Backer standard range of screw plug immersion/ insertion heaters in stock are suitable as heat sources for instance in domestic water heaters, calorifiers, electric boilers, tanks and industrial baths. They can be fitted with different accessories such as terminal box, thermostat, safety temperature limiter, tube and insulation for flow-through heater and socket key for assembly.
Type | Power W | Voltage V | Insertion length mm | Art.no. |
IU 21 | 1x250 + 1x750 | 230 | 320 | 3020 398 001 |
IU 22 | 1x500 + 1x1000 | 230 | 355 | 3020 398 002 |
IU 23 | 1x725 + 1x1225 | 230 | 435 | 3020 398 003 |
IU 24 | 1x1250 + 1x1750 | 230 | 435 | 3020 398 004 |
Type | Power W | Voltage V | Insertion length mm | Art.no. |
IU 25 | 1x500 + 1x500 | 230 | 160 | 3020 398 101 |
IU 26 | 1x500 + 1x1000 | 230 | 255 | 3020 398 102 |
IU 27 | 1x670 + 1x1330 | 230 | 255 | 3020 398 103 |
IU 29 | 1x1000 + 1x2000 | 230 | 380 | 3020 398 104 |
Type | Power W | Voltage V | Insertion length mm | Art.no. |
IU 31R | 1500 | 230/400 | 180 | 2520 391 501 |
IU 3R | 2000 | 230/400 | 260 | 2520 391 502 |
IU 34R | 3000 | 230/400 | 280 | 2520 548 001 |
IU 36R | 4500 | 230/400 | 390 | 2520 548 002 |
IU 39R | 6000 | 230/400 | 390 | 2520 548 003 |
IU311R | 9000 | 3x400 | 390 | 2520 548 004 |
IU 3R | 9000 | 3x400 | 755 | 2520 548 005 |
IU 3R | 12000 | 3x400 | 750 | 2520 387 504 |
IR 3R | 15000 | 3x400 | 900 | 2520 387 505 |
IR 315R | 15000 | 3x400 | 1260 | 2530 397 706 |
IU 3R | 20000 | 3x400 | 900 | 2520 387 506 |
IU 3R | 23300 | 3x400 | 900 | 2520 387 507 |
Type | Power W | Voltage V | Insertion length mm | Art.no. |
IU 611R | 9000 | 230/400 | 415 | 2520 539 303 |
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