ABB Overload relays Catalog Page

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