BENDER ISOMETER ® IRDH575 Insulation Monitoring Equipment

Climate grade DIN IEC 60721-3-3 (3K5)

Impact resistance performance during operation: 15g/11ms; During transportation: 40g/6ms (IEC 60068-2-27/29)

Vibration resistance performance during operation: 1g/10... 150Hz; During transportation: 2g/10... 150Hz (IEC 60068-2-6)

Installation method: Panel installation, hole size 138 × 90mm, installation distance ≥ 30mm

Wire terminal screw terminal, supporting rigid conductor 0.2... 4mm ², flexible conductor 0.2... 2.5mm ² (AWG 24... 12)

Protection level: Internal components IP30, terminals IP20, door mounted IP40, optional IP42 (panel sealing)

Weight ≤ 900 g

System configuration and ordering information

（1） Typical system configuration

Key considerations for configuring components in application scenarios

The main circuit monitoring and positioning IRDH575B1-435+EDS460+W series current transformer IT system requires two fuses for power supply

Control circuit monitoring and positioning: IRDH575B1-435+EDS461+8000 series current transformers. It is recommended to set the positioning current to 1... 2.5mA to avoid interference with the PLC

（2） Model and accessories

Model Monitoring Voltage Order Number Special Characteristics

IRDH575B1-435 AC/DC 20... 575V B91065500 Standard Low Voltage Type

IRDH575B1-4227 AC/DC 20... 150V B91065505 measures a voltage of 10V and adapts to the control circuit

IRDH575B2-435 AC/DC 340... 760V B91065503 Standard High Voltage Type

IRDH575B2-427 AC/DC 340... 575V B91065506 High Voltage Control Circuit Type

Accessory Name Model Order Number Function

IP42 panel sealing - B98060006 enhances protection level to IP42

IP65 transparent cover - B98060007 dustproof and waterproof, suitable for harsh environments

DIN rail adapter - B98060010 supports DIN rail installation

External measuring instrument 9620-1421 B986841 remote display insulation resistance