Product Introduction
⚡ Product: REF601 CE446BB1NH
🏷️ Brand: ABB
🛡️ Product Type: Feeder Protection and Control Relay
The ABB REF601 CE446BB1NH is a feeder protection and control relay designed for medium-voltage distribution and industrial power systems. It provides protection, monitoring, measurement, and control functions within electrical switchgear applications.
🔌 The relay is part of the ABB Relion protection product family and is designed for applications such as feeder protection, circuit breaker control, and power system supervision. It supports integration into industrial electrical networks with communication functions depending on the selected configuration.
🏭 The REF601 is suitable for utility distribution systems, industrial plants, power stations, and retrofit projects requiring reliable protection and monitoring of medium-voltage feeders. Before installation, verify the exact CE446BB1NH configuration, auxiliary supply, wiring, communication settings, and protection parameters.
Product Datasheet
🔹 Model: REF601 CE446BB1NH
🔹 Brand: ABB
🔹 Product Type: Feeder Protection & Control Relay
🔹 Series: ABB Relion REF601
🔹 Application: Medium Voltage Feeder Protection
🔹 Protection Function: Overcurrent / Earth Fault Protection
🔹 Control Function: Circuit Breaker Control and Monitoring
🔹 Communication: Serial Communication, Configuration Dependent
🔹 Power Supply: 24–240 VAC/DC, Configuration Dependent
🔹 Mounting: Switchgear Panel / Protection Cabinet
🔹 Dimensions: Approx. 160 × 130 × 120 mm*
🔹 Weight: Approx. 1.0 kg*
🔹 Country of Origin: Sweden / Europe*
*Dimensions, weight, auxiliary supply range, communication options, and country of origin may vary according to hardware configuration. Verify the actual nameplate before installation.
Typical Applications
⚡ Medium-voltage power distribution
🏭 Industrial electrical systems
🔌 Switchgear protection panels
🏢 Utility feeder protection
⚙️ Transformer and motor feeder monitoring
🔄 Protection relay replacement and retrofit projects
Installation & Use
🛠️ Before installation, confirm the REF601 CE446BB1NH relay model, protection settings, CT wiring, auxiliary power supply, communication configuration, and switchgear compatibility.
🔌 Connect current transformer inputs, control wiring, auxiliary power, and communication cables according to the approved electrical design. After energizing, check relay self-diagnostics, event records, measurement values, protection status, and communication operation.
⚠️ Before returning the power system to service, perform protection-function verification, trip circuit checks, and commissioning tests according to the site maintenance procedure.
