SQUARE D 8702SEO1V07 NEMA Contactor Instructions

Instruction Bulletin

Replaces: 30072-013-01D 3/00

AC Magnetic Contactors and Starters

Class	Type	Series	Size	Poles (P)
8502 & 8536	SE	A	3	2 & 3

Contents hide

6 SHORT-CIRCUIT PROTECTION

7 DISTANT CONTROL

8 ORDERING INSTRUCTIONS

9 Documents / Resources

9.1 References

INTRODUCTION

This bulletin provides assembly, modification, and parts ordering instructions.

Figure 1: Contactor and Starter Assembly

DANGER

HAZARDOUS VOLTAGE
Disconnect all power before working on equipment.
Failure to follow this instruction will result in death or serious injury.

AC Magnetic Contactors and Starters

AUXILIARY CONTACTS
All contactors and starters feature a normally open (N.O.) holding circuit contact. N.O. or normally closed (N.C.) auxiliary contacts can be added in the field. Table 5 lists Class and Type.
Bulletin 30072-013-21 and the Square DDigest contain application information.

COVER-MOUNTED CONTROL UNITS
NEMA Type 1 general purpose enclosures with slip-on or hinged covers contain knockouts for field addition of the kits listed in Table 1.

Table 1 Field Modification Kits, Class 9999

Kit	Type	Form
Push button, Start-Stop	SA2	A
Push button, On-Off	SA10	A3 ado
Selector switch, Hand-Off-Auto	SC2	C -auto
Selector switch, On-Off	SC22	C6 pagado
Red pilot light (slip-on cover)	SP4R	P1 ;lizante)
Red pilot light (hinged cover)	SP14R	P1 sagrada)

OVERLOAD RELAYS

A melting alloy overload relay is standard and incorporates one or three thermal units. Its contact unit (item 7 in Figure 1) is available with a N.O. or N.C. isolated alarm contact, in addition to the standard N.C. contact. The contact unit with alarm circuit contacts is fieldinstallable (see Table 5).
Ambient-temperature compensated bimetallic overload relays, incorporating three thermal units, are available as an optional feature (Form Y59).
Overload relays are not field-repairable. Do not disassemble them.

TERMINALS

Use only copper wire on device power and control terminals. Box lugs are suitable for wire sizes 14–1/0 AWG (2.5 –50 mm²). Pressure wire controlterminals are suitable for wire sizes 16–12 AWG (1.5–4 mm²), solid or stranded.

INSPECTING AND REPLACING CONTACTS
Discoloration and slight pitting do not harm contacts. Do not file contacts; this wastes contact material. Replace contacts (item 5 in Table 5) only when worn thin.
To inspect or replace contacts, disconnect all power. Do not remove any wiring. Loosen the four screws (D) holding the contact actuator to the contact block. Lift the contact actuator to expose the contacts.

MANUAL OPERATION

WARNING

UNINTENDED EQUIPMENT OPERATION
Disconnect all power before manually operating the equipment to avoid contact arcing and unexpected load energization.
Failure to follow this instruction can result in death, serious injury, or equipment damage.

Manually operate the contactor or starter with a screwdriver by pushing the step on the outside of the contact carrier.

COIL REPLACEMENT

To remove the coil, loosen the two captive cover screws (A). Disconnect the wires from the coil terminals and remove the cover. Loosen the two screws (B) holding the magnet in place.
Remove the coil and magnet. Manually operate the contact carrier and remove the armature. Separate the coil from the magnet.
To replace the coil, assemble the magnet, coil, and armature, then insert the complete unit. Approximately 3/8 in. of space should exist between the top, outside surface of the coil and the inside surface of the magnet. If this space does not exist, the magnet may be loose and out of place. To properly position the magnet, grasp the coil firmly and slide it down toward the armature until the magnet falls into place.
Before installing the cover, manually operate the device as described in “Manual Operation” to ensure that all parts function properly.

