Specification Sheet
17
To add RS-485 Digital Communications Port to Furnace model, add “COM” to model number before last letter in cat. no. – e.g., BF51748COMA-1
Thermo Scientific Lindberg/Blue M Moldatherm Box Furnaces
• Unique insulation and heating element
composites minimize outer surface
temperatures while maintaining uniform heat
distribution within the chamber
• Advanced engineering and specialized con-
struction techniques include variable density
insulation, double shell cabinets, long-life heating
elements and horizontal side swing doors
• Selectable self-tuning feature sets control
parameters for the thermal process
• PID control prevents temperature overshoot
• Main power ON/OFF switch on control panel
• Controlled heat-up rate eliminates thermal
shock to materials
• Quick heat-up and cool-down rates
• Adjustable high-limit over-temperature protection
• Simultaneous LED display of actual
temperature vs. setpoint (°C or °F)
• Advanced construction
• Advanced double wall minimizes exterior surface
temperatures for operator safety and energy
efficiency
• Side-hinge door for convenient operation and
full chamber access
• Long-life Type K thermocouple
• Air vent (1 in. dia., top) and air inlet (0.375 in.
dia., rear) for inert atmosphere exchange;
(Note: door is not gas-tight)
• Removable and replaceable Moldatherm hearth
plate supports load and prevents damage due
to spillage
• Energy efficient Moldatherm insulation with
embedded heating elements
• Safety door switch to interrupt power to heating
element when door is opened; protects heating
element and minimizes exposure to end-user
Versatile selection of chamber box furnaces in several popular chamber sizes to meet a variety of demanding
industrial and laboratory applications
Cat. No. Capacity Temp. Range
Interior Dimensions
(D x W x H)
Exterior Dimensions
(L x W x H) Control Electrical
Shipping
Weight Plug Type
BF51748A-1
1.99L
(0.07 cu. ft.)
100° to 1100°C
20.3 x 10.2 x 10.2cm
(4 x 8 x 4in.)
50.8 x 38.1 x 44.4cm
(20 x 15 x 17.5in.)
A/OTP
120V 50/60Hz
1800w;15A
25kg
(55 lb.)
BF51748C-1**
1.99L
(0.07 cu. ft.)
100° to 1100°C
20.3 x 10.2 x 10.2cm
(4 x 8 x 4in.)
50.8 x 38.1 x 44.4cm
(20 x 15 x 17.5in.)
A/OTP
208/240V 50/60Hz
1800w;7.5A
25kg
(55 lb.)
BF51848A-1
1.99L
(0.07 cu. ft.)
100° to 1100°C
20.3 x 10.2 x 10.2cm
(4 x 8 x 4in.)
50.8 x 38.1 x 44.4cm
(20x 15 x 17.5in.)
B/OTP
120V 50/60Hz
1800w;15A
25kg
(55 lb.)
BF51848C-1
1.99L
(0.07 cu. ft.)
100° to 1100°C
20.3 x 10.2 x 10.2cm
(4 x 8 x 4in.)
50.8 x 38.1 x 44.4cm
(20 x 15 x 17.5in.)
B/OTP
208/240V 50/60Hz
1800w;7.5A
25kg
(55 lb.)
BF51848KC-1
1.99L
(0.07 cu. ft.)
100° to 1100°C
20.3 x 10.2 x 10.2cm
(4 x 8 x 4in.)
50.8 x 38.1 x 44.4cm
(20 x 15 x 17.5in.)
B/OTP
208/240V 50/60Hz
1800w;7.5A
25kg
(55 lb.)
BF51766A-1
5.3L
(0.19 cu. ft.)
100° to 1100°C
22.9 x 15.2 x 15.2cm
(9 x 6 x 6in.)
53.3 x 43.1 x 54.6cm
(21 x 17 x 21.5in.)
A/OTP
120V 50/60Hz
1800w;15A
50kg
(110 lb.)
BF51766C-1
5.3L
(0.19 cu. ft.)
100° to 1100°C
22.9 x 15.2 x 15.2cm
(9 x 6 x 6in.)
53.3 x 43.1 x 54.6cm
(21 x 17 x 21.5in.)
