Mechanical characteristics
Maximum speed		6000 min-1
Mass moment of inertia	shaft version	approx. 0.4 x 10-6 kgm2
	hollow shaft version	1.4 x 10-6 kgm2
Starting torque		at 20°C [68°F]
	shaft version	< 0.007 Nm
	hollow shaft version	< 0.01 Nm
Shaft load capacity	radial	20 N
	axial	10 N
Weight		approx. 0.1 kg [35.27 oz]
Protection		acc. to EN 60529
	bearings, shaft	IP65
	cable outlet	IP67
Working temperature range		-20°C ... +70°C [-4°F ... 158°F] 1)
Materials	shaft / hollow shaft	stainless steel
	housing, flange	plastic PPA, 40 % CF (carbon fiber)
	cable	PVC
Shock resistance acc. to EN 60068-2-27		1000 m/s2, 6 ms
Vibration resistance acc. to EN 60068-2-6		100 m/s2, 10 ... 2000 Hz

Electrical characteristics
Output circuit	RS422 (TTL compatible)	Push-pull (7272 comp.) 4)	Push-pull (7272 comp.) 4)
Power supply	5 V DC (±5 %)	5 ... 30 V DC	10 ... 30 V DC
Power consumption with	typ. 40 mA	typ. 50 mA	typ. 50 mA
inverted signal (no load)	max. 90 mA	max. 100 mA	max. 100 mA
Permissible load / channel	max. +/- 20 mA	max. +/- 20 mA	max. +/- 20 mA
Pulse frequency	max. 250 kHz	max. 250 kHz	max. 250 kHz
Signal level HIGH	min. 2.5 V	min. +V - 2.0 V	min. +V - 2.0 V
Signal level LOW	max. 0.5 V	max. 0.5 V	max. 0.5 V
Rising edge time tr	max. 200 ns	max. 1 μs	max. 1 μs
Falling edge time tf	max. 200 ns	max. 1 μs	max. 1 μs
Short circuit proof outputs 2)	yes 3)	yes	yes
Reverse polarity protection of the power suppl	no	no	yes
UL approval	file no. E224618
CE compliant acc. to	EMC guideline 2014/30/EU RoHS guideline 2011/65/EU

Carbon fiber-reinforced plastic housing – economical sensor solution.
The incremental compact encoders 3700 / 3720 with optical sensors are available with a resolution of up to 1024 pulses per revolution. The carbon fiber reinforced plastic housing of these incremental encoders is nevertheless extremely robust and resistant. Due to their high IP protection, they are also suitable for outdoor use.

Reliable
Tube Tech® cable outlet with extremely high strain relief.
Also suitable for outdoor use due to the high IP protection.

Versatile
Continuous hollow shaft up to 8 mm.
Only 37 mm diameter dimension.
Up to 1024 pulses per revolution.

• Delivery of spare parts and industrial equipment throughout the USA by Fedex transport company.
• Flexible payment system accepting bank transfers, MasterCard, VISA, PayPall, App Pay, Google Pay.
• Directly from stock and on order.