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Christmas/New Year Delay Notice: Many suppliers are closed 22 Dec – 15 Jan. Some orders may experience delays.
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Incremental Rotary Encoder | 900 Pulses/Rev | IP65/IP67 Rated | High Precision | by SICK

BRAND: SICK
SKU: 1083885
$1,172.20 List price: $1,473.30
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The Incremental Rotary Encoder DFS25A-B2C2D000900 offers high precision with a measuring step deviation of ±0.008°, making it ideal for industrial automation and control systems. With robust mechanical design and IP65/IP67 ratings, it withstands harsh environments while providing reliable position and speed measurement for robotics and manufacturing applications.
Technical Specifications
  • Pulses per revolution: 900
  • Measuring step: ±90°, electric/pulses per revolution
  • Measuring step deviation: ±0.008° pulses 100 ... 10,000
  • Error limits: ±0.03°
  • Communication interface: Incremental TTL / RS-422
  • Number of signal channels: 6-channel
  • 0-set function via hardware pin: Yes, H-active
  • Initialization time: 40 ms
  • Output frequency: 820 kHz
  • Load current: 30 mA
  • Power consumption: 0.7 W (without load)
  • Connection type: Male connector, MS, 10-pin, radial
  • Supply voltage: 8 ... 30 V
  • Reference signal: 1, 90° electric, logically gated with A and B
  • Code sequence: Clockwise
  • Reverse polarity protection: Yes
  • Short-circuit protection of outputs: Yes
  • Mechanical design: Solid shaft, Servo flange
  • Shaft diameter: 3/8″ with flat
  • Shaft length: 19 mm
  • Shaft material: Stainless steel 1.4305
  • Flange material: Aluminum
  • Housing material: Aluminum
  • Start up torque: 0.5 Ncm (+20 °C)
  • Operating torque: 0.3 Ncm (+20 °C)
  • Permissible shaft loading: 80 N (radial), 40 N (axial)
  • Operating speed: ≤ 9,000 min⁻¹
  • Moment of inertia of rotor: 15 gcm²
  • Bearing lifetime: 3.6 x 10⁹ revolutions
  • Angular acceleration: ≤ 500,000 rad/s²
  • EMC: According to EN 61000-6-2 and EN 61000-6-3
  • Enclosure rating: IP65 shaft side, IP67 housing side
  • Permissible relative humidity: 90% (no condensation)
  • Operating temperature range: –30 °C to +85 °C
  • Storage temperature range: –40 °C to +100 °C
  • Resistance to shocks: 100 g, 11 ms
  • Resistance to vibration: 30 g, 10 Hz to 2,000 Hz
  • Dimensions (H x L x W): 58mm x 40mm x 58mm
  • Weight: 0.4 kg
Key Features
  • High precision with measuring step deviation of ±0.008°
  • Robust mechanical design with solid shaft and servo flange
  • IP65 rated on shaft side and IP67 on housing side for harsh environments
  • Supports incremental TTL/RS-422 communication interface
  • Reverse polarity and short-circuit protection
  • Operating temperature range from -30°C to +85°C
  • High resistance to shock (100 g) and vibration (30 g)
Professional Installation Requirements
  • Installation by a qualified technician or electrician is recommended to ensure proper connection and calibration.
Applications
  • Industrial automation and control systems
  • Robotics and servo motor feedback
  • Position and speed measurement in manufacturing
  • Machine tool and conveyor systems
Standards & Compliance
  • Complies with AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
  • Durable design reduces need for frequent replacements, minimizing waste
  • Low power consumption of 0.7 W enhances energy efficiency
Warranty Information

Standard manufacturer warranty applies; please refer to SICK for specific warranty terms.

Available Now

The SICK DFS25A-B2C2D000900 incremental encoder is available for immediate purchase, ideal for industrial automation and precision measurement applications.