with these instructions could result in death or serious injury.
GK Series
•
Industrial Safety Products
•
189
GK
GKB- Metal Standard
GKC - (w/1 LED)
12...250 Vac/dc
GKD - (w/2 LED)
18...30 Vdc - EN 50041
Technical Data
Switch Type
Snap-action contacts, 1 Normally Closed/1 Normally Open
13
14
GK
190
up to 15 million
operations
IP 67
NEMA/UL
type 1, 4, 12, 13
Temperature
Operating:
range
-25 °C to +85 °C /
-13 °F to +185 °F
Storage:
-40 °C to +85 °C /
-40 °F to +185 °F
Approvals*
IEC 60947-5-1
EN 60947-5-1
ac15 A300/A600
dc13 Q300
UL & CSA
Operating forces:Insertion
force: 35 N / 8 lb
Extraction force: 28 N / 6 lb
Vibration
10 g conforming to IEC 68-2-6
Shock
50 g conforming to IEC 68-2-27
Terminal marking
to EN 50013
* See Standards (page 179)
Mechanical
life
Degree of
protection
Zb
21
22
1
Slow Acting, 2 Normally Closed
21
22
6
2Y
11
12
Slow Acting, 3 Normally Closed/1 Normally Open
Low energy contacts
11
21
31
12
22
32
2Y
36
Zb
43
44
Dimensions in mm / in
42 /
1.65
32 /
1.26
45,7
1.80
31 /
1.22
121,6 /
4.79
35 /
1.38
60 /
2.36
82 /
3.23
75,9 /
2.99
7,3 /
0.29
42,6 /
1.68
ø 5,3 /
0.21
30 /
1.18
5,3 /
0.21
Conduit
Thread
Standard =
B
A
=
1/2" NPT
with 1 LED =
C
C
= 20 mm
Switch Ordering:
GK
X
X
•
Industrial Safety Products
•
X
OR
XX
Example:
GKBC36LX + GKZ56
GK Series
Head Orientation
Key Type (sold separately)
9/
0.35
Straight Key
8,5 /
0.33
49,8 /
1.96
20 /
0.79
L
14 /
0.55
2x ø 5,3 /
0.21
15 /
0.59
3/
0.12
6
Door swing radius down to 250 mm / 9.84 in
90° Key
8,5 /
0.33
14 /
0.55
2 x ø 5,3 /
0.21
49,8 /
1.96
7
40 /
1.57
52 /
2.05
Door swing radius down to 250 mm / 9.84 in
Spring-loaded Key: Up/Down
17,8 /
0.70
8,5 /
0.33
2 X ø 5,3 /
18,5 /
0.73
13,5 /
0.53
84,9 /
3.34
0.21
40 /
30 /
1.57
1.18
8
14 /
0.55
Door swing radius down to 150 mm / 5.9 in
Spring-loaded Key: Left/Right
8,5 /
0.33
84,9 /
3.34
14 /
0.55
20,5 /
0.81
2 X ø 5,3 /
0.21
9
30 /
1.18
40 /
1.57
18,5 /
0.73
13,5 /
0.53
Door swing radius down to 150 mm / 5.9 in
Key Ordering:
X X
+
GKZ5
GK Series
•
Industrial Safety Products
•
X
191
GK
77 /
3.03
Accessories
The GKZL2 lockout device is for use with both the GK and GKR/GKL Series Dual Entry Head products. The lockout device does not activate the switch.
It is designed to prevent a key from being inserted either manually, or by the access door being closed while maintenance personnel are working on
the machine. When inserted, the lockout device accomodates up to four padlocks to prevent unauthorised removal of the device
Mounting dimensional diagram (mm/in):
GK
192
42,72 /
1.682
71,25 /
2.805
26,50 /
1.043
10,48 /
0.413
43,25 /
1.703
20 /
0.787
12,25 /
0.482
ø 3,50 /
0.138
ø 8,89 /
0.350
Ordering:
GKZL2
•
Industrial Safety Products
•
GK Series
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