Digital Capacitor Switching Modules

Digital Capacitor Switching Modules

Features:-
  • Designed to allow operation and reversing of the rotating direction of three phase motors.
  • Offers a modern alternative to conventional electromechanical three phase reverser.
  • Provides isolation through very high immunity Opto-couplers.
  • Maximum current is 75 A,
  • Models for 2KW, 3KW, 5.5KW, 7.5KW motor under 480 VAC or 600 VAC to be driven at high switching frequencies while taking account of starting currents.
  • Built- in Interlocking Included.
  • DC and AC models available

Ordering Key

Switching Poles Switching Mode Rated operational voltage Control Voltage Motor Power rating
SR3PA‐ 2 Pole, SR3PD‐ 2 Pole R: Reversing 4: 48‐530VAC, 6: 48‐ 600VAC A:90‐280 VAC, D: 24VDC, 15% +20% 2.2KW, 3.0KW, 5.0KW, 7.5KW

Control Specifications

SR3PD SR3PA
Rated control input voltage 24 VDC 230VAC
Control Voltage Range 15‐32 VDC 90‐ 280 VAC
Maximum Input Current 10mA 15 mA
Pick up Voltage 15 VDC 90VAC
Maximum Reverse Voltage 32VDC N/A
Drop out voltage 1 VDC 10 VAC
Response Pick up time 5 ms 30 ms
Response Drop out time 15 ms 30 ms
Operational Frequency range N/A 47 ~ 63 Hz
LEDs Forward: Green, Reverse: Red Forward: Green, Reverse: Red

General Specifications

Operating temperature -25°C to 60°C -25°C to 60°C
Storage temperature -40°C to 100°C -40°C to 100°C
RoHS Yes Yes
Humidity 95% with no condensation@40 °C 95% with no condensation@40 °C
Critical Rise of off state voltage dv/dt V/μs @ Tjunc= 25°C and t=10ms 1000 V/μs 1000 V/μs
Weight 125 gms 125 gms