Safety Interlock Switch
IDEM SAFETY SWITCHES Ltd., 2 Ormside Close, Hindley Industrial Estate, Hindley Green, Wigan, WN2 4HR UK. Tel: +44 (0)1942 257070 Fax.: +44 (0)1942 257076
IDEM (USA) 4416 Technology Drive, Fremont, CA 94538 Tel:510-445-0751 Fax:1866-431-7064 email:
Web:
www.idemsafety.com
6.
Always ensure that when fitting electrical conductors that they are routed correctly and do not interfere with the switch cover during fitting.
Recommended conductor size is 1.5 – 2.5sq.mm, contact terminal tightening torque is 1Nm.
7.
Tightening torque for the lid screw and cable glands is1Nm to maintain IP rating.
8.
Check that the machine is stopped and cannot be started when the interlocked guard is open.
9.
After installation apply tamper resistance paint or compound to the actuator and switch mounting bolts.
Maintenance:
Every Week: Check the switch actuator and body for signs of mechanical damage and wear. Replace any switch showing damage.
Check that the machine is stopped and cannot be started when the interlocked guard is open.
Every 6 Months: Check for mechanical damage to switch body or actuator. Replace any switch showing damage.
Isolate power and remove cover. Check screw terminal tightness and check for signs of moisture ingress. Never attempt to repair any switch.
Standards
:
EN1088, 50047, IEC 60947-5-1, EN60204-1
ISO 13849-1, EN62061, UL508
Safety Classification & Reliability Data:
Mechanical Reliability B10d
2.5 x 10
6
operations at 100mA load
EN 954-1
Up to Category 4 with Safety Relay
ISO 13849-1
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
3.4 x 10
-8
Proof Test Interval (Life)
35 years
MTTFd
356 years
Utilization Category
AC15 A300 3A
Thermal Current (lth)
10A
Rated Insulation/Withstand Voltages
600VAC/2500VAC
Actuator Travel/Force for Positive Opening
6mm/12N
Actuator Entry Minimum Radius
175mm Standard 100mm Flexible
Maximum Approach Withdrawal Speed
600mm/s
Body Material
Polyester
Enclosure Protection
IP67
Operating Temperature
-25C +80C
Vibration
IEC 68-2-6 10-55Hz+1Hz
Excursion: 0.35mm, 1 octave/min
Conduit Entry
Various (see sales part numbers)
Fixing
2 x M4
R>=150mm
25 +/- 2mm
Minimum operating radius
Application Example: Door Interlock - Dual Channel non-monitored.
This system shows interlock switch circuits 11-12 and 21-22 configured to allow dual circuit direct
feeds to contactor coils K1 and K2.
When the start button is pressed and then released, the auxiliary contacts (A) of contactors K1 and
K2 maintain the feed to the contactor coils.
Opening of the Interlock Switch or depressing the E Stop will isolate power to the contactor coils.
Re-start can only occur providing the Guard is closed and the E Stop is reset.
System is shown with the guards closed and the machine able to start.
Doc: 102503
Jan. 2013
Information with regard to UL 508:
Type 1 Enclosures.
Control Number 35NV
Use 16 - 12AWG copper conductors rated
90ºC minimum.
Intended for same polarity use and
one polymeric conduit connection.
Electrical Rating:
Max. Switching Current / Volt / Amp:
120V. 6A. (720VA break) PF 0.38
240V. 3A. (720VA break) PF 0.38
Operating Temperature 40ºC
Outline fixing dimensions mm
