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Embedded heating flange unit

Summary

Embedded electrical heating flange unit of R, SE series (only for OKC 300–1000 NTR, NTRR/1MPa a OKCE 400–1000 S/1MPa)
REU 18–2,5, RDU 18–2,5, RDU 18–3, RDU 18–3,8, RDU 18–5, RDU 18–6, RDW 18–7,5, RDW 18–10, RSW 18–12, RSW 18–15, SE 377, SE 378

Character

Device used for electric heating of hot utility water designed for fitting into the flanged manhole of OKC NTR (OKCE) x/1MPa heaters. The heating unit is equipped with heating elements and operating and safety thermostat with the temperature range of hot utility water 0–77 °C.

The REU, RDU, RDW and RSW types with fixed output 2.5–15 kW for OKC 300–500 NTR(NTRR)/1MPa and OKCE 400–500/1MPa water heaters. These units may be used even for OKC 750–1000 NTR(NTRR)/1MPa and OKCE 750–1000/1MPa water heaters in case you use the adaptor flange 225/150

The SE 377 type with variable output within the range 8–11–16 kW and SE 378 with variable output within the range 9.5–14–19 kW are designed only for heaters with volumes of 750 and 1000 litres.

Technical data

TypeRDU 18–2,5RDU 18–2,5RDU 18–3RDU 18–3,8RDU 18–5RDU 18–6
Output [kW] 2,5 2,5 3 3,8 5 6
Supply 1 PE-N AC 230 V/50 Hz 3 PE-N AC 400 V/50 Hz 3 PE-N AC 400 V/50 Hz 3 PE-N AC 400 V/50 Hz 3 PE-N AC 400 V/50 Hz 3 PE-N AC 400 V/50 Hz
Heating element lenght [mm] 450 450 450 450 450 450
Electric protection category IP 24 IP 24 IP 24 IP 24 IP 24 IP 24
TypeRDW 18–7,5RDW 18–10RSW 18–12RSW 18–15SE 377*SE 378*
Output [kW] 7,5 10 12 15 8,0/11/16 9,5/14/19
Supply 3 PE-N AC 400 V/50 Hz 3 PE-N AC 400 V/50 Hz 3 PE-N AC 400 V/50 Hz 3 PE-N AC 400 V/50 Hz 3 PE-N AC 400 V/50 Hz 3 PE-N AC 400 V/50 Hz
Heating element lenght [mm] 450 450 530 630 610 750
Electric protection category IP 24 IP 24 IP 24 IP 24 IP 24 IP 24

Only for water heaters 750 l and 1,000 l.

Download

Actual page from our catalogue (PDF) – assembly scheme etc.