ASSEMBLY
Figure 1 illustrates the contactor or starter assembly. Table 2 and the deviceinstructions provide factory recommended torques for mechanical, electrical, and pressure wire connections. Use these torques to ensure proper device operation.

SHORT-CIRCUIT PROTECTION

Provide branch-circuit overcurrent protection for starters, referring to instructions supplied with the thermal unit selection table. Provide branchcircuit overcurrent protection for contactors (Class 8502 or 8702) in accordance with the National Electrical Code
(NEC) and local electrical codes. Do not exceed the maximum protectivedevice ratings listed in Table 3.

Table 2 Factory-Recommended Tightening Torques

Item Art.	Description	Torque
Item Art.	Description	lb-in	N.m
A	Cover screw (2 per cover)	24-28	2,7-3,1
B	Screw post (2 per magnet)	65-75	7,3-8,5
C	Coil terminal pressure wire connector (2 per coil)	[1]	[1]
D	Power plant screw (4 per device)	40-45	4,5-5,0
E	Auxiliary contact pressure wire connector (2 per contact)	[1]	[1]
F	Stationary contact fastener (2 per pole)	44-50	5,0-5,6
G	Lug screw (2 per pole)	[I]	[I]
H	Lug retaining screw (2 per pole)	44-50	5,0-5,6
	Control circuit pressure wire connector (1 per pole)	[1]	[1]
K	Auxiliary contact fastening screw (1 per contact)	13-16	1,5-1,8
M	Overload relay fastening screw (3 per overload block)	24-28	2,7-3,1
N	Overload switch module fastening screw (1 per module)	9-12	1,0-1,3
0	Switch module pressure wire connector (2 per module standard; 4 per module with alarm circuit contact)	[1]	[1]
P	Overload-to-contactor fastening screw (3 per device)	44-50	5,0-5,6
0	Thermal unit fastening screw (2 per pole)	90-100	10-11,3
R	Lug retaining screw	44-50	5,0-5,6

[1] See instructions supplied with the device.

Provide overcurrent protection for control circuits in accordance with the NEC and/or other applicable electrical codes. For applications requiring compliance with I.E.C. 947-5-1, use only Class CC fuses or better, 30 A maximum.

Table 3 Maximum Ampere Ratings

Maximum Voltage	Class K5, RK5 or RK1 Fuse [1]	Class J or T Fuse	Inverse-Time Circuit Breaker
600 V~	100 A	200 A	125 A
250 V~	125 A	200 A	125 A

[1] Time delay fuse may be required.

DISTANT CONTROL

Depending upon the voltage, wire size, and number of control wires used, series impedance or shunt capacitance may limit the maximum distance of the wire run for remotely operated contactors and starters. If distances to start or stop stations exceed those listed in Table 4, analyze the wire-run configuration and materials. For further information, request data bulletin M-379 from D-FAX (document #1188), the Square D website (www.squared.com), or your local Square D field office.

Table 4 Maximum Control Distance

Coil Voltage @ 60 Hz	Copper Wire
	14 AWG (2,08 mm2)		10 AWG (5,26 mm2)
	ft	m	ft / pies / pieds	m
120 V- (2/3-wire) (2/3 hilos) (2/3 fils)	360	110	845	258
240 V- (2-wire) (2 hilos) (2 fils)	1400	427	1300	397
240 V- (3-wire) (3 hilos) (3 fils)	990	302	655	200
480 V- (2-wire) (2 hilos) (2 fils)	495	151	325	99
480V- (3-wire) (3 hilos) (3 fils)	245	174	160	48

ORDERING INSTRUCTIONS

Specify the quantity, the part number or class and type, and the part description, giving complete nameplate data of the device (e.g., one armature and magnet kit 31074-931-50 for a Class 8536 Type SEO1, Series A starter).

