THQL2170 2-Pole 70A 120V/240V 10kA Q-Line Circuit Breaker
THQL2170 2-Pole 70A 120V/240V 10kA Q-Line Circuit Breaker
THQL2170 2-Pole 70A 120V/240V 10kA Q-Line Circuit Breaker
THQL2170 2-Pole 70A 120V/240V 10kA Q-Line Circuit Breaker
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THQL2170 2-Pole 70A 120V/240V 10kA Q-Line Circuit Breaker
THQL2170 2-Pole 70A 120V/240V 10kA Q-Line Circuit Breaker
THQL2170 2-Pole 70A 120V/240V 10kA Q-Line Circuit Breaker
THQL2170 2-Pole 70A 120V/240V 10kA Q-Line Circuit Breaker
THQL2150 2-Pole 50A 120V/240V 10kA Q-Line Circuit Breaker
THQL2150 2-Pole 50A 120V/240V 10kA Q-Line Circuit Breaker
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Type CHF 1-Pole Breaker 15A-30A with Trip Flag
Type CHF 1-Pole Breaker 15A-30A with Trip Flag

THQL2170 2-Pole 70A 120V/240V 10kA Q-Line Circuit Breaker

BCD Curve:C
Type:MCB
Brand Name:Newtrend or OEM brand
Place of Origin:China
Model Number:THQL
Rated Frequency (Hz):50/60hz
Protection:LSI
Breaking Capacity:10kA
Rated Voltage:100V,220V,230V,240V
Poles
Rated Current
SKU: 1600800902977 Category:
Description

THQL 2P 120V 240V THQL2120 THQL2130 THQL2140 THQL2150 THQL2160 THQL2170 THQL2180 THQL2190 THQL21100 Plug in circuit breaker

 

Type THQL
Number of Poles 1P 2P 3P
Rated Current 15, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100A
Maximum Voltage 120/240V 120/240V 240V
Breakage Capacity 10kA 10 kA 10 kA
Protection Thermal Magnetic
Connection Plug-In

 

THQL
Circuit Breaker		 AMP (A) 1 Pole 2 Pole 3 Pole
120/240V 120/240V 240V
15A THQL1115 THQL2115 THQL32015
20A THQL1120 THQL2120 THQL32020
25A THQL1125 THQL2125 THQL32025
30A THQL1130 THQL2130 THQL32030
35A THQL1135 THQL2135 THQL32035
40A THQL1140 THQL2140 THQL32040
45A THQL1145 THQL2145 THQL32045
50A THQL1150 THQL2150 THQL32050
60A   THQL2160 THQL32060
70A   THQL2170 THQL32070
80A   THQL2180 THQL32080
90A   THQL2190 THQL32090
100A   THQL21100 THQL320100
110A   THQL21110 THQL32090
125A   THQL21125 THQL320100

 

Additional information
Weight 2 kg
Dimensions 25 × 25 × 25 cm
Rated Current

70A
Poles

2P
Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for THQL2170 2-Pole 70A 120V/240V 10kA Q-Line Circuit Breaker.

📥
Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.
Request Official Datasheet (PDF)
📐
2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.
Request CAD Model
Certified Standards: IEC 60898-1, IEC 60947-2, CE, RoHS, ISO 9001:2015
Manufacturer: Shanghai Newtrend Electric Co., Ltd. (Global Export Compliance)
Engineering Support: 24-hour response for custom voltage ratings, auxiliary contacts, and technical consulting.
Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

Voltage & Load Sizing

How to verify rated operational voltage, frequency, and load duty cycle?

A

Verify that the nominal line voltage (AC 230V single-phase or 400V/415V/690V three-phase at 50/60Hz, or DC voltage ratings) falls within the continuous maximum operating limits of the device. Check duty cycle ratings (continuous vs intermittent duty) to ensure thermal stability under full load.

Protection & Environment

What ingress protection (IP Rating) and environmental enclosures are recommended?

A

For clean indoor electrical rooms, standard IP20 modular DIN-rail housings are recommended. For outdoor, industrial washdown, or dusty environments, mount components inside weatherproof enclosures rated IP65/IP66 with UV-resistant polycarbonate or powder-coated steel enclosures equipped with compression cable glands.

Selectivity & Grading

How to ensure upstream and downstream coordination in power distribution boards?

A

Ensure proper discrimination by grading current thresholds and tripping time delays: upstream devices should have higher current ratings and intentional short-time delays (Class S), allowing downstream branch MCBs to clear localized faults without blacking out the entire facility.

Installation & Mounting

What mounting rails, busbars, and spatial clearances are required?

A

Components mount on standard symmetrical 35mm DIN rail (EN 60715 / TH35-7.5) or backplate screw fixings. Maintain recommended top/bottom ventilation gaps (typically 30–50mm) to ensure unrestricted air convection, and use standard pin/fork comb busbars to minimize contact resistance and wiring errors.

Conductor & Torque Sizing

What conductor sizes and terminal tightening torques should be applied?

A

Select copper or aluminum conductor cross-sections complying with IEC 60364-5-52 current-carrying capacity tables based on continuous load. Always use a calibrated torque screwdriver or torque wrench to tighten terminal screws to the manufacturer-specified torque to prevent hot-spot degradation and loose connections.

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