Edwards Signaling 343-BT - Manual (Page 3)

Wiring Diagram for Category 4
Inputs shown with safety gate/guard in closed position. Two Series 300-B GuardSwitches™ with one INT relay are required for each safety gate.
When first applying the INT Safety Monitor Relay, the inputs must be cycled to check for proper operation before the output contacts close. To cycle the inputs, the guard must be
opened and then closed. This start-up test is sufficient; however, we recommend that the proper operation of the switches and relay be checked at least every 24 hours.
*300-BLT-
*Or other DPST GuardSwitch
(See the 300-BT Series
installation instructions)
( – )
( + )
INT-03-230: 230V AC
INT-03-120: 120V AC
INT-03-024: 24V DC
R e q u i r e d F a s t o r
S l o w - A c t i n g F u s e :
( 2 5 0 V , 5 x 2 0 m m F )
I N T - 0 3 - 2 3 0 : 4 0 m A
I N T - 0 3 - 1 2 0 : 8 0 m A
I N T - 0 3 - 0 2 4 : 1 / 4 A
Required Fast or
Slow-Acting
Fuses: 4A (250V,
5x20 mm F
W
H
T B
L
K R
E
D B
L
U
*300-BLT-
W
H
T B
L
K R
E
D B
L
U
Note – The LED on the BLT model
will be ON when the guard is open
Fuses: 1A (250V)
RESET
A
SAFE AUX.
B C D E F G
OUTPUTS
230 VAC
60 VDC
120 VAC
30 VDC
LOADS
– +
L1 L2 1 2 X1 X2 Y1 Y2
N.O. N.C.
Safety Monitor Relay
INT-03
These switches are TUV certified for CE applications only when used with the INT
Safety Monitor Relays. See Risk Category 3 and Category 4 wiring diagrams above.
CE Compliance Information General Specifications
Enclosure Kynar ® , Polyvinylidene Fluoride
Temperature Range 14 ° F to 150 ° F (-10 ° C to 65 ° C)
Environmental Hermetically Sealed Contact Switch
Encapsulated in Polyurethane
NEMA Rating 1, 2, 4, 4X, 5, 12, 12K, 13
Protection Class IP 67
Response Time 1 msec
Individual circuits The two circuits do not switch simultaneously, and depend
on the speed of the guard closure. Based on closure speed
of 1' per second and a gap of 1/8", a delay less than
50 msec is typical.
Life Cycles 100,000 Under Full Load;
Up to 200,000,000 Under Dry Circuit
Lead Types/O.D. 18/4 SJTOW (K)/0.34" (0.86cm)
22/4 PVC Jacketed (J)/0.19" (0.48cm)
22/6 PVC Jacketed (J)/0.21" (0.53cm)
UL/CSA/TUV All Models
File E 122942 LR89176
European Directives
Machinery Directive (89/392/EEC)
EMC Directive (89/336/EEC)
Low Voltage Directive (73/23/EEC)
Specific European Standards
EN60204-1 Safety of electrical equipment of
industrial machines
EN292 Part 1, 2 Safety of Machinery, basic
terminology, technical principles
EN954-1 Risk Assessment Category 3 or 4 depending
on wiring method, see diagrams
EN55081-2 Electromagnetic Emissions
EN50082-2 Electromagnetic Immunity
EN1088 Interlocking Devices
EN947-5-3 Control Circuit Devices
EN50178 Safety of Electrical Equipment
IEC 664-1 Insulation requirements
IEC 68, part 2-1, 2-2, 2-3, 2-8, 2-14, 2-27, 2-30
Declaration of Conformity
available upon request.
GE Security Industrial GuardSwitch TM Series 300 www.ge-security.com/industrial