ROTKAPPE immersion heaters with ABS system
- Prevents overheating
- Prevents burning
- Thermal protection of the immersion heater
ROTKAPPE safety immersion heaters with anti-burn system minimise possible thermal damage to plants and tanks which can occur with a partial or a complete loss of liquid.
ROTKAPPE safety immersion heaters with Anti-Burn System can be in-stalled either vertically or horizon-tally in tanks and other plants. This flexibility simplifies the planning and installation of electrical immersion heaters to meet a wide range of requirements for such applications. Please note that it is still necessary to install the normal overheating and dry-running protection devices in plants and tanks with electrical heating systems, even when using ROTKAPPE immersion heaters with Anti-Burn System.
The integrated anti-burn system reacts in case of an exaggerated temperature increase of the heating tube and switches off the heater.
1- or 2-phase connection
The integrated Anti-Burn System reacts to un-permissibly high immersion tube temperatures and switches off the heater. The heater remains off until the safety circuit is reset manually. This can be done only if the other safety devices are operating correctly and the tank and the heater are in good condition. The heater cartridges are available for all rated voltages up to 400 V and with rated powers of up to 6.0 kW.
3- phase connection
The integrated Anti-Burn System is tripped if the immersion tube temperature becomes too high and switches off the heater with the aid of our differential current monitor DSW 3/2 and a power relay. The heater then remains switched off until the safety circuits in the immersion heater and on the differential current monitor are reset manually. A prerequisite for this is that all other safety devices are functioning correctly and that the tank and the heater are in good condition. The Anti-Burn System can be in-stalled in all three-phase immersion heaters with rated voltages of up to 400 V and a current consumption of 1,8 to 16 A.
Differential current monitor DSW 3/2 (provided with ABS system)
The differential current monitor DSW 3/2 monitors the currents in the individual phases (L1, L2, L3) of a three-phase mains supply. When the limit value set for power consumption imbalance is exceeded, the power contactor is switched off via the relay contact. The limit value recommended for power consumption imbalance is 5.0 %. The effective process parameters (e.g. Phase current) are indicated on the display. If values exceed or fall below the set limits, the contact switches and the display shows the respective error message. The DSW 3/2 differential current monitor reacts in the following situations:
- Overload protection (for current consumption monitoring)
- Current phase failure (if the temperature limiter in the immersion heater is activated)
- Current phase failure (if the heating coil fails or in case of cable breakage)
Accessories and Options
DIFFERENTIAL CURRENT MONITOR DSW3
Essential for three-phases heaters with ABS system
MOUNTING WRENCH SB FOR BC CASING
MOUNTING SLEEVE EM FOR BC CASING
For space-saving fitting in supports or tank cross-beams drill-hole diameter from 87 to 90 mm
Material : EPDM
THB SUPPORT FOR ABS
Support THB and holding sleeve HM to fix immersion heaters with ABS. Material : PP
TERMINAL CASING BC
Material red terminal casing : PP, ref. BC
Material white terminal casing : PVDF, ref. BC/L
HB SUPPORT FOR BC CASING
Support screwed onto the tank rim, easy fitment of the terminal casing
For heaters with a maximum tube lengthof 800 mm
Material : PP
HOLDING SLEEVE HM FOR BC CASING
To fix the heater in the tank cross-beams, recommended for liquids with high temperature or with highly concentrated steam – drill-hole diameter from 70 to 76 mm, Material : EPDM