Thermal overload relay TF42
2CDC106023D0201
ABB STOTZ-KONTAKT
28-3441 Data sheet
Thermal overload relay TF42
Thermal overload relays are economic electromechanical protection devices for the main circuit. They are used mainly to protect motors against overload and phase failures. Starter combinations are setup together with contactors.
1SBC101247F0010
Description Overload protection trip class 10 Phase loss sensitivity Temperature compensation from -25 ... +60 °C Adjustable current setting for overload protection Automatic or manual reset selectable Suitable for three- and single-phase application Trip-free mechanism Status indication STOP and TEST function Direct mounting onto block contactors Sealable cover
Approvals A cULus UL 508 K CB scheme
Marks a CE
Order data
TF42 screw terminal For AF contactors
Setting range Type
A 0.10 ... 0.13 0.13 ... 0.17 0.17 ... 0.23 0.23 ... 0.31 0.31 ... 0.41 0.41 ... 0.55 0.55 ... 0.74 0.74 ... 1.00 1.00 ... 1.30 1.30 ... 1.70 1.70 ... 2.30 2.30 ... 3.10 3.10 ... 4.20 4.20 ... 5.70 5.70 ... 7.60 7.60 ... 10.0 10.0 ... 13.0 13.0 ... 16.0 16.0 ... 20.0 20.0 ... 24.0 24.0 ... 29.0 29.0 ... 35.0 35.0 ... 38.0/40.0
TF42-0.13 TF42-0.17 TF42-0.23 TF42-0.31 TF42-0.41 TF42-0.55 TF42-0.74 TF42-1.0 TF42-1.3 TF42-1.7 TF42-2.3 TF42-3.1 TF42-4.2 TF42-5.7 TF42-7.6 TF42-10 TF42-13 TF42-16 TF42-20 TF42-24 TF42-29 TF42-35 TF42-38
Order code
1SAZ721201R1005 1SAZ721201R1008 1SAZ721201R1009 1SAZ721201R1013 1SAZ721201R1014 1SAZ721201R1017 1SAZ721201R1021 1SAZ721201R1023 1SAZ721201R1025 1SAZ721201R1028 1SAZ721201R1031 1SAZ721201R1033 1SAZ721201R1035 1SAZ721201R1038 1SAZ721201R1040 1SAZ721201R1043 1SAZ721201R1045 1SAZ721201R1047 1SAZ721201R1049 1SAZ721201R1051 1SAZ721201R1052 1SAZ721201R1053 1SAZ721201R1055
Packing Weight
unit
per PCE
PCE kg
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.130
1
0.145
1
0.145
1
0.145
1
0.145
1
0.145
Suitable for mounting on: AF09 ... AF16 AF26 ... AF38
Functional description
1SBC101247F0010
1
1 Terminals (1L1, 3L2, 5L3)
2 Sealable cover 2
3 Current setting range Adjustable current setting for overload protection
3 4 Status indication
4
5
5 RESET button
6
Automatic or manual reset selectable
7 6 Signaling contacts 97-98
8
7 Terminals 2T1, 4T2, 6T3 9
8 Tripping contacts 95-96
9 STOP button
Application / internal function
The thermal overload relays are three pole relays with bimetal tripping elements (1 per pole). The motor current flows through the bimetal tripping elements and heats them directly and indirectly. In case of an overload (over current), the bimetal elements become bent as a result of the heating. This leads to a release of the relay and a change of the contacts switching position (95-96 / 97-98). The contact 95-96 is used to control the load contactor.
The overload relays have a setting scale in Amperes, which allows the direct adjusting of the relay without any additional calculation. In compliance with international and national standards, the setting current is the rated current of the motor and not the tripping current (no tripping at 1.05 x I, tripping at 1.2 x I; I = setting current). The relays are constructed in way that they protect themselves in the event of an overload. The overload relay has to be protected against short-circuit. The appropriate short-circuit protection devices are shown in the table.
