MICRO SWITCH™ Solenoid Safety Interlock Switches
GKL/R Series
004789
Datasheet
Issue 1
FEATURES
• Electrostatic epoxy coated die-cast zinc housing
• Four different rugged stainless steel keys (two rigid and two
flexible)
• 1NC/1NO, 2NC, 2NC/1NO, 2NC/2NO, 3NC/1NO, or 4NC
contact options each for monitoring the key and the solenoid
• Positive opening normally closed contacts
to
EN/IEC 60947-5-1-3 specification
• Mechanical latch (solenoid power to unlock) or solenoid latch
(de-energize solenoid to unlock)
• Wide range of supply voltages for solenoid
• Manual unlock feature on front cover
• Two LEDs in housing cover for monitoring the actuator key
switch contacts and the solenoid switch contacts
• Different conduit options for global applications
• Operating temp. range: -25 °C to 85 °C [-13 °F to 185 °F]
• Switch body environmentally sealed to IP68 and
NEMA 1, 4, 6P, 12, & 13
• CE, CSA, and UL agency certifications
• Designed and agency evaluated for safety functions up to and
including a SIL3 level
DESCRIPTION
MICRO SWITCH™ GKL/R Series switches are a heavy-duty key
operated solenoid safety interlock switch incorporating a key
trapping mechanism. The trapped key attached to the guard
cannot be removed from the switch until the solenoid circuit of
the switch has received a remote signal (from a control device)
indicating the hazardous process has subsided. This design is
for use on machinery where an instant stop is either impossible
(due to the momentum of the machine) or impractical due to
machine conditions (such as completing a machine cycle or
reducing the temperature to a safe level). There are independent
contacts inside the key switch which monitor the key position
and the solenoid with a range of different contact arrangements
to satisfy most application requirements. All normally closed
contacts of the switch are positive opening
. The key switch
also incorporates a manual override feature on the front cover
which allows removal of the key for emergency access.
To facilitate installation, the switch is available as a GKL Series
(head to the left) or a GKR Series (head to the right). The GKL/R
Series switches are designed with dual-entry positions (side or
top) for the key.
POTENTIAL APPLICATIONS
• Potential applications include gates, guards, and doors for:
- Machine tools
- Metalworking and punch press machinery
- Plastic molding machines
- Die cast machinery
- Robotic cells
- Special purpose machinery
DIFFERENTIATION
• Up to four electrically independent contacts for each of the
key and solenoid for monitoring the respective positions
• Gold contacts available for low energy applications
• Two LED indicators (green and red) to monitor status of key
switch and solenoid switch
• Rugged stainless steel rigid and flexible keys
• Designed and evaluated up to and including a safety integrity
level (SIL3) per IEC 61508-2:2010
VALUE TO CUSTOMERS
• Trapped actuator key cannot be removed from the switch until
the hazardous condition has subsided
• Trapped key available as a mechanical latch or solenoid latch
• Heavy duty metal housing assembly resists shock, vibration,
and oil/coolant sprays
• Side or top entry positions (8 positions) for key
• Multiple positive opening normally closed (NC) contacts and
normally open (NO) contacts options
• Lockout device available, key cannot be inserted into switch
PORTFOLIO
Honeywell safety interlocking switches include the EN50041
metal body
GK Series,
miniature plastic
GKM Series,
EN50047
plastic body
GKE Series,
and plastic body
GKN Series.
Honeywell also offers non-interlocking safety switches (GSS
Series),
non-contact safety switches (FF
Series)
and cable/rope-
pull safety switches (1CPS
& 2CPS
Series).
Sensing and Productivity Solutions
MICRO SWITCH™ Solenoid Safety Interlock Switches, GKL/R Series
Table 1. Specifications
Characteristic
Description
Certifications
Housing material
Key (actuator) material
Key styles (4)
Insertion force (nominal)
Extraction force (nominal)
Solenoid locking force
Solenoid voltages
Solenoid power (nominal)
Conduit/electrical connection
Contact/switch options* for key
and solenoid
Contact design
Contact material
Utilization category
Rated operational voltage (Ue)
Rated operational current (Ie)
Thermal current (Ith)
Rated insulation voltage (Ui)
Rated impulse withstand voltage
(Uimp)
Short circuit protective device
(SCPD)
Conditional short-circuit current
Pollution degree
Environmental sealing
Operating temperature
Shock
Vibration
MCTF (Mechanical life)
MCTF (Electrical life)
SIL capability
Proof test interval
LED pilot lights (2)
Parameter
Dual-entry - solenoid safety interlock switch
CSA (C22.2 No.14. File57323), UL (UL508, File E37138), CE (IEC 60947-1, IEC 60947-5-1)
Epoxy coated die-cast zinc
Stainless steel
Straight key, 90° key, flexible key up-down, flexible key side-side
35 N [8 lb]
28 N [6 lb]
1000 N [224 lb] max.
12 Vdc, 24 Vdc, 48 Vdc, 120 Vac, and 240 Vac
12 W
0.5 – 14 NPT, 20 mm, PG13,5 threaded conduit; 10-pin “Mini” style connector
1NC/1NO, 2 NC, 2NC/2NO, 3NC/1NO, 4NC
Double break, electrically separated
Silver alloy (standard); gold-plated silver alloy (low energy applications)
AC15, A300; DC13 Q300
240 Vac, 250 Vdc
3 A, 0.27 A
10 A
600 V
2500 V
Class J fuse (10 A)
1000 A
3
IP68; NEMA 1, 4, 6P, 12, & 13
-25 °C to 40 °C [-13 °F to 104 °F]
50 G per IEC 60068-2-27
10 G per IEC 60068-2-6
>2,500,000 cycles with single-sided confidence limit of 95 %
>60,000 cycles
Up to and including SIL3 (HFT1), IEC 61508-2:2010
1 year
One green LED and one red LED to monitor contact positions
.
*All normally closed (NC) contacts are positive opening
Table 2. Electrical Rating
ac
A300
Ue
Volts
120
240
AC15
Ie
Amps
6
3
VA Rating
Make
7200
7200
Break
720
720
Q300
Ue
Volts
24
125
250
DC13
Ie
Amps
2.8
0.55
0.27
VA Rating
Make
69
69
69
Break
69
69
69
1 V 10 μA min.
50 V 100 mA max.
dc
gold-plated contacts
2
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