Description
BENDER GMBH CO KG
A-ISOMETER
SERIE 260
IRDH 265-4
INSULATION MONITORING DEVICE
ART.NO.: B91068001
SOFTWARE VERSION: V 2.6-4
RATED VOLTAGE: UN = 3AC/AC50…400HZ 0…690V/DC 0…500V
SUPPLY VOLTAGE: US = AC 50…60 HZ 230 V
RESPONSE VALUE: : RAN1 = 10…990 ΚΩ / RAN2 = 10…990 ΚΩ
POWER CONSUMPTION: 6 VA
RELAY CONTACTS: AC 250 V / 5A
DATA SHEET: 1.5 / 10.1(E)
ACCESSORIES: BENDER TYPE: AGH 204 S-4, AGH 520 S, AGH 150 W-4
The Bender IRDH 265-4 (B91068001) is an A-Isometer insulation monitoring device from the Series 260 range, running software version V2.6-4. It forms part of the control and monitoring equipment for shipboard electrical networks rated AC 0-690 V at 50-400 Hz, including three-phase, or DC 0-500 V, where it monitors insulation resistance. Two response values, each with a range of 10 to 990 kΩ, are paired with relay contacts rated AC 250 V / 5 A. The unit draws 6 VA from a 230 V AC supply at 50-60 Hz and is offered in used condition.
Key Features
✓ Series 260 A-Isometer, software version V2.6-4
✓ Rated voltage AC 0-690 V (50-400 Hz) or DC 0-500 V
✓ Two response values, 10-990 kΩ each
✓ Relay contacts rated AC 250 V / 5 A
✓ 230 V AC supply, 6 VA power consumption
Marine Applications
✓ Insulation monitoring on main switchboard networks
✓ Insulation monitoring on DC distribution up to 500 V
✓ Emergency switchboard insulation watch
✓ Alarm signalling to the engine control room via relay contacts
Technical Support
Prota Marine provides technical support, repair and onboard installation for the insulation monitoring device and the wider marine control system. Fault diagnosis covers the device and its connection to the switchboard network, and commissioning support is available once it is back in service.