Operation mode
1~
3~
2CDC232001F0010
Trip state RESET state TEST manual reset mode TEST auto reset mode STOP while device is in trip state STOP while device is in RESET state
Contact 95-96 open closed open open open open
Wiring diagram
A RESET
95
M
Contact 97-98 closed open closed closed closed open
97
Status indication Comment
ON
while TEST is operated STOP button has no function while STOP button is pressed
2CDC232001F0009
2T1 4T2 6T3
TEST STOP
96
98
2 - 2CDC106023D0201
Resistance and power loss per pole and short-circuit protection device
Type
TF42-0.13 TF42-0.17 TF42-0.23 TF42-0.31 TF42-0.41 TF42-0.55 TF42-0.74 TF42-1.0 TF42-1.3 TF42-1.7 TF42-2.3 TF42-3.1 TF42-4.2 TF42-5.7 TF42-7.6 TF42-10 TF42-13 TF42-16 TF42-20 TF42-24 TF42-29 TF42-35 TF42-38
Setting range
lower value A
0.10 0.13 0.17 0.23 0.31 0.41 0.55 0.74 1.00 1.30 1.70 2.30 3.10 4.20 5.70 7.60 10.00 13.00 16.00 20.00 24.00 29.00 35.00
upper value A
0.13 0.17 0.23 0.31 0.41 0.55 0.74 1.00 1.30 1.70 2.30 3.10 4.20 5.70 7.60 10.00 13.00 16.00 20.00 24.00 29.00 35.00 40.00
Resistance per pole
m: 106508.88 62283.74 37429.00 20603.43 11421.77 6347.11 3615.62 1920.00 1065.09 622.84 340.26 187.30 102.04 59.10 31.16 19.30 13.07 7.79 6.25 4.51 3.09 2.25 1.72
Power loss
at lower value W
1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.3 1.3 1.8 1.8 1.8 2.1 2.1
at upper value W
2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.2 2.2 2.6 2.6 2.6 2.8 2.8
Short-circuit protection device coordination type 2
0.5 A, Type T 1.0 A, Type T 1.0 A, Type T 1.0 A, Type T 2.0 A, Type gG 2.0 A, Type gG 4.0 A, Type gG 6.0 A, Type gG 6.0 A, Type gG 10.0 A, Type gG 10.0 A, Type gG 10.0 A, Type gG 20.0 A, Type gG 20.0 A, Type gG 35.0 A, Type gG 35.0 A, Type gG 40.0 A, Type gG 40.0 A, Type gG 63.0 A, Type gG 63.0 A, Type gG 63.0 A, Type gG 80.0 A, Type gG 80.0 A, Type gG
switching frequency ABB827833
tripping time ABB836246
Technical diagrams Intermittent periodic duty
(Op/h) 140
120
100
ta = 0.5 s ta= 1 s
80
60
40
t a
ta = 1.5 = 3 s
s
20 ta = 5 s
0 0 20 40 60 80 100 (%) duty ratio
Motor starting time
Dimensions in mm and inches
16.2 0.64" 2.3 0.09"
11.7 0.46"
(s) 40
20 11
10
6 4 3 2
1
3
4
5 6 78
7.4
multiple of setting current
Tripping curve, starting from cold state
50.25 1.98"
2.7 0.11"
88.3 3.48" 2CDC232005F0009
8.1 0.32"
9.1 0.36" 14.4
45 1.77"
12.35 0.49" 0.57"
52.6 2.07" 66.4 2.61" 70.5 2.78"
2CDC106023D0201 - 3
Technical data IEC/EN Data at TA = 40 °C and at rated values, if nothing else indicated
Main circuit
Rated operational voltage Ue Setting range - thermal overload protection Rated operational current AC-3 Ie Trip class Rated frequency Number of poles Resistance per pole Power loss per pole Short-circuit protection device
Isolation data Rated impulse withstand voltage Uimp Rated insulation voltage Ui Pollution degree
