Types KR and KU, Single pole control thermostat, standard differential and reduced differential (Commercial type)
Housing dimensions: 79 x 53 x 36 mm (without terminals)
Bulb and capillary: copper for temperature ranges up to 50°C (122°F), stainless steel over, capillary length 1500 mm or 3000 mm. Capillary minimum bending radius 5mm.
Temperature sensing element: liquid filled bulb and capillary.
Terminals: 6.35 x 0.8 quick connect terminals (M4 screws also available on request),
Adjustment: Dia. 6 mm shaft with 4.6 mm flat, (other lengths or fixed setting available on request).
Mounting: Front bracket with 2 xM4 threads, 28 mm distance
Rating: 15A (1/4 HP) 250VAC, 15A 400V res. KU type cannot be used on 400V
Contacts: SPDT (snap action contact)
Electrical life: >500,000 cycles at nominal rating |
|
 |
Main references
| References with standard differential |
References with reduced differential |
Temperature range (°C/°F) |
Capillary length (mm) |
Bulb diameter (mm) |
Bulb length (mm) |
KR: Standard Differential (°C/°F) |
KU: Reduced Differential (°C/°F) |
Max temperature on bulb (°C/°F) |
| KRA-250252200 |
KUA-250252200 |
-25+25°C
(-15+80°F) |
1500 |
6.4 |
152 |
3±2°C
(5.5±3.6 °F) |
2±1°C
(3.6±1.8 °F) |
50°C
(120°F) |
| KRA-1001552000 |
KUA-1001552000 |
-10+15°C
(15-60°F) |
1500 |
6.4 |
152 |
3±2°C
(5.5±3.6 °F) |
2±1°C
(3.6±1.8 °F) |
50°C
(120°F) |
| KRA0000502000 |
KUA0000502000 |
0-50°C
(32-120°F) |
1500 |
6.4 |
152 |
3±2°C
(5.5±3.6 °F) |
2±1°C
(3.6±1.8 °F) |
60°C
(140°F) |
| KRA0000705200 |
KUA0000705200 |
0-70°C
(32-160°F) |
1500 |
4.8 |
130 |
5±3°C
(9±5.4°F) |
3±2°C
(5.5±3.6 °F) |
160°C
(320°F) |
| KRA0000701200 |
KUA0000701200 |
0-70°C
(32-160°F) |
3000 |
4.8 |
130 |
5±3°C
(9±5.4°F) |
3±2°C
(5.5±3.6 °F) |
160°C
(320°F) |
| KRA0200905000 |
KUA0200905000 |
20-90°C
(70-195°F) |
1500 |
4.8 |
130 |
5±3°C
(9±5.4°F) |
3±2°C
(5.5±3.6 °F) |
160°C
(320°F) |
| KRA0200901000 |
KUA0200901000 |
20-90°C
(70-195°F) |
3000 |
4.8 |
130 |
5±3°C
(9±5.4°F) |
3±2°C
(5.5±3.6 °F) |
160°C
(320°F) |
| KRA0101505000 |
KUA0101505000 |
10-150°C
(50-300°F) |
1500 |
4.8 |
130 |
5±3°C
(9±5.4°F) |
3±2°C
(5.5±3.6 °F) |
160°C
(320°F) |
| KRA0101501000 |
KUA0101501000 |
10-150°C
(50-300°F) |
3000 |
4.8 |
130 |
5±3°C
(9±5.4°F) |
3±2°C
(5.5±3.6 °F) |
160°C
(320°F) |
| KRA0802000100 |
KUA0802000100 |
80-200°C
(175-390°F) |
1500 |
4 |
100 |
10±4°C
(18±7°F) |
7±3°C
(12.5±5.4 °F) |
320°C
(610°F) |
| KRA0503000100 |
KUA0503000100 |
50-300°C
(120-570°F) |
1500 |
4 |
100 |
10±4°C
(18±7°F) |
7±3°C
(12.5±5.4 °F) |
320°C
(610°F) |
| KRA0104507000 |
KUA0104507000 |
10-450°C
(50-840°F) |
1500 |
4.8 |
120 |
20±6°C
(36±11°F) |
12±4°C
(22±7 °F) |
760°C
(1400°F) |
| KRA0104509000 |
KUA0104509000 |
10-450°C
(50-840°F) |
3000 |
4.8 |
120 |
20±6°C
(36±11°F) |
12±4°C
(22±7 °F) |
760°C
(1400°F) |
| KRA0605007000 |
KUA0605007000 |
60-500°C
(140-930°F) |
1500 |
4.8 |
120 |
20±6°C
(36±11°F) |
12±4°C
(22±7 °F) |
760°C
(1400°F) |
| KRA0605009000 |
KUA0605009000 |
60-500°C
(140-930°F) |
3000 |
4.8 |
120 |
20±6°C
(36±11°F) |
12±4°C
(22±7 °F) |
760°C
(1400°F) |
| KRA1806007000 |
KUA1806007000 |
180-600°C
(360-1110°F) |
1500 |
4.8 |
120 |
20±6°C
(36±11°F) |
12±4°C
(22±7 °F) |
760°C
(1400°F) |
| KRA1806009000 |
KUA1806009000 |
180-600°C
(360-1110°F) |
3000 |
4.8 |
120 |
20±6°C
(36±11°F) |
12±4°C
(22±7 °F) |
760°C
(1400°F) |
| KRA2807007000 |
KUA2807007000 |
280-700°C
(540-1290°F) |
1500 |
3 |
300 |
20±6°C
(36±11°F) |
12±4°C
(22±7 °F) |
760°C
(1400°F) |
| These thermostats are also available with screw driver adjustment, 20 or 30 mm shaft length
Caution: Bulbs and capillaries of ranges higher than 300°C are filled with sodium potassium eutectic. If they leak or are broken this liquid is flammable if in contact with water |
°C Printed knobs
| -25+25°C |
-10+15°C |
0-50°C |
0-70°C |
20-90°C |
10-150°C |
50-300°C |
10-450°C |
180-400°C |
60-500°C |
280-700°C |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
| 66MZ006-250252FW |
66MZ006-100153FW |
66MZ006
0000502FW |
66MZ006
0000703FW |
66MZ006
0200903FW |
66MZ006
0101503FW |
66MZ006
0503003FW |
66MZ006
014503FW |
66MZ006
1804003FW |
66MZ006
0605003FW |
66MZ006
2807003FW |
°F Printed knobs
| 5-80°F |
15-60°F |
32-120°F |
32-160°F |
70-195°F |
50-300°F |
120-570°F |
50-840°F |
360-752°F |
360-1110°F |
540-1290°F |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
| 66MZ006-250252FX |
66MZ006-100153FX |
66MZ006
0000502FX |
66MZ006
0000703FX |
66MZ006
0200903FX |
66MZ006
0101503FX |
66MZ006
0503003FX |
66MZ006
014503FX |
66MZ006
1804003FX |
66MZ006
0605003FX |
66MZ006
2807003FX |
Soft grip knob and bezel dimensions
| Dimensions |
 |
 |
|
 |
| |
 |
 |
 |
 |
| References |
66MZ…… |
66EN1 |
66EN3 |
66EN2 |
| Material |
PC + Santoprene |
Black ABS |
Chrome plated ABS |
Stainless steel |
|
Soft grip knob and bezel dimensions
 |
 |
| 66GA2890K |
| Black PA66 |
|
| Many other knobs are available, see the full knob list at the end of this catalogue. |
|
