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relay-H550

Features: Suitable for indicating a ground fault condition on a generator set which is either locally or remotely grounded.Power - Operates on 24 VDC (nominal) control power - fully functional at voltages from 18-30 VDC.Direct connection - Suitable for direct connection to generator sets operating...

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relay-H550: Features: Suitable for indicating a ground fault condition on a generator set which is either locally or remotely grounded.Power - Operates on 24 VDC (nominal) control power - fully functional at vo...

relay-H550 Data Sheet

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Part Number:
relay-H550
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/4/24

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Product Details

Description



Features:

Suitable for indicating a ground fault condition on a generator set which is either locally or remotely grounded.

Power - Operates on 24 VDC (nominal) control power - fully functional at voltages from 18-30 VDC.

Direct connection - Suitable for direct connection to generator sets operating at voltages up to 600 VAC (line to line).
 
Ground fault current settings - 100-1200 A, in 10 discrete settings: 100, 150, 200, 250, 300, 450, 600, 750, 800, 1200 A.

Monitoring - Provides continuous monitoring of neutral-to-ground with LED indication for open connection.

Factory mounted controls - Available factorymounted and interconnected to Cummins Power Generation Detector™ series PowerCommand® controls.

Link reconnection - For use with either 3-pole (solid neutral or 4-pole (switched neutral) transfer switches.

Indicating lamps - For Relay on (green), ground fault current over setting (red), loss of ground connection (red).

Time delay settings - 0-1.0 seconds.

Circuit board - One-piece molded case fully potted.

Contacts - One set of form C output, rated 1100 VA, 250 VAC, 5 A continuous, 3 A breaking @ 240 VAC.

"Test" - Push-button.

"Reset" - Push-button.

Percent full scale metering output - 0-1 mA full scale.

Bonding jumper - Sized per NEC requirements.


Description

NFPA 70, the U.S. National Electrical Code (NEC) requires that services of 1000 amps and larger in capacity which operate at more than 150 volts from line-to-neutral must be provided with ground fault equipment. Generator sets of relay-H550 rated at 100 amps and larger which serve as emergency power must be provided with ground fault indication equipment. Health care facilities of relay-H550 that utilize ground fault protection equipment must be provided with a coordinated multi-level ground fault system.

Cummins Power Generation ground fault indication equipment of relay-H550 is designed for use in emergency/standby power systems, for indication of ground fault conditions during generator set operation.




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