Capital Electric, A Sonepar Company

NEMA DP & Lighting Contactor Selector OPEN · Panel mount

Square D definite purpose contactors (8910), starters (8911), reversing / hoist contactors (8965) and lighting contactors (8903 Type L & S)

1Product

2Load

3Device options

All coils are AC. The coil can be wired to any control source at that voltage.

Motor starter or contactor in NEMA sizes? Use the NEMA Open Starter Selector.

✓Selection

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

4Account 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 definite purpose contactors Type DP compact and Type DPA

Digest 179 Tables 16.224–16.227. Replace ●●● with the coil code. Above 240 V, all lines must be switched. Type DPA HP ratings at 460 / 575 V are shown as 460 V / 575 V where they differ. DPA34 is also offered with 2 N.O. + 2 N.C. poles (Form Y392). Box lugs are standard on 40 A and larger.

Class 8911 definite purpose starters Type DPSO open

Digest Table 16.237. Melting alloy overload block; heaters ordered separately. No 4-pole DPS. Holding-circuit contacts aren't included: add a 9999D10 auxiliary module for 3-wire control. Enclosed NEMA 1 versions are Type DPSG.

DPS thermal units (heaters) Tables 136, 147 and 148

Motor FLC ranges in amps, standard trip. 1 T.U. = single-phase starters (DPSO32 / 42 / 52), 3 T.U. = three-phase (DPSO33 / 43 / 53). The 30 A column combines the 20, 25 and 30 A sections of Table 136. Table 147 prints B5.25 for 4.50–4.76 A; the thermal unit sold is B6.25. For 1.0 service factor motors, pick the heater at 90% of the motor FLA.

Class 8965 reversing / hoist contactors Type DPR

Digest Table 16.265. For rapid operation (jogging duty), use the next larger size. Auxiliary modules: order two, one for each side, or factory Forms X1010, X0101, X1111, X2020.

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

Digest Table 16.193. 30 A ballast / 20 A tungsten per pole, LED ready. N.C. poles: the catalog number shows the N.O. count then the N.C. count, for example 8903LO62V02 (6 N.O. + 2 N.C.); over 8 poles a 0 separates them, for example 8903LO406V02. Type LX: 2, 4 or 6 N.C. poles. Power pole kits 8903L1R, L3L and L3R add poles to LO60 / LO80 / LXO60 / LXO80.

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

Digest Table 16.198. 400 and 600 A electrically held devices come with common control and a control transformer (Form FF4T) as standard; this tool orders Form S (separate control), for example 8903SYO2V02S. 800 A (SJO) isn't listed on se.com. No 24 V coils on 200 A and up.

Coil voltage codes

Digest Tables 16.195, 16.197, 16.223, 16.241 and 16.268. 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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