Electric Power Generation

Riggs Cat

MX350 Controller

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Specification Summary

Rating Range
Switch Dependent
Transfer Type
Application Dependent
Switch Type
Application Dependent
Source Sensing
120 - 690 VAC +/- 1% of nominal voltage (+/- .05 Hz, +/-.5 A)
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Controller Specifications

Source Sensing
120 - 690 VAC +/- 1% of nominal voltage (+/- .05 Hz, +/-.5 A)
Control Power
120 VAC
Communications Interface - Optional
Serial RS-485 upt to 115.2 Kbps or TCP/IP (10/100 base-T)
Undervoltage Dropout for Source 1 and Source 2
75-99% of nominal
Undervoltage Restore for Source 1 and Source 2
85-100% of nominal
Underfrequency Dropout for Source 1 and Source 2
45 - 59.9 Hz
Underfrequency Restore for Source 1 and Source 2
45 - 59.5 Hz
Overvoltage Dropout for Source 1 and Source 2
105 - 110% of nominal
Overvoltage Restore for Source 1 and Source 2
103 - 108% of nominal
Overfrequency Dropout for Source 1 and Source 2
50.1 - 63 Hz
Overfrequency Restore for Source 1 and Source 2
50 - 62.9 Hz
Voltage Unbalance on Dropout for Source 1 and Source 2
5 to 20% of nominal
Voltage Unbalance for Restore for Source 1 and Source 2
4 to 19% of nominal
Load Control Relay Contacts (1)
rated for 10A @ 24VDC or 120VAC
Load Control Relay Contacts (2)
0-259 minutes
Delay for Engine Cool Down (U)
0-60 minutes
Delay Transfer to Nonpreferred Source (W)
0-5 minutes
Delay NeutralTransition Time Delays (DT,DW)
0-10 minutes
Storage Temperature
(-40˚C - 90˚C )
Operating Temperature Ambient
(-20˚C to 50˚C)

Technical Summary

Rating Range
Switch Dependent
Transfer Type
Application Dependent
Switch Type
Application Dependent
Source Sensing
120 - 690 VAC +/- 1% of nominal voltage (+/- .05 Hz, +/-.5 A)
Control Power
120 VAC
Communications Interface - Optional
Serial RS-485 upt to 115.2 Kbps or TCP/IP (10/100 base-T)
Undervoltage Dropout for Source 1 and Source 2
75-99% of nominal
Undervoltage Restore for Source 1 and Source 2
85-100% of nominal
Underfrequency Dropout for Source 1 and Source 2
45 - 59.9 Hz
Underfrequency Restore for Source 1 and Source 2
45 - 59.5 Hz
Overvoltage Dropout for Source 1 and Source 2
105 - 110% of nominal
Overvoltage Restore for Source 1 and Source 2
103 - 108% of nominal
Overfrequency Dropout for Source 1 and Source 2
50.1 - 63 Hz
Overfrequency Restore for Source 1 and Source 2
50 - 62.9 Hz
Voltage Unbalance on Dropout for Source 1 and Source 2
5 to 20% of nominal
Voltage Unbalance for Restore for Source 1 and Source 2
4 to 19% of nominal
Load Control Relay Contacts (1)
rated for 10A @ 24VDC or 120VAC
Load Control Relay Contacts (2)
0-259 minutes
Delay for Engine Cool Down (U)
0-60 minutes
Delay Transfer to Nonpreferred Source (W)
0-5 minutes
Delay NeutralTransition Time Delays (DT,DW)
0-10 minutes
Storage Temperature
(-40˚C - 90˚C )
Operating Temperature Ambient
(-20˚C to 50˚C)
Rating Range
Switch Dependent
Transfer Type
Application Dependent
Switch Type
Application Dependent