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Square D > On-line Catalog > Products > NEMA Contactors and Starters > Factory Modifications (Forms): Full Voltage Contactors & Starters and Solid State Overload Relays

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Factory Modifications (Forms)

For Full Voltage Contactors & Starters and Solid State Overload Relays

Class 8502, 8536, 8538, 8539, 8702, 8736, 8738, 8739, 8810, 8811 and 8812

Overload
Relays
 Single Phase:
  Types SB–SD (Sizes 0–2)b
Two Element—For 2 Phase Only
Types SB–SD (Sizes 0–2)
Three Element
Types SB–SD (Sizes 0–2)
Type SG (Size 5)
Type SH (Size 6)
Any
Any
Any
Three Element
Types SB–SD (Sizes 0–2)
Types SE–SF (Sizes 3 & 4)
Type SG (Size 5)
Type SH (Size 6)












Overload RelaysGeneral
Modify Size 3 Type SE starters with melting alloy overload relays to accept Type FB quick trip or SB slow trip thermal units and Size 4 Type SF starters to accept Type FB quick trip thermal units. (Rejects Type CC standard trip thermal units.)
b
Single phase bimetallic overload relays for Type S Sizes 0–2 require two (2) thermal units per starter.

Solid State Overload Relay Factory Modfications (Forms)

The solid state overload relay is available on NEMA Size 00–7.
For Class 8536, 8538, 8539, 8736, 8738, 8739 and 8810 devices.
3–9 A
6–18 A
9–27 A
15–45 A
30–90 A
45–135 A
90–270 A
180–540 A
270–810 A