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
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 |
References - 66MZ……
Material - PC + Santoprene
References - 66EN1
Material - Black ABS
References - 66EN3
Material - Chrome plated ABS
References - 66EN2
Material - Stainless steel
References - 66GA2890K
Material - Black PA66