A/OTP
208/240V 50/60Hz
1800w;7.5A
50kg
(110 lb.)
BF51766KC-1
5.3L
(0.19 cu. ft.)
100° to 1100°C
22.9 x 15.2 x 15.2cm
(9 x 6 x 6in.)
53.3 x 43.1 x 54.6cm
(21 x 17 x 21.5in.)
A/OTP
208/240V 50/60Hz
1800w;7.5A
50kg
(110 lb.)
BF51866A-1
5.3L
(0.19 cu. ft.)
100° to 1100°C
22.9 x 15.2 x 15.2cm
(9 x 6 x 6in.)
53.3 x 43.1 x 54.6cm
(21 x 17 x 21.5in.)
B/OTP
120V 50/60Hz
1800w;15A
50kg
(110 lb.)
BF51866C-1
5.3L
(0.19 cu. ft.)
100° to 1100°C
22.9 x 15.2 x 15.2cm
(9 x 6 x 6in.)
53.3 x 43.1 x 54.6cm
(21 x 17 x 21.5in.)
B/OTP
208/240V 50/60Hz
1800w;7.5A
50kg
(110 lb.)
BF51866KC-1
5.3L
(0.19 cu. ft.)
100° to 1100°C
22.9 x 15.2 x 15.2cm
(9 x 6 x 6in.)
53.3 x 43.1 x 54.6cm
(21 x 17 x 21.5in.)
B/OTP
208/240V 50/60Hz
1800w;7.5A
50kg
(110 lb.)
BF51794C-1
18.4L
(0.65 cu. ft.)
100° to 1100°C
35.6 x 22.9 x 22.9cm
(14 x 9 x 9in.)
65.4 x 53.3 x 66cm
(25.75 x 21 x 26in..)
A/OTP
208/240V 50/60Hz
3500w;14.6A
59kg
(130 lb.)
BF51894C-1
18.4L
(0.65 cu. ft.)
100° to 1100°C
35.6 x 22.9 x 22.9cm
(14 x 9 x 9in.)
65.4 x 53.3 x 66cm
(25.75 x 21 x 26in.)
B/OTP
208/240V 50/60Hz
3500w;14.6A
59kg
(130 lb.)
BF51728C-1**
42.5L
(1.5 cu. ft.)
100° to 1100°C
45.7 x 30.5 x 30.5cm
(18 x 12 x 12in.)
76.2 x 60.9 x 71.1cm
(30 x 24 x 28in.)
A/OTP
208/240V 50/60Hz
5600w;23.3A
84kg
(185 lb.)
no plug, no cable,
requires hardwiring
BF51728RHDC-1*
42.5L
(1.5 cu. ft.)
100° to 1100°C
45.7 x 30.5 x 30.5cm
(18 x 12 x 12in.)
76.2 x 60.9 x 71.1cm
(30 x 24 x 28in.)
A/OTP
208/240V 50/60Hz
5600w;23.3A
84kg
(185 lb.)
no plug, no cable,
requires hardwiring
BF51828C-1
42.5L
(1.5 cu. ft.)
100° to 1100°C
45.7 x 30.5 x 30.5cm
(18 x 12 x 12in.)
76.2 x 60.9 x 71.1cm
(30 x 24 x 28in.)
B/OTP
208/240V
50/60Hz;23.3A
84kg
(185 lb.)
no plug, no cable,
requires hardwiring
BF51828RHDC-1*
42.5L
(1.5 cu. ft.)
100° to 1100°C
45.7 x 30.5 x 30.5cm
(18 x 12 x 12in.)
76.2 x 60.9 x 71.1cm
(30 x 24 x 28in.)
B/OTP
208/240V
50/60Hz;23.3A
84kg
(185 lb.)
no plug, no cable,
requires hardwiring
* "RHD" designates right hand door - compared to regular model with left hand door
** No digital communications port option available
Warranty: 1 year (parts and labor); Certifications: UL
17
X BOX FURNACES
Model BF51794C-1 with standard left hand door
Controller choices, all with
over-temperature protection
• A, B temperature control
• See page 7 for control details