Basic Monitoring - Current for two 3-phase mains, two neutrals, and current for up to 84 branch circuits, Modbus, 90 - 277VAC (L-N), 50A and / or 100ACTs purchased separately (see E31CT) ribbon cables purchased separately (see CBL).
Basic Monitoring - Current for two 3-phase mains, two neutrals, and current for up to 84 branch circuits, Modbus, 90 - 277VAC (L-N), 50A and / or 100ACTs purchased separately (see E31CT) ribbon cables purchased separately (see CBL).
Key Features
E31A kits
Features advanced functionality monitor voltage, current, power and energy consumption of each circuit in a panelboard including the main breaker. The accumulated information can be transmitted through the communications interface. Data updates occur roughly every two seconds to provide timely preventative maintenance information. As any circuit approaches the user-configured thresholds, alarm indicators are triggered, preventing costly downtime from overloaded circuits or failed loads.
E31B kits
Features intermediate functionality monitor voltage, current, power and energy consumption in the mains along with voltage and current in the branches in a panelboard. The accumulated information can be transmitted through the communications interface. Data updates occur roughly every two seconds to provide timely preventative maintenance information. As any circuit approaches the user-configured thresholds, alarm indicators are triggered, preventing costly downtime from overloaded circuits or failed loads.
E31C kits
Features basic functionality monitor current in the mains and the branches in a panelboard. The accumulated information can be transmitted through the communications interface. Data updates occur roughly every two seconds to provide timely preventative maintenance information. As any circuit approaches the user-configured thresholds, alarm indicators are triggered, preventing costly downtime from overloaded circuits or failed loads.
Inputs | |
Input Power | 90 to 277 VAC, 50/60 Hz |
Accuracy | |
Power/Energy | IEC 62053-21 Class 1, ANSI C12.1-2008 |
Voltage | ±0.5% of reading 90 to 277 V line-to-neutral |
Operation | |
Sampling Frequency | 2560 Hz |
Update Rate | 1.8 Seconds |
Overload Capability | 22 kAIC |
Network Communications | |
Type | Modbus RTU |
Connection | DIP switch-selectable 2-wire or 4-wire, RS-485 |
Address | DIP switch-selectable address 1 to 247 (pairs of 2) |
Baud Rate | DIP switch-selectable 9600, 19200, 38400 |
Parity | DIP switch-selectable NONE, ODD, EVEN |
Communication Format | 8 data-bits, 1 start-bit, 1 stop-bit |
Mechanical | |
Ribbon Cable Support | 2 each 4' (0.9 m) flat ribbon cables ship standard; up to 20' (6 m) available |
Environmental | |
Temperature | Operating: 32 to 140°F (0 to 60°C) Storage: -40 to 158°F (-40 to 70°C) |
Monitoring at Mains | E31A | E31B | E31C |
---|---|---|---|
Current per phase | |||
Max. current per phase | |||
Current demand per phase | |||
Max. current demand per phase | |||
Energy (kWh) per phase | |||
Real Power (kW) per phase | |||
Apparent Power (kVA) | |||
Power factor total * | |||
Power factor per phase | |||
Voltage, L-L and average | |||
Voltage, L-N and average | |||
Voltage, L-N and per phase | |||
Frequency (phase A) | |||
Monitoring at Branch Circuit | |||
Current | |||
Max. current | |||
Current demand | |||
Max. current demand | |||
Real power (kW) | |||
Real power (kW) demand | |||
Real power (kW) demand max. | |||
Energy (kWh) per circuit | |||
Power factor | |||
Apparent Power (kVA) | |||
Modbus Alarms | |||
Voltage over/under | |||
Current over/under |
* Based on a 3-phase breaker rotation.
Inputs | |
Input Power | 90 to 277 VAC, 50/60 Hz |
Accuracy | |
Power/Energy | IEC 62053-21 Class 1, ANSI C12.1-2008 |
Voltage | ±0.5% of reading 90 to 277 V line-to-neutral |
Operation | |
Sampling Frequency | 2560 Hz |
Update Rate | 1.8 Seconds |
Overload Capability | 22 kAIC |
Network Communications | |
Type | Modbus RTU |
Connection | DIP switch-selectable 2-wire or 4-wire, RS-485 |
Address | DIP switch-selectable address 1 to 247 (pairs of 2) |
Baud Rate | DIP switch-selectable 9600, 19200, 38400 |
Parity | DIP switch-selectable NONE, ODD, EVEN |
Communication Format | 8 data-bits, 1 start-bit, 1 stop-bit |
Mechanical | |
Ribbon Cable Support | 2 each 4' (0.9 m) flat ribbon cables ship standard; up to 20' (6 m) available |
Environmental | |
Temperature | Operating: 32 to 140°F (0 to 60°C) Storage: -40 to 158°F (-40 to 70°C) |
Monitoring at Mains | E31A | E31B | E31C |
---|---|---|---|
Current per phase | |||
Max. current per phase | |||
Current demand per phase | |||
Max. current demand per phase | |||
Energy (kWh) per phase | |||
Real Power (kW) per phase | |||
Apparent Power (kVA) | |||
Power factor total * | |||
Power factor per phase | |||
Voltage, L-L and average | |||
Voltage, L-N and average | |||
Voltage, L-N and per phase | |||
Frequency (phase A) | |||
Monitoring at Branch Circuit | |||
Current | |||
Max. current | |||
Current demand | |||
Max. current demand | |||
Real power (kW) | |||
Real power (kW) demand | |||
Real power (kW) demand max. | |||
Energy (kWh) per circuit | |||
Power factor | |||
Apparent Power (kVA) | |||
Modbus Alarms | |||
Voltage over/under | |||
Current over/under |
* Based on a 3-phase breaker rotation.