Factory Modifications (Forms)

Class 8903 / Refer to Catalog 8903CT9701

Factory Modifications (Forms)

note

If a UL label is required, consult the Customer Care Center at 1-888-778-2733. Some Forms are not UL Listed.

Standard Equipment dimensions and enclosure construction may not apply when certain special features are added. Such cases should be referred to the factory with a complete description when precise dimensions are required.

Lighting Contactor Forms (Factory Modifications)

Description

Form
Letter

NEMA
Enclosure
Type

Used On

Rating (A)

Std.

Combo

Night-
Master
30–200 A

30

Type L

30

60

100

200

300

400, 600, 800

Elec.
Held

Mech.
Held

Elec.
Held

Mech.
Held

On-Off push button(momentary contact)

A3

1

Y

Y

Y

Y

Y

Y

Y

Y

Y

A3

3R, 4, 12

Y

Y

Y

Y

Y

Y

Y

Y

Y

On-Off push button (with holding circuit interlock)

A12

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Hand-Off-Auto selector switch.
To substitute a key operated selector switch, use Form C33 and specify positions, legend marking, and key removal. This form must be used with another selector switch form (example: CC33).

C

1

Y

Y [1]

Y

Y [1]

Y

Y

Y

Y

Y

Y

Y

C

3R, 4, 12

Y

Y [1]

Y

Y [1]

Y

Y

Y

Y

Y

Y

Y

Y

On-Off selector switch.
To substitute a key operated selector switch, use Form C33 and specify positions, legend marking, and key removal. This form must be used with another selector switch form (example: C33C6).

C6

1

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

C6

3R, 4, 12

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Control circuit fuse (1 fuse)

F

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Control circuit fuses (2 fuses)

F4

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Control circuit transformer standard capacity 50/60 Hz

Primary Fuses

Secondary Fuses

Transformer capacity

2   [2]

0

Std.

F4T

1, 4, 12

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y[3]

Y[4]

2

1

Std.

FF4T

1, 4, 12

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y[3]

Y[4]

2

1

100 VA Additional

FF4T11

1, 4, 12

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y[3]

Y[3]

Y[4]

2

1

200 VA Additional

FF4T12

1, 4, 12

Y

Y

Y

Y

Y

Y[3]

Y

Y

Y[3]

Y[3]

Y[3]

Y[4]

2

1

300 VA Additional

FF4T13

1, 4, 12

Y

Y

Y

Y

Y

Y

Y[3]

Y[3]

Y[3]

Y[3]

Y[3]

Y[4]

Noise reduced enclosure and shock mounted panel

G4

Any

Y

Y

Y

Y

Y

Y

Y

Y

Addition of photoelectric receptacle

G10

1 [5] , 3R, 12

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Addition of photoelectric receptacle with photo-cell

G101

1 [5] , 3R, 12

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Addition of photoelectric receptacle and relay (R6)[6]

G10R6

1 [5] , 12

Y

Y

Y

Y

Y

Y

Y

Y

Y

 With photo-cell installed   [6]

G101R6

1 [5] , 12

Y

Y

Y

Y

Y

Y

Y

Y

Y

Addition of terminal blocks (other than standard). The designation xx represents the number of terminals needed. Available in multiples of 5 only.

 Wired

G56xx

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

 Unwired

G50xx

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Addition of 24 hour time clock (120–277 V only)

K14

1, 4, 12

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Addition of 24 hour time clock w/day omission (120–277 V)

K141

1, 4, 12

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Addition of 7 day time clock (120–277 V)

K142

1, 4, 12

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Addition of 24 hour time clock (120–277 V only)

K14

3R

Y

Y

Y

Y

Y

Addition of 24 hr time clock w/skip day (120–277 V)

K141

3R

Y

Y

Y

Y

Y

Addition of 7 day time clock (120–277 V)

K142

3R

Y

Y

Y

Y

Y

Addition of solid neutral terminal block

N

1, 4, 12

Y

Y

Y

Y

Std.

Y

Y

Y

Y

Y

Y

Y

Red pilot light

P1

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Two or more lights [7] (each)

P

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Red push-to-test pilot light

P21

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

 Interlock necessary for pilot light
 one needed for each additional pilot light

[8]

Any

Y

Y

Y

Y

Y

[9]

Y

Y

Y

Y

Y

Y

Two-wire interface for mechanically held  [6]

R6

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Addition of undervoltage and overvoltage relay

R46

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Three wire control for long distance applications[6]

R62

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Auxiliary contacts (specify number of N.O. + N.C.)

X

Any

Y

Y

Y

Y

Y

[9]

Y

Y

Y

Y

Y

Y

Auxiliary electrical interlock installed on disconnect switch or circuit breaker operating mechanism

Y74

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Coil transient suppressor (120 Vac only)

Y145

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Addition of lightning arrestor

Y1532

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Substitute copper only lugs for standard

Y157

Any

Y

Y

Y

Y

Y

Y

Y

Y

Y

Y

Voltage Codes

Voltage at 60 Hz (primary–secondary)

Code

Order Example

120–24
208–120
240–24
240–120
277–120
480–24
480–120
480–240
600–120

V89
V84
V82
V80
V85
V83
V81
V87
V86

 

You have device 8903SMG2V02. V02 means that you need a coil voltage of 120-60/110-50, wired for separate control.

You want to add Form FF4T, with transformer voltages of 480 V primary, 120 V secondary. The new and complete Class, Type, Voltage Code and Form number are:

 

Class

Type

Voltage Code

Form [10]

 

8903

SMG2

V81

FF4T

Footnotes

  1. When ordering Form C on mechanically held devices, you must also includeForm R6.
  2. Transformer voltage codes.
  3. Single primary voltage must be specified using the codes shown in Voltage Codes.
  4. Mechanically held only. Electrically held device has a control circuit requiring a 120 V secondary, therefore, a transformer is supplied. The transformer comes wired to L1 and L2 unless Form S is called for. It is supplied with two primary and one secondary fuse.
  5. Photocell mounted on a NEMA 1 enclosure is designed for indoor areas which rely on natural light. Addition of the photocell does not make the enclosure suitable for outdoor (NEMA Type 3R) installations.
  6. Available for 24 V, 120 V, 240 V, 277 V and 480 V applications only.
  7. For electrically held enclosed devices, the first pilot is wired in parallel with the coil. Operating interlocks are required for all additional pilot lights. Mechanically held devices require operating interlocks for all pilot lights.
  8. Do not use Form X for any interlock wired in series with a pilot light, but do specify how the pilot light and interlock are to be wired into the circuit.
  9. Electrically held 20 A multipole contactors cannot add interlocks. Additional poles can be used for the same function, however. Mechanically held (Type LX) provide one double throw auxiliary (or status) contact as standard.
  10. Form numbers should always be shown in alphabetical order.

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