Immersion heaters for water heating in acidproof stainless steel with screw plug in brass

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.

Brass plug G1'' (without protection tubing)

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

Brass plug G1¼''

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

Brass plug G2''

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