ABB / General Electric THJS3604 Molded Case Circuit Breaker
- 400A
- 3 Pole
- Unit Mount
Quantity
ABB / General Electric THJS3604 - 400A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered for heavy-duty industrial use, the GE THJS3604 is a 400-amp, 3-pole electronic trip circuit breaker. It provides highly accurate long-time and instantaneous (LI) protection for commercial systems. Designed to fit GE J-Frame enclosures and switchboards, this unit-mount MCCB serves as a critical legacy component. For future upgrades, it is replaced by the SGHA36AT0400 via retrofit solutions. Equipped with a Micro VersaTrip solid-state unit, it boasts 35 kAIC at 480VAC.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | THJS3604-R |
| Series | THJS |
| Amperage | 400A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | GE J-Frame Enclosures, Switchboards, Motor Control Centers |
| Wire Gauge | 6 AWG - 600 kcmil (Cu/Al) or (2) 2/0 AWG - 250 kcmil (Cu/Al) |
| Max Wire | 600 kcmil |
| Min Wire | 6 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Lug Kits, Alarm Switch |
|---|---|
| Accessories | Lugs not included (Requires TCAL43) |
| Standards | NEMA AB-1, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, Solid State Trip Unit, Interchangeable Trip Unit, HACR Rated |
Product FAQs
6 answersWhat is the modern replacement for the legacy GE THJS3604?
The THJS3604 is a discontinued GE J-Frame circuit breaker. For direct replacements, the GE SGHA36AT0400 is often used via retrofit solutions. For modern upgrades, ABB Tmax XT molded case circuit breakers can be installed using retrofit kits designed for legacy GE equipment.
Which lug kit is required for terminating wires on the THJS3604?
This breaker requires the TCAL43 lug terminal kit. The TCAL43 accommodates either one 6 AWG to 600 kcmil copper or aluminum wire, or two 2/0 AWG to 250 kcmil copper or aluminum wires per phase.
What type of trip unit is equipped on the THJS3604?
This breaker features a Micro VersaTrip solid-state electronic trip unit. It provides adjustable Long-Time and Instantaneous (LI) protection, allowing for precise coordination in commercial and industrial power systems.
What equipment is compatible with the THJS3604 circuit breaker?
The THJS3604 is a unit-mount, bolt-on circuit breaker designed specifically to fit legacy GE J-Frame enclosures, switchboards, and motor control centers.
Can the trip settings be adjusted on the THJS3604?
Yes, the electronic trip unit allows for adjustable Long-Time and Instantaneous (LI) settings. This adjustability ensures precise overcurrent and short-circuit protection tailored to specific electrical load requirements.
Does the THJS3604 provide ground fault protection?
No, the THJS3604 features an LI (Long-Time, Instantaneous) trip unit, which does not include integrated ground fault protection. If ground fault protection is required for your application, a different trip unit configuration or an external ground fault relay is necessary.
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