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Bosch Rexroth | R902091800

RA2-1/10

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The RA2-1/10 Amplifier Card/Module features a coil resistance at 20°C of 3.3 Ω and a hysteresis of ≤ 5%, making it highly reliable. Manufactured by Bosch Rexroth, this module supports hydraulic fluid temperature ranges from -40 to +100°C, a protection class rating of IP 65/69K/66, and a maximum solenoid current of 1.8A at 12V or 1.2A at 24V.

Technical Specifications

Coil Resistance At 20°c (cold)
3.3 Ω

Hydraulic Fluid Temperature Range
-40 to +100 °C

Hydraulic Fluid Viscosity Range
5 to 400 mm^2/s

Hysteresis
≤ 5%

Load Cycles
10 million

Max Coil Resistance (hot)
5.8 Ω

Maximum Coil Temperature
150 °C

Maximum Permitted Degree Of Contamination
Class 20/18/15 (ISO 4406)

Maximum Solenoid Current
1.8A (12V), 1.2A (24V)

Protection Class (din En 60529)
{'K4': 'IP 65', 'K40': 'IP 69K', 'C4': 'IP 66'}

Step Response (0 To 100% And 100 To 0%)
180 ms (with pS = 10 bar)

Supply Voltage
12V DC, 24V DC

Switch-on Duration
100%

Type
Analog Amplifier

Weight
0.84 kg

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