GLD20G-QLRC2170ZZZ

Compact photoelectric sensors
G20

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Features

Functional principle

Photoelectric retro-reflective sensor

Functional principle detail

With minimum distance to reflector (dual lens system)

Sensing range
Sensing range min.	0.03 m
Sensing range max.	20 m
Maximum distance range from reflector to sensor (operating reserve 1)	0.03 m … 20 m
Recommended distance range from reflector to sensor (operating reserve 2)	0.03 m … 16 m
Reference reflector	Reflector PL80A

Polarisation filters

Yes

Emitted beam
Light source	LED
Type of light	Visible red light
Shape of light spot	Rectangular
Light spot size (distance)	Ø 200 mm (5,000 mm)
Maximum dispersion of the emitted beam around the standardized transmission axis (squint angle)	< +/- 1.5° (at Ta = +23 °C)

Key LED figures
Normative reference	EN 62471:2008-09 \| IEC 62471:2006, modified
LED risk group marking	Free group
Wave length	630 nm
Average service life	100,000 h at T_a = +25 °C

Adjustment
Potentiometer	For sensitivity adjustment, 270°

Indication
LED green	Operating indicator Static on: power on
LED yellow	Status of received light beam Static on: object not present Static off: object present

Electrical data

Supply voltage U_B

21.6 V AC/DC … 253 V AC/DC

Ripple

< 10 %

Usage category

DC-13 (according to EN 60947-1)

AC-15 (according to EN 60947-1)

Current consumption

≤ 10 mA, Without load. At 230 V AC/DC

≤ 45 mA, Without load. At 24 V AC/DC

Protection class

Digital output
Number	2 (Complementary)
Type	Relay, SPDT, electrically isolated ¹⁾
Output current I_max.	3 A@250 V AC, 4 A@24 VDC, 0.22 A@250 V DC
	UL: 4 A@250 V AC, general use
	4 A @ 250 V AC, resistive (NO)
	3 A @ 250 V AC, resistive (NC)
	4 A @ 24 V DC, NO, general use
	3 A @ 24 V DC, NC, general use
	R300/B300 (NO contacts only)
Response time	≤ 15 ms
Switching frequency	10 Hz ²⁾

Pin/Wire assignment
BN 1	+ (L+)
BU 2	N
WH 3	Relay COM
BK 4	Relay NO Relay output, light switching, object present → output HIGH
GY 5	Relay NC Relay output, dark switching, object present → output LOW

¹⁾ Suitable arc suppression with inductive or capacitive load. Relay contacts are separated from the supply voltage by a basic isolation of 3.2 mm. Depending on the application, additional insulation may be required in the user wiring.
²⁾ With light/dark ratio 1:1.

Mechanical data

Housing

Rectangular

Dimensions (W x H x D)

23.5 mm x 74.5 mm x 63 mm

Connection

Terminal connection, 5 terminals

Material
Housing	Plastic, ABS
Front screen	Plastic, PMMA

Weight

88 g

Ambient data

Enclosure rating	IP67 (EN 60529)
Ambient operating temperature	–30 °C … +60 °C ¹⁾
Ambient temperature, storage	–40 °C … +70 °C
Typ. Ambient light immunity	Sunlight: ≤ 20,000 lx
Shock resistance	30 g, 11 ms (3 positive and 3 negative shocks along X, Y, Z axes, 18 total shocks (EN60068-2-27))
Vibration resistance	10 Hz … 1,000 Hz (Amplitude 1 mm, 3 x 30 min (EN60068-2-6))
Air humidity	35 % … 95 %, Relative humidity (no condensation)
Electromagnetic compatibility (EMC)	EN 60947-5-2, EN 61000-6-3
UL File No.	NRKH.E348498 & NRKH7.E348498

¹⁾ The max. ambient temperature is 50 °C (UL).

Classifications

eCl@ss 5.0	27270902
eCl@ss 5.1.4	27270902
eCl@ss 6.0	27270902
eCl@ss 6.2	27270902
eCl@ss 7.0	27270902
eCl@ss 8.0	27270902
eCl@ss 8.1	27270902
eCl@ss 9.0	27270902
eCl@ss 10.0	27270902
eCl@ss 11.0	27270902
eCl@ss 12.0	27270904
ETIM 5.0	EC002717
ETIM 6.0	EC002717
ETIM 7.0	EC002717
ETIM 8.0	EC002717
UNSPSC 16.0901	39121528