Estimated Lead Time : Usually ships in 1-10 working days
Manufacturer : Honeywell
Part Number : GKNC21
MICRO SWITCH Key Actuated Safety Switches
GKN Series
Description : Multi-entry, key-operated safety switch
Agency certifications : cULus, CE, CCC
Housing material : Glass-filled nylon
Actuator key material : Stainless steel
Electrical connection : Three conduits, 20 mm or 0.5-14 NPT
Contact/switch options : 3NC or 2NC/1NO
Contact type : Slow action break-before-make (BBM), or slow action
Contact design : Double break, electrically separated (Zb)
Contact material : Silver alloy
Electrical ratings : See table 2 below
Utilization category : AC-15, A600; DC-13, Q300
Rated operational voltage (Ue) : 120 Vac, 240 Vac, 600 Vac; 125 Vdc, 250 Vdc
Rated operational current (Ie) : 6 A, 3 A, 1.2 A; 0.55 A, 0.27 A
Thermal current (Ith) : 10 A
Rated insulation (Ui) : 600 V
Rated impulse withstand
voltage (Uimp) : 2500 V
Short circuit protection
device (SCPD) : Class J fuse (10 A/600 V)
Pollution degree : 2 (micro-environment, inside enclosure) 3 (macro-environment, installation environment)
Environmental sealing : IP67, NEMA 1, 4X (indoor), 12, and 13
Operating temperature : -25 °C to 70 °C [-13 °F to 158 °F]
Shock : 50 G per IEC 60068-2-27
Vibration : 10 G per IEC 60068-2-6
MCTF (Mechanical life) : >1,000,000 cycles with single-sided confidence of 100%
MCTF (Electrical life) : >25,000 cycles with single-sided confidence of 75%
SIL Capability² : SIL 2 capable with HFT³ = 0; SIL 3 capable with HFT³ =1
Proof test interval : 1 year
Shipping Weight : 2 Kg
