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Nabertherm Muffle Furnace LT 5/12/B510, 5 l, Tmax 1,200 °C, Lift Door, L-055H2AL

Product information "Nabertherm Muffle Furnace LT 5/12/B510, 5 l, Tmax 1,200 °C, Lift Door, L-055H2AL"

The Nabertherm LT 5/12 is the lift door version of the 5-litre size for Tmax 1,200 °C. The hot side of the door remains turned away from the operator, and with the lift door open, 205 mm are added to the external dimensions. Where this is more important during loading than using the door as a shelf, this is the appropriate design.

Construction, heating and insulation

The usable space measures 205 x 170 x 130 mm internally, externally the furnace is 385 x 390 x 460 mm, with 205 mm added when the lift door is open. The housing is double-walled, rear-ventilated and made of textured stainless steel sheet. Heating is provided from two sides via ceramic heating plates with integrated heating wire, and the furnace is insulated exclusively with material without classification under the CLP Regulation (EG) Nr. 1272/2008, meaning without aluminium silicate wool (RCF fibre). The empty, closed furnace takes approximately 59 minutes to reach Tmax minus 100 K (230 V 1/N/PE or 400 V 3/N/PE), and the weight is 27 kg.

Controller and thermocouple

Control is handled via the B510 touch controller with 5 programs of 4 segments each, and the heating operates quietly via solid-state relays. NTLog Basic logs process data on a USB flash drive. A type S thermocouple is installed for Tmax 1,200 °C, and at working temperatures above 800 °C, the temperature uniformity in the empty usable space with the inlet air slider closed is +/-5 K according to DIN 17052-1.

Lift door and safety

With the lift door, the hot side remains turned away from the operator, an adjustable air inlet is located in the door, and the exhaust air discharges through the rear wall. For additional over-temperature protection, an adjustable temperature limiter with an adjustable cut-off temperature can be ordered as an option.

Selection guide for door type and temperature class

Those who prefer to use the door as a shelf rather than lifting it will find the flap door variant with the same usable space and the same temperature class in the L 5/12 (item no. L-055K2AL). If the lower temperature class is sufficient, this size is also available with Tmax 1,100 °C, as the L 5/11 with flap door (item no. L-055K1AL) or as the LT 5/11 with lift door on request.

Typical applications

The L/LT series is intended for use in laboratories and research. With the LT 5/12, the lift door design is added, which is suitable when the hot side should remain facing away from the operator during loading.

  • Laboratory workstations requiring Tmax 1,200 °C
  • Applications where the lift door design is preferred

Technical details

Manufacturer model designationLT 5/12
Tmax1,200 °C
Working volume5 l
Internal dimensions W x D x H205 x 170 x 130 mm
External dimensions W x D x H385 x 390 x 460 mm (plus 205 mm with lift door open)
Connected load2.6 kW, single-phase
Weight27 kg
Heating time to Tmax -100 K59 min (empty, closed furnace, 230 V 1/N/PE or 400 V 3/N/PE)
HeatingTwo sides, ceramic heating plates
Temperature uniformity+/-5 K according to DIN 17052-1 (from 800 °C, empty usable space)
ThermocoupleType S
ControlB510, touch, 5 programs with 4 segments each
DoorLift door
Housingdouble-walled, rear-ventilated, textured stainless steel sheet
Insulation materialwithout CLP classification (EG) Nr. 1272/2008, no RCF fibre

Other models in the series

The table shows all models of the L/LT series with Tmax 1,200 °C and lift door, sorted by working volume:

ModelVolumeTmaxDoor
LT 1/12 (on request)1 l1,200 °CLift door
LT 3/12 (on request)3 l1,200 °CLift door
LT 5/12 (this page)5 l1,200 °CLift door
LT 9/12 (on request)9 l1,200 °CLift door
LT 15/12 (on request)15 l1,200 °CLift door
LT 24/12 (on request)24 l1,200 °CLift door
LT 40/12 (on request)40 l1,200 °CLift door
LT 60/12 (on request)60 l1,200 °CLift door

Scope of delivery

  • 1x Nabertherm muffle furnace LT 5/12 with controller B510

Regulatory information

The device is an electrical appliance within the meaning of the German Electrical and Electronic Equipment Act (ElektroG). The WEEE registration number of the manufacturer Nabertherm GmbH is DE 31598342. Information on the return of old appliances can be found on our page Environment and disposal.

Individual requirements and procurement service

For the LT 5/12, the following can additionally be ordered from the factory: an exhaust chimney, optionally with fan or catalytic converter, an adjustable temperature limiter with adjustable cut-off temperature, a protective gas connection for purging with non-combustible process gases, a manual or automatic gas supply system, a thermocouple lead-through in the rear wall or furnace door, the VCD software package for process control and documentation, and a charging rack with multiple loading levels, usable up to 800 °C, 2 to 3.5 kg per level depending on the model. LT Laborhandel clarifies which option is suitable in a personal consultation.