Melting Alloy Overload Relay

Class 9065 / Refer to Catalog 9065CT9701

Melting Alloy Overload Relay Selection

Type SEO5

Type SEO Dimensions

NEMA style thermal overload relays feature:

  • Exclusive one-piece thermal unit

  • Inverse time delay trip

  • Trip free reset mechanism

  • Replaceable contact units

Note that these overload relays do not include thermal units, which must be ordered and field installed separately. Slow trip (Class 30) and quick trip (Class 10) melting alloy thermal units are available for all Size 1, 2, 5 and 6, and some Size 3 applications.

For Separate Mounting—Melting Alloy—600 V Maximum, AC or DC [1]

NEMA Size

Maximum
Full Load
Current (A)

Open Type
for Separate Panel Mounting

Left and Right Hand Types

Open Type Relay and Bracket Kit
for Terminal Block Channel Mounting

Type

Three Pole Construction (One Common N.C. Contact on Type S Only)—3 Thermal Units Required

00–1

25

9065SEO5

2

45

9065SEO8

3

86

9065SEO12

4

133

9065SEO15

Replacement Melting Alloy Overload Relays for Square D Class 8536 Starters

Locate Class 8536 Starter in this Column

Order Class 9065 Overload Relay from this Column

NEMA
Size

Type

Series

Number
of
Poles

Type

Number of
Thermal Units Required

00

SA

A & B

2

1

3

9065SDO5

3

0

SB

A

2

1

3–5

9065SDO5

3 [2]

1

SC

A

2

1

3–5

9065SDO5

3 [2]

1P

SC

A

2

1

2

SD

A

2

1

3–5

9065SDO8

3 [2]

3

SE

A

2

1

3

9065SDO12

3

4

9065SDO13

2

5

9065SDO14

3

4

SF

A

3

9065SDO15

3

4

2

5

9065SDO17

3

5

SG

B [3]

3

9065SEO5

3

6

SH

A & B

3

9065SEO5

3

Special Features for Melting Alloy Overload Relays

Description

Form

Substitute 1-N.O. isolated alarm contact and 1-N.C. contact per relay. (Type S starters only) [4]

Y342

Substitute 2-N.C. contacts for standard N.C. contact per relay. (Type S starters only) [4]

Y344

Modify Type SDO12 relays to accept Type FB quick trip or SB slow trip thermal units. (Rejects Type CC standard trip units) [5]

Y81

Approximate Dimensions, NEMA Style Melting Alloy Overload Relays

Type

Dimensions (in.)

Shipping
Weight
(lb)

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

SEO5

3.31

0.47

3.97

3.53

2.81

0.22

0.69

2.31

0.5

0.5

0.5

0.84

1

1.38

#10

1

SEO8

3.31

0.47

3.97

3.5

2.81

0.19

0.69

2.31

0.5

0.5

0.13

0.84

1

1.38

#10

1.25

SEO12

5.59

0.56

5.75

5.31

4.75

0.28

1.44

3.56

0.75

0.56

0.88

1.5

1.75

2

#1/4

3

SEO15

6.97

0.56

5.75

5.31

4.75

0.28

2.13

3.56

0.75

0.56

0.88

1.5

1.75

2

#1/4

4

note

These dimensions are for reference only. If you need precise measurements, contact the Customer Care Center at 1-888-778-2733.

Footnotes

  1. The maximum power circuit rating for Type S separate-mounting overload relays is 600 Vac only. The maximum control circuit contact rating for Type S versions is 600 Vac only.
  2. For 4-pole starters used on two-phase systems, order two thermal units plus one Class 9998 Type SO31 jumper strap kit for every two starters. Each kit includes two jumper straps.
  3. Also used for Series A with Form Y500. For series A without Forms, see Replacement SSOLRs.
  4. Field modification possible. Order 9999S04 (for Form Y342) or 9999S05 (for Form Y344).
  5. This Form cannot be field modified.

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