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41-973.5R
PMG-13
1 Polar Alarm Unit (1)
1 Polar Ground Unit (5)
1 Polar Trip Unit (3)
1 Indicating Contactor
Switch
1 Set of Potential Divider
Resistors
1 Tapped Transformer
(ac Relay Only)
1 Blocking Rectifier
2 Remote Trip Resistors
3-4 mfd Capacitors
(ac Relay)
2-4 mfd Capacitors
(dc Relay)
PMA
&
Function
PMD
Monitoring
Current
X
Source
Receives
Monitoring
Current
Trouble
X
Alarm
Transmits
†
X
Trip Signal
Receives
Trip Signal
Sensitive
Ground
X
Detection
Measures
Monitoring
Current
†
With external Resistors
2
PM-13
1 Polar Alarm Unit (1)
1 Polar Trip Unit (3)
1 Indicating Contactor
Switch
1 Set of Potential Divider
Resistors
1 Tapped Transformer
(ac Relay only)
1 Full-Wave Rectifier
(ac Relay only)
1 Blocking Rectifier
2 Remote Trip Resistors
1-4 mfd Capacitor
Table 1:
PMA-1
&
PMD-1
PM-13
PMG-13
X
X
X
X
†
X
X
X
Type PM Line of Relays For Pilot Wire Monitoring
PM-23
1 Polar Alarm Unit (2)
1 Polar Trip Unit (3)
1 Indicating Contactor
Switch (ICS)
1 Milliammeter, 5.0 mA
1 Set of Adjustable and
Fixed Resistors
2 Blocking Rectifiers
PM-3
1 Polar Trip Unit (3)
1 Resistor
1 Blocking Rectifier
1 Indicating Contactor
Switch (ICS)
PM-23
PM-2
X
X
X
X
X
X
†
†
X
X
X
X
X
X
X
X
And Transferred Tripping
PM-2
1 Polar Alarm Unit (2)
1 Milliammeter, 5.0 mA
1 Set of Adjustable
Resistors
1 Blocking Rectifier
PM-4
1 Blocking Rectifier
1 Set of Adjustable and
Fixed Resistors
PM-5
1 Polar Ground Unit (5)
2-4 mfd Capacitors
1 Fixed Resistor
PM-3
PM-4
PM-5
X
X
†
†
X
X
X
X
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