Bitzer SE-E3

ST-120-3
Protection devices for screw compressors of HS.-, CS.-, OS.-, VSK series
Translation of the original document
English....................................................................................................................................................... 2
Schutzgeräte für Schraubenverdichter der HS.-, CS.-, OS.-, und VSK-Serie
Originaldokument
Deutsch ..................................................................................................................................................... 14
Dispositifs de protection pour des compresseurs à vis des séries HS.-, CS.-, OS.-, et VSK
Traduction du document original
Français..................................................................................................................................................... 25
SE-E1
SE-E3
SE-B2
OFC
Electrically skilled installer
Elektrisch unterwiesener Monteur
Monteur habilité

Bitzer SE-E3 Specifications

General

Brand	Bitzer
Model	SE-E3
Category	Protection Device
Language	English

Summary

Introduction to Compressor Protection Devices

Safety Guidelines for Compressor Protection Devices

Authorized Staff for System Maintenance

Details the required qualifications and training for personnel working on protection devices and refrigeration systems.

Residual Risks in Compressor Systems

Highlights unavoidable residual risks of compressors and electronic accessories, emphasizing the importance of document review.

Safety References and Hazard Prevention

Provides instructions to prevent hazards, including different levels of risk warnings for equipment and personnel.

Overview and Technical Data of Protection Devices

Detailed Technical Data for Protection Devices

Presents comprehensive technical specifications for various protection devices, including voltage, frequency, and temperature ratings.

SE-E1 and SE-E3 Protection Devices

Monitoring Functions of SE-E1 and SE-E3

Explains the monitoring capabilities for temperature, rotation direction, and phase failure for SE-E1 and SE-E3 devices.

SE-B2 Oil Flow Monitoring Device

Monitoring Functions of SE-B2

Details the SE-B2's role in monitoring oil flow, intended for semi-hermetic and open-drive screw compressors.

OFC Oil Flow Control Device

OFC Functions and Control Delay

Describes the OFC as an alternative for oil flow monitoring, detailing its control delay during start and operation.

Electrical Connection Diagrams

CS Series: SE-E1 SE-E3 Connections

Illustrates the electrical connection of SE-E1/SE-E3 protection devices for CS series compressors.

HS.53-HS.74: SE-E1 SE-E3 with SE-B2

Shows the connection of SE-E1/SE-E3 with SE-B2 for HS.53 to HS.74 screw compressors.

HS.53-HS.74: SE-E1 SE-E3 with OFC

Depicts the electrical connection of SE-E1/SE-E3 with OFC for HS.53 to HS.74 screw compressors.

HS.85: SE-E1 SE-E3 with Two SE-B2

Details the connection of SE-E1/SE-E3 with two SE-B2 units for HS.85 screw compressors.

HS.85: SE-E1 SE-E3 with SE-B2 and OFC

Illustrates the connection of SE-E1/SE-E3 with SE-B2 and OFC for HS.85 screw compressors.