Electrical connection Connecting capacity
Stripping length Tightening torque Connection screw
solid stranded flexible with ferrule flexible with ferrule isolated flexible without ferrule
2T1-4T2-6T3 690 V a.c. - V d.c. see table on page 1 see upper value of setting range, table on page 3 10 50/60 Hz 3 see table on page 3 see table on page 3 see table on page 3
2T1-4T2-6T3 6 kV 690 V 3
TF42 d 20 A 1/2 x 0.75 ... 4 mm²
1/2 x 0.75 ... 4 mm²
1/2 x 0.75 ... 4 mm²
1/2 x 0.75 ... 4 mm² 1/2 x 0.75 ... 4 mm²
12 mm 1.5 ... 2.5 Nm M4 (Pozidrive 2)
TF42 > 20 A 1/2 x 1.5 ... 2.5 mm² / 1/2 x 2.5 ... 10 mm² 1/2 x 1.5 ... 2.5 mm² / 1/2 x 2.5 ... 10 mm² 1/2 x 1.5 ... 2.5 mm² / 1/2 x 2.5 ... 10 mm² 1/2 x 1.5 ... 6 mm² 1/2 x 2.5 ... 4 mm² / 1/2 x 4 ... 6 mm²
2.5 ... 2.7 Nm
4 - 2CDC106023D0201
Auxiliary circuit
Rated operational voltage Ue Conventional free air thermal current Ith Rated frequency Number of poles Rated operational current Ie acc. to IEC/EN 60947-5-1 for utilization category
at AC15 at 110-120 V at AC15 at 220-230-240 V at AC15 at 440 V at AC15 at 480-500 V at DC13 at 24 V at DC13 at 110-120-125 V at DC13 at 250 V at DC13 at 500 V Minimum switching capacity Short-circuit protection device
Isolation data Rated impulse withstand voltage Uimp Rated insulation voltage Ui Pollution degree
Electrical connection Connecting capacity
Stripping length Tightening torque Connection screw
NC, 95-96 NO, 97-98
NC, 95-96 NO, 97-98 NC, 95-96 NO, 97-98 NC, 95-96 NO, 97-98 NC, 95-96 NO, 97-98 NC, 95-96 NO, 97-98 NC, 95-96 NO, 97-98 NC, 95-96 NO, 97-98 NC, 95-96 NO, 97-98
NC, 95-96 NO, 97-98
solid stranded flexible with ferrule flexible with ferrule isolated
flexible without ferrule
95-96, 97-98 600 V 6 A 4 A d.c., 50/60 Hz 1NC + 1NO
3.00 A 0.75 A 3.00 A 0.75 A 0.75 A 0.75 A 0.75 A 0.75 A 1.25 A 1.25 A 0.55 A 0.55 A 0.27 A 0.27 A 0.15 A 0.15 A 17 V / 3 mA 6 A, Type gG 4 A, Type gG
95-96, 97-98 6 kV 690 V 3
95-96, 97-98 1/2 x 0.75 ... 4 mm² 1/2 x 0.75 ... 4 mm² 1/2 x 0.75 ... 2.5 mm² 1 x 0.75 ... 2.5 mm² 2 x 0.75 ... 1.5 mm² 1/2 x 0.75 ... 1 mm² / 1/2 x 1 ... 2.5 mm² 9 mm 1 ... 1.5 Nm M3 (Pozidrive 2)
2CDC106023D0201 - 5
Generell data
Duty time Operating frequency without early tripping
Dimensions (W x H x D) Weight Mounting
Mounting position Minimum distance to other units same type
Minimum distance to electrical conductive board
Degree of protection Altitude
horizontal vertical horizontal vertical
100 % up to 15 operations/h or 60 operations/h with 40 % duty ratio, if the motor breaking current 6 x In and the motor starting time does not exceed 1 s see dimension drawing see ordering data mount on the contactor and tighten the screws of the main circuit terminals or with single mounting kit on DIN rail (35 mm) position 1-5 none not applicable none on request IP20 up to 2000 m
