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GKNC21

Description
SWITCH SAFETY 3PST 6A 120V
CategoryMechanical and electronic products    switch   
File Size460KB,5 Pages
ManufacturerHoneywell
Websitehttp://www.ssec.honeywell.com/
Environmental Compliance
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GKNC21 Overview

SWITCH SAFETY 3PST 6A 120V

GKNC21 Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerHoneywell
Reach Compliance Codeunknown
ECCN codeEAR99
body width30 mm
body height90 mm
Body length or diameter52 mm
Manufacturer's serial numberGKN
Installation featuresPANEL MOUNT
Maximum operating temperature70 °C
Minimum operating temperature-25 °C
sealIP67
surface mountNO
Switch actionLATCHED
switch function3PST
Switch typeSNAP ACTING/LIMIT SWITCH
Termination typeSCREW
MICRO SWITCH Key Actuated Safety Switches
GKN Series
004740
Datasheet
Issue 3
FEATURES
Red switch body for easy safety recognition
Four different styles of stainless steel actuator keys
Three conduits with 0.5-14 NPT or M20 thread connection
Positive opening action of normally closed contacts
to EN/IEC 60947-5-1-3 specification
Three contacts; 2NC/1NO or 3NC
Switch chamber environmentally sealed to IP67 and
NEMA 1, 4X (indoor), 12, and 13
CCC, CE, and UL certifications
Designed and agency evaluated for safety functions up to
and including a SIL3 level
DESCRIPTION
The GKN Series key-actuated safety interlocking limit switches
are designed for applications where machine guarding is
required. Up to 3 normally closed contacts are available per
switch to meet most control circuit applications. All normally
closed contacts are positive opening
. Direct mechanical
linkage within the switch force the normally closed contacts
open when the actuator key is removed from the switch. When
the actuator key is re-inserted into the switch, the contacts
change state. The double-insulated plastic housing and
stainless steel actuator-key are designed for demanding
environments with the internal switch enclosure being
environmentally sealed. The design of the switch allows 4
actuator-key entry locations for installation flexibility. Three
conduits are integral to each switch for convenience of
electrical connections.
POTENTIAL APPLICATIONS
• Safety interlock for guards or doors on equipment and
machinery
• Designed for hinge or sliding guards or doors
DIFFERENTIATION
• Up to three NC contacts for control, signaling, or contact
redundancy
• Four actuator key entry positions
• Optional flexible key for small door radius
• Optional funnel key where door misalignment may occur
PORTFOLIO
In addition to the GKN Series safety interlocking limit switches,
Honeywell offers other safety interlocking limit switches. These
include the miniature plastic body GKM series, EN50047
plastic body GKE Series, EN50041 metal body GKB Series,
and metal body solenoid (trapped key) GKL/R Series. Non-
interlocking safety limit switches include the GSS Series, non-
contact FF Series, and 1CPS Series and 2CPS Series cable/
rope pull safety limit switches.
VALUE TO CUSTOMERS
• Common mounting footprint for ease of installation
• Double insulated housing, no ground required
• Large wiring cavity with three conduit entries
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