Table 5: Parts List

Item Art	Description	Part Number	Qty.
Item Art	Description	Part Number	2P	3P
1 II)	Armature and magnet kit	31074-931-50	1	1
2	Coil	See Table 6	1	1
3	Auxiliary contact 1 N.O. 1 N.C. 1 N.O. and 1 N.C.	Class 9999 Type SX6 Type SX7 Type SX8	— — —	— — —
4	Holding circuit contact 1 N.O.	Class 9999 Type SX6	1	1
5	Contact kit	Class 9998 Type SL6 Type SL7	1 (4) 141	1
6 612)	Melting alloy overload relay assembly (includes item 7) 1 thermal unit 3 thermal units Bimetallic overload relay, Form Y59-3 thermal units	Class 9065 Type SD011 Type SD012 26005.11000	1 1 (4)	— 1 3
7 7 (2)	Melting alloy overload contact unit Melting alloy overload contact unit w/ alarm circuit N.O. alarm contact N.C. alarm contact	Class 9998 Type SO1 Class 9999 Type SO4 Type SO5	1 — —	1 — —
8	Reset bar for melting alloy overload relay	31075.008-01	1	1
9	Housing-barrier assembly (includes item 10)	31074-112-51	1	1
10	Drop-out pad	31091-157-01	2	2
11	Cover only (nameplate not included)	31074-054-01	1	1
A	Cover screw	21916.16281	2	2
B	Screw post	31074-048-50	2	2
C	Coil terminal pressure wire connector	31051-007-50	2	2
G	Lug assembly	25050.94000	4	6
H (3)	Lug retaining screw (5/16-18 x 518)	21915.20200	4	6
K	Auxiliary contact fastening screw	21918-14161	—	—
M	Overload relay fastening screw	21911-16120	3	3
0	Switch module pressure wire connector	21910.12095	—	—
P	Overload-to-contactor fastening screw (5/16.18 x 1/2)	21911-20160	2	3
0	Thermal unit fastening screw (5/16-18 x 7/8)	21943-22281	4	6
R	Lug retaining screw (1/4-20 x 7/16)	21915.20140	2	3

[1] When ordering the armature and magnet kit (31074-931-50) for a contactor orstarter that contains an armature assembly (item 1) incorporating two rubber bumpers (item 1a), order a housing-barrier assembly (item 9) for installation on the contactor or starter.
[2] Not shown.
[3] Used on the line and load sides of a contactor; used on the line side only of a starter.
[4] Not available.

The complete coil part number consists of the prefix followed by the suffix (e.g., for 120 V 60 Hz coil, select 31074-400-38). When ordering replacement coils, give the part number, voltage, and frequency of the coil being replaced.

Table 6 : Magnet Coil Part Numbers

Coil Prefix	Hz	Coil Suffix														VA
Coil Prefix	Hz	24 V∼	110 V∼	120 V-	120/ 240 V∼	208 V∼	220 V∼	240 V∼	240/ 480 V∼	277 V∼	380 V∼	440 V∼	480 V∼	550 V∼	600 V∼	Inrush	Sealed
31074-400	60	16	Use 120 V∼	38	[H]	44	Use 240 V∼	47	[i]	49	53	Use 480 V∼	57	Use 600 V∼	60	700	46
31074-400	50	17	38	39	[2]	N/A	47	48	[2]	N/A	54	57	58	60	61	678	47

[1] Dual voltage coil: Order 120/240 V 60 Hz as 31074-402-02. Order 240/480 V 60 Hz as 31074-402-04.
[2] Consult the local Square D sales office.

Electrical equipment should be serviced only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material. This document is not intended as an instruction manual for untrained persons.

California Proposition 65 Warning—Lead and Lead Compounds

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov.

All trademarks are the property of Schneider Electric SE, its subsidiaries, and affiliated companies.
Schneider Electric USA, Inc.
800 Federal Street
Andover, MA 01810 USA
888-778-2733
www.schneider-electric.us

Documents / Resources

SQUARE D 8702SEO1V07 NEMA Contactor [pdf] Instructions
8702SEO1V07, 8702SEO1V07 NEMA Contactor, NEMA Contactor, Contactor

References

User Manual