PRECILEC RE.0444N series DC tachometer generator

​Product Overview

RE.0444N is a DC tachometer generator produced by PRECILEC, mainly used for industrial speed control and regulation, outputting high-quality signals, supporting cable connections, and providing a wide range of mechanical and electrical optional configurations.

Core structural characteristics

Parameter values

Polar number 2

Number of armature slots 19

Number of commutator segments 57

Insulation Class B (IEC 34-1)

Working temperature -30~+130 ℃

Protection level IP44 (standard); IP55 (with sealing cover)

Reversible rotation direction

Excitation method permanent magnet (Alnico)

Key electrical performance

Parameter symbol index

Maximum speed n 12000 rpm

Maximum induced electromotive force Em 600 V

Total ripple (peak to peak) Δ Ec ≤ 0.15%~0.5% ET

Rotating harmonic Δ Ep ≤ 0.2% E0

Slot harmonic Δ Ez ≤ 0.3% E

Electromotive force temperature drift -0.005%/℃

Filter time constant -0.47 ms

Load current Ie 5 mA

Mechanical parameters and installation

Installation type

B5: Flange installation (6 × D6.5)

B3: Base installation

Axis diameter options

Standard: 7mm, 11mm

Special: Maximum 14mm

Axis length: 30mm

weight

Single commutator: 1.8kg

Double commutator: 2.1kg

Bearings: Standard 8 × 22 × 7ZZ and other models

Optional configuration

Structural configuration

1 commutator/2 commutators

Electric brush type

EG: Electric graphite

CA: Silver graphite

Output sensitivity (voltage corresponding to 1000rpm)

20. 50, 120 V and other multiple levels

Protection: IP44/IP55

Temperature compensation: optional (model with C)

Wiring definition (counterclockwise, viewed from the shaft end)

Dual commutator

Group 1: Red Line+, White Line-

Group 2: Blue Line+Green Line-

Model Naming Instructions

Example: RE.0444N B C1X 60 EG IP44 7X30

B: B5 flange installation

1X: 1 commutator

60:1000rpm output voltage

EG: Electric brush type

IP44: Protection level

7X30: Shaft diameter 7mm, shaft length 30mm

Key questions and answers

Question 1: What are the maximum speed and maximum output voltage of the RE.0444N speed generator? What is the temperature drift index?

answer:

Maximum speed: 12000rpm

Maximum induced electromotive force: 600V

Electromotive force temperature drift: 0.005%/℃

Question 2: What are the installation methods and protection levels of this product? What is the standard version?

answer:

Installation method: B5 flange installation, B3 base installation

Protection level: standard IP44, optional IP55 (requires sealing cover)

Question 3: What are the differences in weight and wiring between the single commutator and double commutator versions?

answer:

Weight: Single commutator 1.8kg, double commutator 2.1kg

Wiring: One set of output from a single commutator; Dual commutators with two independent outputs (red+/white -, blue+/green -) can be used for redundant or differential signals.