Home Electrical Appliances Transformers Tf 102°C Fusing Temp. 99°C ,Alloy Thermal-link / Thermal Cutoff (TCO) Alloy Thermal-link / Thermal Cutoff (TCO) is defined as a non-resettable protective device functioning one time only. It is wide- ly used in electrical equipment. Alloy TCO is mainly consist of fusible alloy, flux, plastic or ceramic case, sealant epoxy and lead wires. Normally, fusible alloy is jointed to the two lead wires. Under abnormal conditions, when the temp. reaches to the fusing temp. of alloy TCO, the fusible alloy melts and quickly retracts to the two lead wire ends with the aid of the flux and dis- connects the circuit completely. Rated Current 1 A to 200 A, Rated Functioning Temp. 76 °Cto 230 °C, with CCC, UL, CUL, TUV, KTL, PSE, Approvals and RoHS, REACH compliant. Thermal-link Attention The surface temp.of TCO less than the holding temp of TCO The seal or body of TCO must not be burned or over heated. Installationpositionofmechanicalperformancerequirements Do not locate the TCO in a place where severe vibration always occurs. Ensure that the lead wire is long enough, and avoid actions such as press, tensile or twist. The seal or body of TCO must not be damaged. Soldering Hand Soldering Soldering should be carried out according to table 1 & table 2 The thermal element of TCO is fusible alloy with low melting point, which is jointed with TCO lead wires. Improper soldering operation (too high soldering temp. , too long soldering time, too short lead wire etc.) may transfer more heat to the thermal element and TCO may open in advance. When soldering conditions are more severe than those listed in table 1 & table 2, a heat sink fixture should be used be- tween soldering point and TCO body. When soldering, please do not pull / push or twist TCO body or lead wires. After soldering, let it naturally cool for longer than 20 s. During cooling, never move the TCO body or lead wires. Table 1. Hand Soldering Time When the TCO Lead Wire is Tinned Copper Wire (s) Rated Functioning Temp. Tf | Max. Allowable Soldering Time for Different Lead Wire Length | Max. Soldering Temp. | Length of Lead Wire | Max. Allowable Soldering Time | Length of Lead Wire | Max. Allowable Soldering Time | Length of Lead Wire | Max. Allowable Soldering Time | (°C) | (mm) | (s) | (mm) | (s) | (mm) | (s) | (°C) | 76 - 101 | 10 | 1a | 20 | 2 | 30 | 3 | 400 | 102 - 115 | 10 | 1a | 20 | 2 | 30 | 3 | 116 - 135 | 10 | 1a | 20 | 3 | 30 | 5 | 136 - 150 | 10 | 3 | 20 | 5 | 30 | 5 | 151 - 230 | 10 | 4 | 20 | 6 | 30 | 7 | Auxiliary Heat Sink Fixture is Required to Avoid TCO Cutting Off Unexpectedly. Table 2. Hand Soldering Time When the TCO Lead Wire is Copper Plated (CP) wire (s) Rated Functioning Temp. Tf | Max. Allowable Soldering Time when the Length of Lead Wire is Different (s) | Max. Soldering Temp. | Length of Lead Wire | Max. Allowable Soldering Time | Length of Lead Wire | Max. Allowable Soldering Time | Length of Lead Wire | Max. Allowable Soldering Time | (°C) | (mm) | (s) | (mm) | (s) | (mm) | (s) | (°C) | 76 - 101 | 10 | 4 | 20 | 5 | 30 | 6 | 400 | 102 - 115 | 10 | 4 | 20 | 5 | 30 | 6 | 116 - 135 | 10 | 4 | 20 | 6 | 30 | 8 | 136 - 150 | 10 | 6 | 20 | 8 | 30 | 8 | 151 - 230 | 10 | 7 | 20 | 9 | 30 | 10 |  Wave Soldering The wave soldering parameters as table 3, For reference only, when TCO is for practice use, you need to do some validation experiments. For example, using X-RAY to see the fusible alloy of TCO whether damage after wave soldering. Rated Functioning Temp. Tf | Max. Allowable Preheating Temp. When the Length of Lead Wire is Different | (t1) Preheating Time | Max. Wave Soldering Temp. | (t2) Dip Time | (t3) Cooling Time | The Length of lead wire | Preheating Temp. | The Length of lead wire | Preheating Temp. | (°C) | (mm) | (°C) | (mm) | (°C) | (s) | (°C) | (s) | (s) | 76 - 130 | Advise Hand Soldering | 131 - 150 | 20 | 80 | 30 | 90 | <60 | ≤260 | ≤3 | ≤10 | 151 - 230 | 20 | 90 | 30 | 100 | <60 | ≤260 | ≤3 | ≤10 | Mechanical Connection Riveting Suitable for the lead wire diameter (d) of TCO ≥1.2 mm . Choose small resistivity riveting material and be riveted. A flexible lead or lead with low resistance should be used to rivet the TCO. Contact resistance should be minimal, Large contact resistance will lead to higher temp., TCO Functioning in advance Crimping Suitable for the lead wire of TCO is flat electrode. Choose small resistivity crimping material and be riveted. Crimping process, to ensure that the lead will not be reversed, sealing resin will not be destroyed. Contact resistance should be minimal, Large contact resistance will lead to higher temp., TCO Functioning in advance.   Dimensions (mm) L | L1 | W | T | d | F | 5.8±0.5 | 70±2 | 5.8±0.5 | 2.3±0.2 | Φ0.50±0.05 | 3.2±0.5 | Specifications Model | Tf | Fusing Temp. | Th | Tm | Ir | Ur |  |  |  |  |  | (°C) | (°C) | (°C) | (°C) | (A) | (V) | UL | CUL | TUV | CCC | A0 | 76 | 73±2 | 53 | 200 | 1 | AC 300 | | | ● | ● | ● | A1 | 86 | 81±2 | 61 | 200 | 1 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | A2 | 102 | 99±2 | 79 | 200 | 1 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | A3 | 115 | 111±2 | 91 | 200 | 1 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | A4 | 125 | 120±2 | 100 | 200 | 1 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | A5 | 130 | 125±2 | 106 | 200 | 1 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | A6 | 133 | 130±2 | 112 | 200 | 1 | AC 300 | ● | ● | | | ● | DC 60 | ● | ● | | | ● | A7 | 135 | 130±2 | 112 | 200 | 1 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | A8 | 136 | 131±2 | 112 | 200 | 1 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | A22 | 140 | 136±2 | 121 | 200 | 1 | AC300 | ● | ● | | ● | ● | A9 | 145 | 140±2 | 121 | 200 | 1 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | A10 | 150 | 145±2 | 126 | 200 | 1 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | A11 | 160 | 156±2 | 135 | 200 | 1 | AC 300 | | | | ● | ● | A25 | 185 | 182±3 | 150 | 250 | 1 | AC 300 | | | | ● | ● | A20 | 205 | 198±3 | 160 | 250 | 1 | AC 300 | | | | ● | ● |  Dimensions (mm) L | L1 | W | T | d | F | 5.8±0.5 | 70±2 | 5.8±0.5 | 2.3±0.2 | e 0.54±0.05 | 3.7±0.5 | Specifications Model | Tf | Fusing Temp. | Th | Tm | Ir | Ur |  |  |  |  |  | (°C) | (°C) | (°C) | (°C) | (A) | (V) | UL | CUL | TUV | CCC | B0 | 76 | 73±2 | 53 | 200 | 2 | AC 300 | | | ● | ● | ● | B1 | 86 | 81±2 | 61 | 200 | 2 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | B2 | 102 | 99±2 | 79 | 200 | 2 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | B3 | 115 | 111±2 | 91 | 200 | 2 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | B4 | 125 | 120±2 | 100 | 200 | 2 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | B5 | 130 | 125±2 | 106 | 200 | 2 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | B6 | 133 | 130±2 | 112 | 200 | 2 | AC 300 | ● | ● | | | ● | DC 60 | ● | ● | | | ● | B7 | 135 | 130±2 | 112 | 200 | 2 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | B8 | 136 | 131±2 | 112 | 200 | 2 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | B22 | 140 | 136±2 | 121 | 200 | 2 | AC300 | ● | ● | | ● | ● | B9 | 145 | 140±2 | 121 | 200 | 2 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | B10 | 150 | 145±2 | 126 | 200 | 2 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | B11 | 160 | 156±2 | 135 | 200 | 2 | AC 300 | | | | ● | ● | B25 | 185 | 182±3 | 150 | 250 | 2 | AC 300 | | | | ● | ● | B20 | 205 | 198±3 | 160 | 250 | 2 | AC 300 | | | | ● | ● |  Dimensions (mm) L | L1 | W | T | d | F | 5.8±0.5 | 70±2 | 5.8±0.5 | 2.3±0.2 | e 0.54±0.05 | 3.7±0.5 | Specifications Model | Tf | Fusing Temp. | Th | Tm | Ir | Ur |  |  |  |  |  | (°C) | (°C) | (°C) | (°C) | (A) | (V) | UL | CUL | TUV | CCC | C0 | 76 | 73±2 | 53 | 200 | 3 | AC 300 | | | ● | ● | ● | C1 | 86 | 81±2 | 61 | 200 | 3 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | C2 | 102 | 99±2 | 79 | 200 | 3 | AC 300 | | | ● | ● | ● | DC 60 | ● | ● | | | ● | C3 | 115 | 111±2 | 91 | 200 | 3 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | C4 | 125 | 120±2 | 100 | 200 | 3 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | C5 | 130 | 125±2 | 106 | 200 | 3 