Electromagnetic compatibility
Electromagnetic compatibility
not applicable
Environmental data
Ambient air temperature Operation
Storage Temperature compensation Vibration (sinusoidal) acc. to IEC/EN 60068-2-6 (Fc) Shock (half-sine) acc. to IEC/EN 60068-2-27 (Ea)
open - compensated without derating -25 ... +60 °C (> 38 A: -25 ... +50 °C)
open
-25 ... +60 °C (> 38 A: -25 ... +50 °C)
-50 ... +80 °C
continuous
5g / 3 ... 150 Hz
25g / 11 ms
Standards / directives
Product standard
Low Voltage Directive EMC Directive RoHS Directive
IEC/EN 6094741 IEC/EN 60497-5-1 IEC/EN 60947-1 UL 508, CSA22.2 No. 14 2006/95/EC 2004/108/EC 2002/95/EC
6 - 2CDC106023D0201
Technical data UL/CSA
Full load amps and short-circuit protection device
Type
TF42-0.13 TF42-0.17 TF42-0.23 TF42-0.31 TF42-0.41 TF42-0.55 TF42-0.74 TF42-1.0 TF42-1.3 TF42-1.7 TF42-2.3 TF42-3.1 TF42-4.2 TF42-5.7 TF42-7.6 TF42-10 TF42-13 TF42-16 TF42-20 TF42-24 TF42-29 TF42-35 TF42-38
Full load amps (FLA)
A 0.13 0.17 0.23 0.31 0.41 0.55 0.74 1.00 1.30 1.70 2.30 3.10 4.20 5.70 7.60
10.00 13.00 16.00 20.00 24.00 29.00 35.00 40.00
Short-circuit protection device coordination type 2
1 A, Fuse type K5 1 A, Fuse type K5 1 A, Fuse type K5 3 A, Fuse type K5 3 A, Fuse type K5 3 A, Fuse type K5 3 A, Fuse type K5 6 A, Fuse type K5 6 A, Fuse type K5 6 A, Fuse type K5 10 A, Fuse type K5 10 A, Fuse type K5 15 A, Fuse type K5 20 A, Fuse type K5 25 A, Fuse type K5 35 A, Fuse type K5 40 A, Fuse type K5 60 A, Fuse type K5 80 A, Fuse type K5 80 A, Fuse type K5 100 A, Fuse type K5 150 A, Fuse type K5 150 A, Fuse type K5
Main circuit
Maximum operational voltage Trip rating Full load amps (FLA) Short-circuit rating RMS at 600 V symmetrical Short-circuit protection device
Electrical connection Connecting capacity
Stripping length Tightening torque
stranded flexible without ferrule
Auxiliary circuit
Conventional thermal current
Making and breaking capacity
Electrical connection Connecting capacity
Stripping length Tightening torque
NC NO NC NO
stranded flexible without ferrule
600 V a.c. 125 % of FLA see table above 18000 A see table above
TF42 d 20 A 1/2 x AWG 18 ... 10 1/2 x AWG 18 ... 10 12 mm 13 ... 22 Ib-in
TF42 > 20 A 1/2 x AWG 14 ... 6 1/2 x AWG 14 ... 6
22 Ib-in
5 A 2.5 A B600, Q300 D300, Q300
1/2 x AWG 18 ... 12 1/2 x AWG 18 ... 12 9 mm 9 ... 13 Ib-in
2CDC106023D0201 - 7
Contact us
ABB STOTZ-KONTAKT GmbH Eppelheimer Straße 82 69123 Heidelberg, Germany Phone: +49 (0) 6221 7 01-0 Fax: +49 (0) 6221 7 01-13 25 E-Mail: info.desto@de.abb.com You can find the address of your local sales organisation on the ABB home page http://www.abb.com/contacts -> Low Voltage Products and Systems
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Brochure number 2CDC 106 023 D0201 (12.2010)
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