Specifications are subject to change without notice (11.05.05) 1
Housing Ordering no. Ordering no.
W x H x D Receiver without timer Emitter
25 x 65 x 81
PG 13.5 cable gland PMT 20R G PMT 20 GM
1/2" NPT cable gland PMT 20R I PMT 20 IM
Photoelectrics
•Range: 20 m
•Modulated, infrared light
•LED-indication for power supply ON (emitter)
and target detected (receiver)
•Multi supply voltage:
24 VDC and 24 VAC, 50/60 Hz
•25 x 65 x 81 mm reinforced PC housing, IP 67
Product Description Ordering Key
Through-beam photoelectric
switch. Range up to 20 m.
Immune to ambient light.
Precise detection through
narrow beam. LED-indication.
Protection degree IP 67.
Screw terminal connection.
25 x 65 x 81 mm plastic
housing. PG 13.5 or 1/2"
NPT cable gland. With Mute
Input on the transmitter the
sensor fullfill EN12978
Type
Receiver
Cable gland
Mute Input
Type Selection
Specifications Emitter Specifications Receiver
Rated operational volt. (UB)
24 VDC ± 20%
AC: 45 to 65 Hz 24 VAC ± 20%
Rated operational power ≤1 W (1.2 VA)
Light source GaAIAs LED, 880 nm
Light type Infrared, modulated
Optical angle ±2°
Indication
Power supply ON LED, green
Output function Switch selectable, make or
break switching
Rated operational volt. (UB)10.8 to 264 VDC
AC: 45 to 65 Hz 21.6 to 264 V AC
Rated operational power
(Relay ON) ≤2 W (2.5 VA)
Output
Contact ratings (AgCdO) µ (micr o gap)
Resistive loads AC 1 3 A/250 V AC
DC 1 3 A/30 VDC
Small inductive loads AC 15 2 A/250 V AC
DC 13 3 A/30 VDC
Mechanical life ≥40 x 106operations
Electrical life ≥5 x 105operations
at 220 V AC - 3 A r esistive
load: 360 impulses/h
Dielectric voltage
2 kV AC
(rms)
(cont./supply)
Sensitivity Adjustable, single turn pot.
Optical angle ±2°
Rated operating dist. (Sn)
(0 to 5,000 lux) 20 m
Operating frequency (f) 20 Hz
Response time OFF-ON (tON)≤20 ms
ON-OFF (tOFF)≤20 ms
Power ON delay ( tv)≤300 ms (typ. 100 ms)
Output function Mute function
Thr ough-beam, Industrial Door Market
Type PMT20.M, Mute Input
PMT20 R G M
2Specifications are subject to change without notice (11.05.05)
PMT20.M
Connection Diagram
Time adjustment
(optional)
LED
DIP switches
12 - 240 VDC
24 - 240 VAC
50/60 Hz
30 VDC
250 VAC
Max. 3 A
Sensitivity
adjustment
Switch
1 2 3
PMT 20R.M 1 Break switching
2 Make switching
Don't care
Upper postion ON (Mode 1)
Lower position OFF (Mode 0)
Selection of Function
General Specifications
Environment
Overvoltage category III (IEC 60664/60664A,
60947-1)
Pollution degree 3 (IEC 60664/60664A,
60947-1)
Degree of pr otection IP 67 (IEC 60529, 60947-1)
Temperature
Operating
-25° to +55°C (-13° to +131°F)
Storage
-30° to +80°C (-22° to +176°F)
Vibration 10 to 150 Hz, 0.5 mm/7.5 g
(IEC 60068-2-6)
Shock 2 x 1 m & 100 x 0.5 m
(IEC 60068-2-32)
Housing material
Body PC, grey, reinfor ced
Front PC, black
Cover PC, black
Cable gland PA, black, reinforced
Mounting bracket Steel, black
Connection
Screw terminal 5 x 2 x 1 mm2
Cable gland PG 13.5 or 1/2" NPT
for cable 6 to 10 mm
Weight
Emitter 110 g
Receiver 115 g
Approvals UL, CSA
CE-marking Yes
LED
Mute input MAKE/BREAKE
Power supply: 24 VDC
or 24 AC, 50/60 Hz
Mute input voltage: 24 VDC
or 24 AC, 50/60 Hz
L
N
M
PMT20 Emitter
Break
Make
Specifications are subject to change without notice (11.05.05) 3
PMT20.M
Power supply
Target present
Object present
Operation Diagram
Dimensions
t = Time delay
tv = Power ON delay
Func 1. Output ON
Func 2. Output ON
Func 3. Output ON
Func 4. Output ON
Func 5. Output ON
Func 6. Output ON
Func 7. Output ON
Func 8. Output ON
Func 9. Output ON
Func 10. Output ON
PMT 20 PMT 20 with angle bracket
or 1/2" NPT
4Specifications are subject to change without notice (11.05.05)
Installation Hints
Relief of cable strain Protection of the sensing face Switch mounted on mobile carrierTo avoid interference from inductive voltage/
current peaks, separate the prox. switch pow-
er cables from any other power cables, e.g.
motor, contactor or solenoid cables Incorrect
Correct
The cable should not be pulled A proximity switch should not serve as
mechanical stop Any repetitive flexing of the
cable should be avoided
PMT20.M
Accessories
•MB02 (longer mounting bracket),
please refer to "Accessories"
Delivery Contents
•Photoelectric switch: PMT 20
•Cable gland
•Installation instruction
•Mounting bracket
•Packaging: Corrugated cardboard (environmentally
friendly recycling material)