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | C6 | 133 | 130±2 | 112 | 200 | 3 | AC 300 | ● | ● | | | ● | DC 60 | ● | ● | | | ● | C7 | 135 | 130±2 | 112 | 200 | 3 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | C8 | 136 | 131±2 | 112 | 200 | 3 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | C22 | 140 | 136±2 | 121 | 200 | 3 | AC300 | ● | ● | | ● | ● | C9 | 145 | 140±2 | 121 | 200 | 3 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | C10 | 150 | 145±2 | 126 | 200 | 3 | AC 300 | ● | ● | ● | ● | ● | DC 60 | ● | ● | | | ● | C11 | 160 | 156±2 | 135 | 200 | 3 | AC 300 | | | | ● | ● | C25 | 185 | 182±3 | 150 | 250 | 3 | AC 300 | | | | ● | ● | C20 | 205 | 198±3 | 160 | 250 | 3 | AC 300 | | | | ● | ● |  Dimensions (mm) L | L1 | W | T | d | F | 7.0±0.5 | 50±2 | 6.6±0.5 | 2.7±0.3 | e0.80±0.05 | 4.0±0.5 | Specifications Model | Tf | Fusing Temp. | Th | Tm | Ir | Ur | In 8/20 | μs | Imax 8/20 μs (1 Time) |  |  |  |  |  | (15 Times) | (°C) | (°C) | (°C) | (°C) | (A) | (V) | (kA) | (kA) | UL | CUL | TUV | CCC | D2 | 102 | 99±2 | 77 | 200 | 5 | AC 300 | 3 | 6 | ● | ● | ● | ● | ● | D3 | 115 | 112±2 | 89 | 200 | 5 | AC 300 | 3 | 6 | ● | ● | ● | ● | ● | D4 | 125 | 120±2 | 98 | 200 | 5 | AC 300 | 3 | 6 | | | ● | ● | ● | | 130 | 125±2 | 103 | 200 | 5 | AC 300 | 3 | 6 | | | ● | ● | ● | D6 | 133 | 130±2 | 108 | 200 | 5 | AC 300 | 3 | 6 | ● | ● | | | ● | D7 | 135 | 130±2 | 108 | 200 | 5 | AC 300 | 3 | 6 | ● | ● | ● | ● | ● | D8 | 136 | 131±2 | 108 | 200 | 5 | AC 300 | 3 | 6 | ● | ● | ● | ● | ● | D10 | 150 | 145±2 | 123 | 200 | 5 | AC 300 | 3 | 6 | | | ● | ● | ● |  Dimensions (mm) L | L1 | W | T | d | F | 7.5±0.5 | 45±2 | 8.3±0.5 | 3.4±0.3 | e1.05±0.05 | 5.2±0.5 | Specifications Model | Tf | Fus- ing Temp. | Th | Tm | Ir | Ur | In 8/20 | μs | Imax 8/20 μs (1 Time) |  |  |  |  |  | (15 Times) | (°C) | (°C) | (°C) | (°C) | (A) | (Vac) | (kA) | (kA) | UL | CUL | TUV | CCC | E2 | 102 | 99±2 | 72 | 200 | 10 | 300 | 5 | 10 | ● | ● | ● | ● | ● | E3 | 115 | 112±2 | 85 | 200 | 10 | 300 | 5 | 10 | ● | ● | ● | ● | ● | E4 | 125 | 121±2 | 95 | 200 | 10 | 300 | 5 | 10 | | | ● | ● | ● | E5 | 130 | 125±2 | 100 | 200 | 10 | 300 | 5 | 10 | | | ● | ● | ● | E6 | 133 | 130±2 | 106 | 200 | 10 | 300 | 5 | 10 | ● | ● | | | ● | E7 | 135 | 130±2 | 106 | 200 | 10 | 300 | 5 | 10 | ● | ● | ● | ● | ● | E8 | 136 | 131±2 | 106 | 200 | 10 | 300 | 5 | 10 | ● | ● | ● | ● | ● | E10 | 150 | 145±2 | 118 | 200 | 10 | 300 | 5 | 10 | | | ● | ● | ● |  Dimensions (mm) L | L1 | W | T | d | F | 7.5±0.5 | 45±2 | 8.3±0.5 | 3.4±0.3 | e1.05±0.05 | 5.2±0.5 | Model | Tf | Fusing Temp. | Th | Tm | Ir | Ur | In 8/20 | μs | Imax 8/20 μs (1 Time) |  |  |  |  |  | (15 Times) | (°C) | (°C) | (°C) | (°C) | (A) | (Vac) | (kA) | (kA) | UL | CUL | TUV | CCC | F1 | 86 | 83±2 | 55 | 200 | 16 | 300 | 5 | 10 | | | | | ● | F2 | 102 | 99±2 | 72 | 200 | 16 | 300 | 6 | 12 | ● | ● | ● | ● | ● | F3 | 115 | 112±2 | 85 | 200 | 16 | 300 | 6 | 12 | ● | ● | ● | ● | ● | F4 | 125 | 121±2 | 95 | 200 | 16 | 300 | 6 | 12 | | | ● | ● | ● | F5 | 130 | 125±2 | 100 | 200 | 16 | 300 | 6 | 12 | | | ● | ● | ● | F6 | 133 | 130±2 | 106 | 200 | 16 | 300 | 6 | 12 | ● | ● | | | ● | F7 | 135 | 130±2 | 106 | 200 | 16 | 300 | 6 | 12 | ● | ● | ● | ● | ● | F8 | 136 | 131±2 | 106 | 200 | 16 | 300 | 6 | 12 | ● | ● | ● | ● | ● | F10 | 150 | 145±2 | 118 | 200 | 16 | 300 | 6 | 12 | | | ● | ● | ● |  Dimensions (mm) L | L1 | W | T | d | F | 7.5±0.5 | 45±2 | 8.3±0.5 | 3.4±0.3 | e1.05±0.05 | 5.2±0.5 | Specifications Model | Tf | Fusing Temp. | Th | Tm | Ur | max 8/20 μs (1 Time) |  |  |  |  |  | (°C) | (°C) | (°C) | (°C) | (Vac) | (kA) | UL | CUL | TUV | CCC | F2_15kA | 102 | 99±2 | 72 | 200 | 300 | 15 | ● | ● | ● | ● | ● | F3_15kA | 115 | 112±2 | 85 | 200 | 300 | 15 | ● | ● | ● | ● | ● | F7_15kA | 135 | 130±2 | 106 | 200 | 300 | 15 | ● | ● | ● | ● | ● | F8_15kA | 136 | 131±2 | 106 | 200 | 300 | 15 | ● | ● | ● | ● | ● |  Dimensions (mm) L | L1 | W | T | d | F | 8.5±0.5 | 45±2 | 9.3±0.5 | 3.8±0.3 | e1.05±0.05 | 5.2±0.5 | Specifications Model | Tf | Fusing Temp. | Th | Tm | Ur | In 8/20 | μs | Imax 8/20 μs (1 Time) |  |  |  |  |  | (15 Times) | (°C) | (°C) | (°C) | (°C) | (Vac) | (kA) | (kA) | UL | CUL | TUV | CCC | F2_20kA | 102 | 99±2 | 72 | 200 | 300 | 10 | 20 | ● | ● | ● | ● | ● | F3_20kA | 115 | 112±2 | 85 | 200 | 300 | 10 | 20 | ● | ● | ● | ● | ● | F7_20kA | 135 | 130±2 | 106 | 200 | 300 | 10 | 20 | ● | ● | ● | ● | ● | F8_20kA | 136 | 131±2 | 106 | 200 | 300 | 10 | 20 | ● | ● | ● | ● | ● |  Dimensions (mm) L | L1 | W | T | d | F | 13±0.5 | 45±2 | 11.5±0.5 | 4.9±0.5 | e1.6±0.05 | 7.2±0.5 | Specifications Model | Tf | Fusing Temp. | Th | Tm | Ir | Ur | In 8/20 | μs | Imax 8/20 μs (1 Time) |  |  |  | (15 Times) | (°C) | (°C) | (°C) | (°C) | (A) | (Vac) | (kA) | (kA) | CCC | TUV | L2 | 102 | 99±2 | 65 | 165 | 20 | 300 | 15 | 25 | | | ● | L3 | 115 | 112±2 | 78 | 165 | 20 | 300 | 15 | 25 | ● | ● | ● | L4 | 125 | 122±2 | 90 | 165 | 20 | 300 | 15 | 25 | ● | ● | ● | L5 | 130 | 126±2 | 96 | 165 | 20 | 300 | 15 | 25 | | | ● | L8 | 136 | 132±2 | 102 | 165 | 20 | 300 | 15 | 25 | ● | ● | ● | L10 | 150 | 145±2 | 116 | 165 | 20 | 300 | 15 | 25 | | | ● |  Dimensions (mm) L | L1 | W | T | d | F | 13±0.5 | 45±2 | 11.5±0.5 | 4.9±0.5 | e1.6±0.05 | 7.2±0.5 | Specifications Model | Tf | Fusing Temp. | Th | Tm | Ir | Ur | In 8/20 | μs | Imax 8/20 μs (1 Time) |  |  |  | (15 Times) | (°C) | (°C) | (°C) | (°C) | (A) | (Vac) | (kA) | (kA) | CCC | TUV | G2 | 102 | 99±2 | 65 | 165 | 25 | 300 | 12 | 25 | | | ● | G3 | 115 | 112±2 | 78 | 165 | 25 | 300 | 15 | 30 | ● | ● | ● | G4 | 125 | 122±2 | 90 | 165 | 25 | 300 | 15 | 30 | ● | ● | ● | G5 | 130 | 126±2 | 96 | 165 | 25 | 300 | 15 | 30 | | | ● | G8 | 136 | 132±2 | 102 | 165 | 25 | 300 | 15 | 30 | ● | ● | ● | G10 | 150 | 145±2 | 116 | 165 | 25 | 300 | 15 | 30 | | | ● |  Dimensions (mm) L | L1 | W | T | d | F | 13±0.5 | 45±2 | 11.5±0.5 | 4.9±0.5 | e2.0±0.05 | 7.2±0.5 | Specifications Model | Tf | Fusing Temp. | Th | Tm | Ir | Ur | In 8/20 | μs | Imax 8/20 μs (1 Time) |  |  |  | (15 Times) | (°C) | (°C) | (°C) | (°C) | (A) | (Vac) | (kA) | (kA) | CCC | TUV | H2 | 102 | 99±2 | 65 | 165 | 30 | 300 | 15 | 30 | | | ● | H3 | 115 | 112±2 | 78 | 165 | 30 | 300 | 20 | 40 | ● | ● | ● | H4 | 125 | 122±2 | 90 | 165 | 30 | 300 | 20 | 40 | ● | ● | ● | H5 | 130 | 126±2 | 96 | 165 | 30 | 300 | 20 | 40 | | | ● | H8 | 136 | 132±2 | 102 | 165 | 30 | 300 | 20 | 40 | ● | ● | ● | H10 | 150 | 145±2 | 116 | 165 | 30 | 300 | 20 | 40 | | | ● |  Dimensions (mm) L | L1 | W | T | d | F | 15.5±1.0 | 45±2 | 13.8±1.0 | 5.7±0.8 | e2.0±0.05 | 9.0±0.5 | Specifications Model | Tf | Fusing Temp. | Th | Tm | Ir | Ur | In 8/20 | μs | Imax 8/20 μs (1 Time) |  | (15 Times) | (°C) | (°C) | (°C) | (°C) | (A) | (Vac) | (kA) | (kA) | M2 | 102 | 99±2 | 61 | 165 | 40 | 300 | 20 | 40 | ● | M3 | 115 | 112±2 | 75 | 165 | 40 | 300 | 25 | 50 | ● | M4 | 125 | 122±2 | 85 | 165 | 40 | 300 | 25 | 50 | ● | M5 | 130 | 126±2 | 90 | 165 | 40 | 300 | 25 | 50 | ● | M8 | 136 | 132±2 | 95 | 165 | 40 | 300 | 25 | 50 | ● | M10 | 150 | 145±2 | 110 | 165 | 40 | 300 | 25 | 50 | ● |  Dimensions (mm) L | L1 | W | T | d | F | 15.5±1.0 | 45±2 | 13.8±1.0 | 5.7±0.8 | e2.2±0.05 | 9.0±0.5 | Specifications Model | Tf | Fusing Temp. | Th | Tm | Ir | Ur | In 8/20 | μs | Imax 8/20 μs (1 Time) |  | (15 Times) | (°C) | (°C) | (°C) | (°C) | (A) | (Vac) | (kA) | (kA) | K2 | 102 | 99±2 | 61 | 165 | 50 | 300 | 25 | 50 | ● | K3 | 115 | 112±2 | 75 | 165 | 50 | 300 | 30 | 60 | ● | K4 | 125 | 122±2 | 85 | 165 | 50 | 300 | 30 | 60 | ● | K5 | 130 | 126±2 | 90 | 165 | 50 | 300 | 30 | 60 | ● | K8 | 136 | 132±2 | 95 | 165 | 50 | 300 | 30 | 60 | ● | K10 | 150 | 145±2 | 110 | 165 | 50 | 300 | 30 | 60 | ● |  Dimensions (mm) L | L1 | W | T | d | F | 15.5±1.0 | 45±2 | 13.8±1.0 | 5.7±0.8 | e2.0±0.05 | 9.0±0.5 | Specifications Model | Tf | Fusing Temp. | Th | Tm | Ur | Imax 8/20 μs (1 Time) |  | (°C) | (°C) | (°C) | (°C) | (Vac) | (kA) | KH2 | 102 | 99±2 | 61 | 165 | 690 | 40 | ● | KH3 | 115 | 112±2 | 75 | 165 | 690 | 40 | ● | KH4 | 125 | 122±2 | 85 | 165 | 690 | 40 | ● | KH5 | 130 | 126±2 | 90 | 165 | 690 | 40 | ● | KH8 | 136 | 132±2 | 95 | 165 | 690 | 40 | ● | KH10 | 150 | 145±2 | 110 | 165 | 690 | 40 | ● |   |