ABB T7 Catalog Page

Thermal overload relays

T ype T7
Class 10

Description

• Designed for close couple mounting for
two contactors, B6 and B7

• Separate base mounting available

• Class 10 adjustable overload relays

• 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: E149922

• CSA File No: LR702107

• Trip indication

• Single phase and phase unbalance
protection

• Isolated alarm circuit (N.O.) contact

• Ambient compensation:

-25°C to +50°C (-13°F to 122°F)

• Manual test

• Manual or automatic reset

• Factory calibrated and tested

• Wide adjustment range

Catalog number explanation

T7DU 0.16

Frame size

AC 1000.1 — 10/98

This catalog is published for information purposes only and is not all inclusive. For additional information on products or technical information, consult ABB Control Inc. The installation and
use of ABB Control Inc. products should be in accordance with the provisions of the U.S. National Electrical Code and/or other local codes or industry standards that are pertinent to the
particular end use. Installation or use not in accordance with these codes and standards could be hazardous to personnel and/or equipment.

ABB Control Inc.

Amp rating

1

T7DU

Thermal overload relay T7DU

For mini contactors
Selection

Thermal overload relay — for contactors B6,B7, BC6, BC7, B6S, B7S, VB6(7), VBC6(7),
VB6A(7A), VBC6A(/7A)

Setting range Catalog List

Amps number price

0.1–0.16 T7DU0.16

0.16–0.24 T7DU0.24

0.24–0.4 T7DU0.4

0.4–0.6 T7DU0.6

0.6–1.0 T7DU1.0

1.0–1.6 T7DU1.6 $ 32

1.6–2.4 T7DU2.4

2.4–4.0 T7DU4.0

4.0–6.0 T7DU6.0

6.0–9.0 T7DU9.0

9.0–12.0 T7DU12.0

Loading capacity of auxiliary switches

Type T 7 DU

Rated operating voltage Ue/V
Thermal current A6 6
Rated operating current I

Pilot duty rating

General use

R

R

IEC / UL508

e

at AC-15 220/240 V A 1.5 1.5
at AC-15 380/415 V A 0.7 0.5
at AC-15 500 V A 0.5 0.3
at DC-15 220 V A 0.2 0.2

AC D300 D300
DC R300 R300

240V 1.5A 1.5A
600V 0.6A 0.6A

N.C. N.O.

95 – 96 97 – 98

V 500 / 300 500 / 300

Thermal overload relay T7DU

Setting range Short circuit protection (fuses, circuit breakers) Joule losses

Coordination Type 2 (IEC) Coordination Type 1(IEC) 600V, 5kA Resistance at upper

A – A A A

0.1–0.16 0.5 20 1 15A 62.3 1.6

0.16–0.24 1 20 1 15A 27 1.6

0.24–0.4 2 20 1 15A 11.7 1.9

0.4–0.6 2 20 1 15A 4.61 1.7

0.6–1.0 4 20 3 15A 1.66 1.7

1.0–1.6 6 20 6 15A 0.63 1.6

1.6–2.4 6 20 6 15A 0.27 1.6

2.4–4.0 10 20 15 15A 0.107 1.7

4.0–6.0 10 20 20 15A 0.049 1.8

6.0–9.0 10 20 35 15A 0.021 1.7

9.0–12.0 20 20 45 15A 0.010 1.4

gL/gG gL/gG

R

Fuse MCCB setting

per phase current

WW

per phase

AC 1000.1 — 10/98

2

Discount schedule MB

ABB Control Inc.