Capital Electric, A Sonepar Company

NEMA DP & Lighting Contactor Selector ENCLOSED · NEMA 1 / 3R / 4X / 12

Square D definite purpose contactors in Class 9991 enclosures (8910), DPSG starters (8911) and enclosed lighting contactors with cover options (8903 Type L & S)

1Product

2Load

3Enclosure

4Device options

Need an open (panel-mount) device? Use the NEMA DP & Lighting Contactor Open Selector. Motor starters in NEMA sizes: NEMA Enclosed Starter Selector.

✓Selection

Choose a product and enter the load to see the device.

5Account manager

NotesOptional. Added to the email, copied list and parts list file. Not saved on this device.

Click your nearest branch on the map, or choose from the list. Email sends your parts list to that person.

Reference tables

Class 8910 contactors and Class 9991 enclosures Type DP, DPA with DPG1 / DPG2 / DPG3

Digest Tables 16.224–16.227 and 16.229. Replace ●●● with the coil code. Class 9991 DPG enclosures are NEMA 1 general purpose. The 90 A DPA has no Class 9991 enclosure. 9991DPG1 fits 20–40 A DP / DPA, DPG3 fits 60–75 A DPA (se.com).

Class 8911 Type DPSG starters NEMA 1 enclosed

Digest Table 16.237. Melting alloy overload block; heaters ordered separately. Holding-circuit contacts aren't included: add a 9999D10 auxiliary module for 3-wire control. The DPSG cover kits (8911DPB1 Start-Stop, 8911DSS1 HOA) are discontinued.

DPSG thermal units (heaters) Tables 135, 145 and 146

Motor FLC ranges in amps, standard trip. 1 T.U. = single-phase starters (DPSG32 / 42 / 52), 3 T.U. = three-phase (DPSG33 / 43 / 53). The 30 A column combines the 20, 25 and 30 A sections of Table 135. Table 135 prints 6.95–7.99 A for B10.2 (1 T.U.), which overlaps B11.5; the tool uses 6.95–7.79 A. For 1.0 service factor motors, pick the heater at 90% of the motor FLA.

Class 8903 Type L and LX lighting contactors enclosed, 30 A

Digest Table 16.193. 2, 3, 4, 6, 8, 10 and 12 poles (codes 20, 30, 40, 60, 80, 1000, 1200). 30 A ballast / 20 A tungsten per pole, LED ready. NEMA 3R can't take control transformer forms. N.C. poles: N.O. count then N.C. count, for example 8903LG62V02.

Class 8903 Type S lighting contactors enclosed, 30–600 A

Digest Table 16.198. Type numbers: electrically held 1–4 = 2–5 poles; mechanically held 10–13 (30–200 A), 13–14 (300 A), 16–17 (400 A), 18–19 (600 A); glass-polyester 4X uses 21–24 (electrically held) and 31–34 (mechanically held). 400–600 A electrically held are sold with Form S (separate control), for example 8903SYG2V02S; the built-in transformer version (for example 8903SYG2V81) is discontinued. Type S in the 4X glass-polyester enclosure (for example 8903SMW22V02) is discontinued. 800 A (SJ) isn't listed on se.com. NEMA 4X for 30–300 A is brushed stainless steel.

Lighting contactor factory forms Table 16.206

Forms are added to the end of the catalog number in alphanumeric order. Some forms aren't UL listed; if a UL label is required, check with the Customer Care Center. Combination lighting contactors and Night-Master are coming in Rev 1.1.

Control transformer voltage codes Table 16.207

With Form FF4T, the transformer code replaces the coil code. Order example from the Digest: 8903SMG2V81FF4T (480 V primary, 120 V secondary).

Coil voltage codes

Digest Tables 16.195, 16.197, 16.223 and 16.241. Definite purpose and lighting contactors use different codes for 24 V and 208–240 V.

NEC motor full-load current Tables 430.248 & 430.250

Use the table current to size the device and conductors (NEC 430.6(A)(1)). Set overloads from the motor nameplate FLA (NEC 430.6(A)(2)).

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