Brochure
Table Of Contents
- Introduction
- Motor Failure and Protection
- Trip Class Designation
- Withstand Ratings
- Thermal Overload Relay
- Melting Alloy
- Non-Compensated Bimetallic
- Automatic Reset
- Ambient Temperature Compensated Bimetallic
- Thermal Overload Relay Trip Characteristics
- Solid State Overload Relay
- Additional Standard Features
- Optional Features
- Additional Standard Features
- Optional Features
- General
- Nameplate Versus NEC Full-load Current
- Service Factor
- Motor Branch Circuit Design
- Overload Relays
- Hand Reset Melting Alloy
- Accessories
- Isolated Auxiliary Contacts for Motor Logic Overload Relays
- DIN Adapter
- Lug-Lug/Lug-Extender Kits
- Remote Reset Module
- 4 – 20 ma DC Communication Module
- Contact Units for Melting Alloy Type Overload Relays
- Melting Alloy Overload Relay Jumper Strap Kits
- Bimetallic Overload Relays
- Motor Logic™ – Solid State Overload Relay
13
5/98
© 1998 Square D All Rights Reserved
Thermal Overload Relays – NEMA Rated
Application Data
Power Circuit Voltage Ratings
Accessories
Isolated Auxiliary Contacts for Motor Logic Overload Relays
Overload Relay auxiliary contacts are available factory installed or in kit form for field installation on
Motor Logic Overload Relays. These contacts may be used for isolated alarm contact applications.
DIN Adapter
The DIN adapter provides a method to mount the Motor Logic overload relay to a 35 mm DIN rail.
Lug-Lug/Lug-Extender Kits
A Class 9999 LL0 Lug-Lug Kit can be field installed on separately mounted overload relays. The
standard NEMA Size 00
B
, 00
C
, 0, and 1 Class 9065 Type SS and SF Overload Relays are supplied
without lugs. A Class 9999 LB0 Lug-Extender Kit is designed for NEMA Size 00
B
, 00
C
, 0, and 1 Retrofit
Starter Applications. This kit allows the lugs to be in the same location as the Class 9065 Melting Alloy
Overload Relay, eliminating the need for additional wire length.
Type AC — 50 or 60 Hz DC
C, F, G, T, U 600 600
A, S 600 —
AF, AG, AR, AT, AU 600 600
AC — 50 or 60 Hz DC
Type
NEMA
Contact
Ratings
Volts
(Minimum
of
110 volts
is recom-
mended)
Inductive
35% Power Factor
Type Form Volts
Inductive
and
Resistive
Make Break Make and
Break
Amperes
Amps VA Amps VA
AD, AG, AR, AT, AU,
C, F, G, T, U,
SAF, SAG, SAU, SDO18
SS, SSF, SR, ST
A600
120
240
480
600
60
30
15
12
7200
7200
7200
7200
6
3
1.5
1.2
720
720
720
720
AF, AG, AR, AT, AU,
SAF, SAG, SAU
Std. 125 .55
C, T, U
Std.,
Y34,
or Y342
125
250
1.1
.55
SD & SE (Sizes 0-4 & 6),
Class 9998 Type SO1 and
Class 9999 Type SO4
and SO5 Contact
Modules
B600
120
240
480
600
30
15
7.5
6.0
3600
3600
3600
3
1.5
.75
.6
360
360
360
360
F
GO11
SDO18
Std.
125
250
.55
.27
Y34 125 .22
SD & SE (Sizes 0-4 & 6) Std. – –
SD & SE (Sizes 0-4 & 6)
Y34 or
Y342
125 .22
Class 9999 Type SO4
and SO5
Std.
SS, SF, SR, ST Std.
125
250
1.1
.55
For Use with
Description
Class 9999
Parts Kit
Type NEMA Size
8536 SA-SJ 00
B
through 7
N.O. or N.C. Auxiliary Contact
(Field Convertible)
AC04
9065 SS, SR, SF, ST 00
B
through 7
For Use With
Description
Class 9999
Parts Kit
Type NEMA Size
9065 SS or SF 00
B
, 00
C
, 0, and 1 DIN Adapter DA01
For Use With
Description
Class 9999
Parts Kit
Type NEMA Size
9065 SS or SF 00
B
, 00
C
, 0, and 1 Lug-Lug Kit for separate mounting 9999 LL0
9065 SS or SF 00
B
, 00
C
, 0, and 1 Lug-Extender Kit for retrofitting existing NEMA Type “S” starters 9999 LB0