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Safety Interlock Switches - Tongue Operated
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4 Actuator Entry Positions–Designed with a Rotatable Head
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Plastic or 316 SS Head
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Options
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3 Pole Contact Blocks
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3 Conduit Entries
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Industry Standard Fitting: 52 W x 98 L x 40 mm Fixing (2.05 x 3.86 x 1.57")
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KP and K-SS Series tongue
operated safety interlock switches
are designed to fit to the leading
edge of sliding, hinged or lift
off machine guards to provide
positively operated switching
contacts and provide a tamper
resistant, not easily defeatable key
mechanism. They will provide a
robust position interlock detection
for moving guards.
Depending upon the risk
assessment for the application,
they can be used independently
to provide positively operated
contacts to EN60947-5-1 or
they can be used in combination
with any dual channel safety
monitoring relays to provide up
to Category 4 PLe ISO13849-1
or SIL3 EN62061. They offer a
choice of various actuators to aid
installation and maintain durability.
The switch is rigidly mounted
to the frame of the guard or
machine. The actuator is fitted
to the moving part (frame) of the
guard and is aligned to the switch
entry aperture. The actuator
profile is designed to match a
cam mechanism within the switch
head and provides a positively
operated, not easily defeatable
interlock switch. When the actuator
is inserted into the switch thesafety contacts close and allow
the machine start circuit to be
enabled. When the actuator is
withdrawn from the switch the
safety contacts are positively
opened and the machine circuit is
broken. KP Series switches use
high specification plastic housings
and are sealed to NEMA 6 (IP67)
and provide long term protection
against moisture ingress.
K-SS Series switches have a
rugged 316 stainless steel body
and have been designed to cope
with the rigorous applications
of the food processing,
pharmaceutical, packaging and
petrochemical industries. They
have IP69K enclosure protection
and can be pressure hosed with
detergent at high pressure and
temperature.
Specifications
Standards: ISO14119, EN60947-5-1, EN60204-1, ISO13849-1, EN62061 UL508
Safety Classification and Reliability Data
Mechanical Reliability B10d: 2.5 x 106 operations at 100 mA load
ISO13849-1: Up to PLe depending upon
system architecture
EN62061: Up to SIL3 depending upon
system architecture
Safety Data – Annual Usage: 8 cycles
per hour/24 hours per day/365 days
PFHd: 3.44 x 10-8
Proof Test Interval (Life): 35 years
MTTFd: 356 years
Utilization Category: AC15 A300 3A
Thermal Current (lth): 5A
Rated Insulation/Withstand Voltages: 500 Vac/2500 Vac
Travel for Positive Opening: 8 mm (0.31")
Actuator Entry Minimum Radius:
Standard: 175 mm (6.89")
Flexible: 100 mm (3.93")
Maximum Approach/Withdrawal Speed: 600 mm/s
Body Material:
KP Series: Polyester
K-SS Series: 316 SS
Head Material:
KP Series: Polyester or 316 SS
K-SS Series: 316 SS
Enclosure Protection:
KP Series: NEMA 6 (IP67)
K-SS Series: NEMA 6 (IP67), NEMA PW12 (IP69K)
Operating Temperature: -25 to 80°C (-13 to 176°F)
Vibration: IEC 68-2-6, 10 to 55 Hz + 1 Hz; excursion: 0.35 mm, 1 octave/min
Conduit Entry: 1/2 NPT or M12 8-way (See to Order Table Below)
Fixing: 2 x M5
Weight (of Switch):
KP Series: 160 g (0.35 lb)
K-SS Series: 635 g (1.40 lb)
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† All dollar amounts on this site are shown in US currency.
Note: *KP and K-SS Series tongue operated safety interlock switches (switch only, actuator sold separately).
Ordering Example: (1) 140107 Standard actuator, USD$415.00,
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