Schneider RH99M residual current relay 0.03/30A 0/4.5 s 240 Vac 56173

RH99M is a differential protection relay for DIN rail mounting. It protects against direct or indirect contacts, fire hazards and motors. It measures the differential current in an electrical system through the associated toroid.

 

Triggers the associated circuit breaker when the set residual operating current is exceeded. Operating voltage is between 220 VAC and 240 VAC at 50/60 Hz. Current sensitivity is selectable with 9 thresholds from 30 mA to 30 A. Delay is selectable with 9 settings from instantaneous to 4.5 s.

 

Requires local manual reset after fault clearance. Monitored distribution system voltage is up to 1000 VAC at 50/60/400 Hz. It is installed on a DIN rail inside a switchboard, and the degree of protection is IP40. It must be associated with a Schneider Electric compatible toroid.

 

Features:

• Current sensor compatibility: VigiPacT TOA differential current sensor - VigiPacT A differential current sensor - VigiPacT L differential current sensor
• Rated impulse withstand voltage: 8 kV
• Test function: Remote test
• Monitoring: Electronics (continuous) - Power supply (continuous) - Relay/sensor connection (continuous)
• Measurement type: Internal measurement of ground fault current, range: 80...100%
• Inviolability settings: Protected with sealable panel
• IP degree of protection: IP40 on front side - IP30 on side parts - IP20 on connection terminals
• IK degree of protection: IK07
• Overvoltage category: IV
• Protection class against electric shock: Class II
• Relative humidity: 95 % at 55 °C
• Pollution degree: 3
• Operating ambient temperature: -35/+70 °C
• Storage temperature: -55/+85 °C