GL40

Electronic motor protection relays

GL series motor protection relays incorporate built-in CTs (current transformers) for ease of wiring and installation. All protection settings are made from front face of the protection relay.

• Reset mode: Manual or remote
• Trip classes (IEC 947-4-1): 12 - 20 - 30
• Maximum motor nominal voltage: 1000 VAC
• Thermal memory / overload trip: Yes / from 1.1 x IB
• Trip classes (IEC 947-4-1): 5 - 10 - 15 - 20 - 25 - 30 - 35
• Phase imbalance protection: Over 40%. Tripping time <3 sec
• Standards conformity: IEC 255, IEC 947, IEC 801, EN50081-2
• PTC min/max (cold) - average trip: 25Ω/1500Ω - 3600Ω/1800Ω
• Control voltage: 230 VAC (115 VAC and 24 VAC/DC available on request)
• Phase sequence protection: Selectable ON - OFF (actuate during motor start-up)