SQUARE D JYT64721 Circuit Breaker Instruction Manual

SQUARE D JYT64721 Circuit Breaker

Undervoltage Trip (MN) and Shunt Trip (MX) for PowerPacT™ H-, J-, and L-Frame Circuit Breakers Retain for future use.
Before starting the installation read and understand all instructions.

Required for Installation

Note: I-Line circuit breakers require wiring harness, not provided.
Figure 1 MN / MX with Screw Connection

| | | S29386| 110–130 V~ 50/60 Hz
---|---|---|---|---
S29407| 220–240 V~ 50/60 Hz 208–277 V~ 60 Hz| S29387| 220–240 V~ 50/60 Hz 208–277 V~ 60 Hz
S29408| 380–415 V~ 50 Hz 440–480 V~ 60 Hz| S29388| 8 380–415 V~ 50 Hz 440–480 V~ 60 Hz
| | S29382| 12 V ⎓
S29410| 24 V ⎓| S29390| 24 V ⎓
S29412| 48 V ⎓| S29392| 48 V ⎓
S29414| 250 V ⎓| S29394| 250 V ⎓
| MN Wire harness| S434503
---|---|---
MX Wire harness| S434504

1 MN – Undervoltage trip

Figure 2 MN / MX with Spring Clamp Connection

| P29404| 24 V~ 50/60 Hz| P29384| 24 V~ 50/60 Hz
---|---|---|---|---
P29405| 48 V~ 50/60 Hz| P29385| 48 V~ 50/60 Hz
P29406| 110–130 V~ 50/60 Hz| P29386| 110–130 V~ 50/60 Hz
P29407| 220–240 V~ 50/60 Hz 208–277 V~ 60 Hz| P29387| 220–240 V~ 50/60 Hz 208–277 V~ 60 Hz
P29408| 380–415 V~ 50 Hz 440–480 V~ 60 Hz| P29388| 380–415 V~ 50 Hz 440–480 V~ 60 Hz
P29409| 525 V~ 50 Hz 600 V~ 60 Hz| P29389| 525 V~ 50 Hz 600 V~ 60 Hz
P29402| 12 V| P29382| 12 V
P29410| 24 V| P29390| 24 V
P29411| 30 V| P29391| 30 V
P29412| 48 V| P29392| 48 V
P29403| 60 V| P29383| 60 V
P29413| 125 V| P29393| 125 V
P29414| 250 V| P29394| 250 V
| MN Wire harness – spring clamp| P434503
---|---|---
MX Wire harness – spring clamp| P434504

1 MN – Undervoltage trip – spring clamp
2 Stranded end only.

Undervoltage Trip (MN) and Shunt Trip (MX) for PowerPacT™ H-, J-, and L-Frame Circuit Breakers

Precautions

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, CSA Z462, NOM 029-STPS or local equivalent.
• This equipment must be installed and serviced only by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors and covers before turning on power to this equipment.

Failure to follow these instructions will result in death or serious injury.

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

Installation

Cover Removal

1. Turn off all power supplying this equipment before working on or inside equipment.
2. Trip circuit breaker (Figure 3, a–c).
3. Remove any installed handle extension (d) if it will interfere with the enclosure door closing.
4. Remove access cover (e-f).
5. For I-Line circuit breakers only, install the wire harness following the instructions shipped with the wire harness

PowerPacT H- and JFrame Circuit Breaker Installation

1. Install undervoltage trip (MN) or shunt trip (MX) (Figure 4, a) into compartment labeled “MN UVR MX SHT”.
2. Install control wiring (b–c).
3. Replace access cover (d).
4. Replace Visi-Trip handle (e), note proper orientation.

Individually-Mounted Circuit Breakers

Figure 4

PowerPacT L-Frame Circuit Breaker Installation

1. Remove the clip (Figure 5, a).
2. Install the undervoltage trip (MN) or shunt trip (MX) (Figure 5, b-d) into the compartment labeled “MN UVR MX SHT”.
3. Install the clip (e).
4. Install the control wiring (f).
5. Replace the access cover (g) before operating the circuit breaker.

Figure 5

© 2012–2022 Schneider Electric All Rights Reserved

Update Accessory Label

Testing

Table 1

Kit Contents

breaker trips

• If accessory does not operate correctly, check wiring connection. If accessory is wired correctly, contact your local field sales representative.
  Note: Coil resistance for (MN) or (MX) coil can not be measured at accessory leads. /

Removal

1. Remove access cover (see “Cover Removal” on page 3).
2. Remove in reverse order of installation. Use screwdriver to remove MN/MX module (Figure 6, a).
3. Replace access cover (b).
4. Replace Visi-Trip handle if required, note proper orientation (Figure 6. c).

Fig 6

Figure 6

Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material.

Schneider Electric, Square D, and PowerPacT are trademarks owned by Schneider Electric Industries SAS or its affiliated companies. All other trademarks are the property of their respective owners.

Schneider Electric Limited Stafford Park 5 Telford TF3 3BL United Kingdom www.se.com/uk

Schneider Electric USA, Inc.
800 Federal Street Andover, MA 01810 USA 888-778-2733 www.se.com/us/en/

© 2012–2022 Schneider Electric All Rights Reserved

References

• P65Warnings.ca.gov
• p65warnings.ca.gov/
• se.cn - This website is for sale! - se Resources and Information.
• Schneider Electric Canada | Global Specialist in Energy Management and Automation
• Schneider Electric Mexico | Servicios de Renovación y Retrofit de Schneider Electric
• Schneider Electric USA | Global Specialist in Energy Management and Automation

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