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Square D QDP32070TM Molded Case Circuit Breaker
- 70A
- 3 Pole
- Bolt-On
Square D
QDP32070TM
Molded Case Circuit Breaker
Brand
Square D
SKU
QDP32070TM
Quantity
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Square D QDP32070TM - 70A 3 Pole Molded Case Circuit Breaker
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Description
Delivering 25kAIC short-circuit protection at 240VAC, this 70A three-pole breaker is engineered for heavy-duty industrial environments. It fastens securely into compatible panelboards, switchboards, and EZ Meter-Pak metering centers using a stud and tapped pad terminal configuration. As a functional substitute for the legacy Q23070, this PowerPacT Q-Frame device provides an 80% continuous current rating and features a reliable trip-free mechanism.Specifications
| Brand | Square D |
|---|---|
| Part Number | QDP32070TM |
| Series | QDP |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 208Y/120VAC, 25kA @ 240VAC |
| Frame Type | QDP |
|---|---|
| Terminal Type | Stud/Tapped Pad |
| For Use With | EZ Meter-Pak Meter Centers, Panelboards, Switchboards |
| Wire Gauge | 4 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Line Side Terminal Nuts, Load Side Lugs Included, Mounting Hardware |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, 80% Rated, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
7 answersWhat panels accept the QDP32070TM circuit breaker?
This unit-mount PowerPacT Q-Frame breaker is designed for use in compatible Square D EZ Meter-Pak Meter Centers, panelboards, and switchboards. It is not compatible with QO or Homeline residential load centers.
What is the difference between QDP, QBP, QGP, and QJP breakers?
The third letter in the Q-Frame catalog number indicates the short-circuit interrupting rating at 240V AC. The QDP series is rated at 25kAIC, while the QBP is 10kAIC, QGP is 65kAIC, and QJP is 100kAIC. They share the same physical dimensions and mounting footprint.
Can the QDP32070TM replace older Square D Q2 series breakers?
Yes, Square D PowerPacT Q-Frame circuit breakers, including the QDP32070TM, serve as direct functional replacements for legacy Q2 series devices.
How is the QDP32070TM mounted in an enclosure?
The QDP32070TM is a unit-mount circuit breaker featuring a stud and tapped pad terminal configuration. It bolts directly onto the bus in compatible enclosures and is not designed for I-Line group-mounted applications.
Is the QDP32070TM rated for 100% continuous current?
No, this breaker carries a standard 80% continuous current rating. In accordance with NEC guidelines, continuous loads operating for three hours or more should not exceed 56 amps, which is 80% of its 70A nominal rating.
How does the thermal-magnetic trip unit operate on the QDP32070TM?
The breaker features Long-Time (L) and Instantaneous (I) trip functions. The fixed thermal element responds to continuous overloads by heating a bimetallic strip, while the fixed magnetic element provides immediate tripping when it detects high-level short-circuit currents.
Does the QDP32070TM feature a trip-free mechanism?
Yes, this breaker incorporates a trip-free mechanism. This safety feature ensures the breaker will trip internally during an overload or short circuit, even if the operating handle is physically held in the ON position.
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