

The SE-601 series monitor is a microprocessor-based, ground-fault relay for ungrounded dc systems ranging from industrial 24 V dc control circuits to 1000 V dc solar and transportation systems. It provides sensitive ground-fault protection without the problems associated with nuisance tripping. Ground-fault current is sensed using an SE-GRM series ground-reference module—a resistor network that limits ground-fault current to 25 mA. Its output relay can operate in the fail-safe or non-fail-safe mode for undervoltage or shunt-trip applications. The SE-601 relay can be DIN-rail, surface, or panel mounted.
- Adjustable pickup (1–20 mA)
- Adjustable time delay (50–2.5 ms)
- Output contacts
- Analog outputs (0–5 V)
- Non-volatile trip memory
- Selectable contact operating mode
- Microprocessor-based
- Ten settings provide a wide range of low-level protection
- Adjustable trip delay allows quick protection or delayed response
- Form A and Form B output contacts for operation of separate annunciation and trip circuits
- Provides means for connecting to a meter (PGA-0500) or a control system
- Retains trip state when de-energized to simplify troubleshooting
- Selectable fail-safe or non-fail-safe operating modes allow connection to shunt or undervoltage breaker coil
- No calibration required-saves on maintenance cost
SE-601 Parts
Filters
Part Number | Actions | Supply Voltage AC | Supply Voltage DC | Relay Contacts Config | Analog Output Voltage (V) | IEEE Device Numbers | Relay Contacts Operation | Weight (kg) | Auto Manual Reset | Conformally Coated | GF Trip Level A | GF Trip Time (s) | Reset Type | System Type | Test Button |
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Part Number | Actions | Supply Voltage AC | Supply Voltage DC | Relay Contacts Config | Analog Output Voltage (V) | IEEE Device Numbers | Relay Contacts Operation | Weight (kg) | Auto Manual Reset | Conformally Coated | GF Trip Level A | GF Trip Time (s) | Reset Type | System Type | Test Button | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
12 - 30 | 1 Form A (N.O.); 1 Form B (N.C.) | 0 - 5 V | 76G | Fail-safe / Non Fail-safe | 0 Kg (kilogram) | Latching; Autoreset | Optional | 0.001 - 0.020 | 0.05 - 2.5 | Front-panel switch/Remote N.O. Contact | Ungrounded DC | Front-panel switch | ||||
0 Kg (kilogram) | ||||||||||||||||
40 - 55 | 1 Form A (N.O.); 1 Form B (N.C.) | 0 - 5 V | 76G | Fail-safe / Non Fail-safe | 0 Kg (kilogram) | Latching; Autoreset | Optional | 0.001 - 0.020 | 0.05 - 2.5 | Front-panel switch/Remote N.O. Contact | Ungrounded DC | Front-panel switch | ||||
40 - 55 | 1 Form A (N.O.); 1 Form B (N.C.) | 0 - 5 V | Fail-safe / Non Fail-safe | 0 Kg (kilogram) | Latching; Autoreset | Yes | 0.001 - 0.020 | 0.05 - 2.5 | Front-panel switch/Remote N.O. Contact | Ungrounded DC | Front-panel switch | |||||
120 - 240 | 100 - 240 | 1 Form A (N.O.); 1 Form B (N.C.) | 0 - 5 V | 76G | Fail-safe / Non Fail-safe | 0 Kg (kilogram) | Latching; Autoreset | Optional | 0.001 - 0.020 | 0.05 - 2.5 | Front-panel switch/Remote N.O. Contact | Ungrounded DC | Front-panel switch | |||
120 - 240 | 100 - 240 | 1 Form A (N.O.); 1 Form B (N.C.) | 0 - 5 V | 76G | Fail-safe / Non Fail-safe | 0 Kg (kilogram) | Latching; Autoreset | Yes | 0.001 - 0.020 | 0.05 - 2.5 | ||||||
0 Kg (kilogram) |
SE-601 Applications
- For ungrounded dc systems ranging from 24 V dc control circuits to 1000 V dc solar and transportation systems
Series: SE-601 Resources

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