Overload relays
T ype TA
Class 10
Description
• Available for starter construction with A
Line contactors and separate panel
mounting
• Designed for close couple mounting for
11 contactors, A9 – A110
• Separate base mounting available for
all overload relays
• Class 10 adjustable overload relays are
standard with all ABB Line starters
• Reset can also be adjusted to function as a
stop button
• Screwdriver guide holes
• All terminal screws are available from the
front
• UL File No: E48139
• CSA File No: LR98336
• Trip indication
• Remote trip and reset option available
• Single phase and phase unbalance
protection
• Isolated alarm circuit (N.O.) contact
• Ambient compensation:
-25°C to +55°C (-13oF to +131oF)
• Manual test
• Manual or automatic reset
• Factory calibrated and tested
• Wide adjustment range
Catalog number explanation
TA25DU 0.16
Frame size Amp rating
Index
• Features...............................................3.1
• OLRs for A9 – A110 ............................3.4
• Technical data .....................................3.7
• Approximate dimensions ...................3.12
Overload relays
OVERLOAD RELAYS: General info: 3.1 – 3.2 Selection: 3.3 – 3.4 Accessories: 3.5 – 3.6 Technical data: 3.7 – 3.10 Dimensions: 3.11 – 3.12
AC 1030 – 6/98
ABB Control Inc. 3.1
Selection guide
for Overload relays
Thermal O/L relays
Types TA25DU TA42DU TA75DU TA80DU
Main characteristics
Construction 3 pole with ambient temperature compensation.
Resetting Convertible: Manual to Automatic
Setting ranges Number 18 3 6 4
from 0.1 – 0.16A 18 – 25A 18 – 25A 29 – 42A
to 24 – 32A 29 – 42A 60 – 80A 60 – 80A
Mounted with contactors
Mounting kit No kit is required for mounting thermal O/L relays below contactors
Types of contactors A9 BC9
for combined mounting A12
A16 BC16
A26 BC25
A30 BC30 A30
A40 A40
Protection against single phase operation. Built in auxiliary contacts: 1N.O. + 1N.C.
BC18
A50 AE50
A63 AE63
A75 AE75
A95 AE95
A110 AE110
Selection
guide
Mounted separately (i.e. separate from contactor)
Separate mounting kit DB25 DB80
Accessories
Tripping coil DS25-A
Resetting coil DR25-A
Terminal shroud Terminals protected against direct contact (without the addition of terminal shrouds)
Function markers BA5-50
OVERLOAD RELAYS: General info: 3.1 – 3.2 Selection: 3.3 – 3.4 Accessories: 3.5 – 3.6 Technical data: 3.7 – 3.10 Dimensions: 3.11 – 3.12
AC 1030 – 6/98
ABB Control Inc. 3.3
Overload relays
Selection
TA25DU
TA42DU
Type TA, Class 10
for Contactors A9 – A110
For Setting range Catalog
contactor A number
A9 – A40 2.2 – 3.1 TA25DU3.1
BC9 – BC30
A30 – A40 22 – 32 TA42DU32
A(E)50 – A(E)75 36 – 52 TA75DU52
A(E)95 – A(E)110 60 – 80 TA80DU80
1
0.1 – 0.16 TA25DU0.16
0.16 – 0.25 TA25DU0.25
0.25 – 0.4 TA25DU0.4
0.4 – 0.63 TA25DU0.63
0.63 – 1.0 TA25DU1.0
1.0 – 1.4 TA25DU1.4
1.3 – 1.8 TA25DU1.8
1.7 – 2.4 TA25DU2.4
2.8 – 4.0 TA25DU4.0
3.5 – 5.0 TA25DU5.0
4.5 – 6.5 TA25DU6.5
6.0 – 8.5 TA25DU8.5
7.5 – 11 TA25DU11
10 – 14 TA25DU14
13 – 19 TA25DU19
18 – 25 TA25DU25
24 – 32 TA25DU32
18 – 25 TA42DU25
29 – 42 TA42DU42
18 – 25 TA75DU25
22 – 32 TA75DU32
29 – 42 TA75DU42
45 – 63 TA75DU63
60 – 80 TA75DU80
29 – 42 TA80DU42
36 – 52 TA80DU52
45 – 63 TA80DU63
65 – 90 TA110DU90
80 – 110 TA110DU110
TA75DU
Overload relays
TA80DU
TA110DU
AC 1030 – 6/98
1 To select an overload relay for BC9 – BC30 contactors, delete the “A” from the catalog number. Ex.: BC9-30-01-04 contactors
with setting range of 1.3 – 1.8: OLR catalog number will be T25DU1.8
OVERLOAD RELAYS: General info: 3.1 – 3.2 Selection: 3.3 – 3.4 Accessories: 3.5 – 3.6 Technical data: 3.7 – 3.10 Dimensions: 3.11 – 3.12
Discount schedule TAA — TA25
3.4 ABB Control Inc.
Discount schedule TBA — TA42, TA75
Discount schedule TCA — TA80, TA110
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