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C16B4TM160
Schneider C16B4TM160 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Schneider C16B4TM160 is a fixed-mount ComPacT NSX160B circuit breaker designed for AC electrical distribution applications. It features four poles with full protection on all four conductors, including the neutral, and uses a 160 A TM-D thermal-magnetic trip unit to provide overload and short-circuit protection.
Rated for operation at up to 690 V AC, the C16B4TM160 offers an ultimate breaking capacity of 25 kA at 380/415 V AC. Its adjustable thermal pick-up range of 0.7 to 1 times the rated current enables application-specific overload settings, while the instantaneous magnetic protection is fixed at 1,250 A. The unit supports front connections, horizontal or vertical backplate mounting, and includes five slots for electrical auxiliaries. It measures 140 mm wide, 161 mm high and 86 mm deep, with an IP40 enclosure rating.
Rated for operation at up to 690 V AC, the C16B4TM160 offers an ultimate breaking capacity of 25 kA at 380/415 V AC. Its adjustable thermal pick-up range of 0.7 to 1 times the rated current enables application-specific overload settings, while the instantaneous magnetic protection is fixed at 1,250 A. The unit supports front connections, horizontal or vertical backplate mounting, and includes five slots for electrical auxiliaries. It measures 140 mm wide, 161 mm high and 86 mm deep, with an IP40 enclosure rating.
| Specification | Description |
|---|---|
| Manufacturer | Schneider Electric |
| Part Number | C16B4TM160 |
| Product Type | Moulded-case circuit breaker |
| Product Range | ComPacT NSX, new generation |
| Device Series | NSX160B |
| Application | Electrical distribution |
| Rated Current | 160 A at 40 °C |
| Rated Operational Voltage | Up to 690 V AC |
| Network Frequency | 50/60 Hz |
| Number of Poles | 4 |
| Protected Poles | 4D, including fully protected neutral |
| Neutral Position | Left |
| Trip Unit | TM-D thermal-magnetic |
| Protection Functions | Thermal overload and magnetic short-circuit protection |
| Thermal Pick-up Adjustment | Adjustable from 0.7 to 1 × In |
| Instantaneous Pick-up | Fixed at 1,250 A |
| Breaking Capacity at 220/240 V AC | 40 kA |
| Breaking Capacity at 380/415 V AC | 25 kA |
| Breaking Capacity at 440 V AC | 20 kA |
| Breaking Capacity at 500 V AC | 15 kA |
| Performance Level | B, 25 kA at 415 V AC |
| Rated Insulation Voltage | 800 V AC |
| Impulse Withstand Voltage | 8 kV |
| Utilisation Category | Category A |
| Isolation Suitability | Suitable for isolation in accordance with EN/IEC 60947-2 |
| Control Type | Toggle |
| Mounting Method | Fixed, backplate mounting |
| Mounting Orientation | Horizontal or vertical |
| Connection Position | Front, upper and lower |
| Connection Pitch | 35 mm |
| Auxiliary Slots | 5 |
| Earth-Leakage Protection | Not included |
| Mechanical Endurance | 40,000 cycles |
| Power Dissipation | 13.95 W per pole |
| Protection Rating | IP40 |
| Impact Resistance | IK07 |
| Pollution Degree | 3 |
| Operating Temperature | -25 to 70 °C |
| Storage Temperature | -50 to 85 °C |
| Relative Humidity | 0 to 95% |
| Operating Altitude | Up to 2,000 m without derating; 2,000–5,000 m with derating |
| Dimensions | 140 mm W × 161 mm H × 86 mm D |
| Net Weight | 2.6 kg |
| Compliance Standard | EN/IEC 60947-2 |
| Commodity Code | 853620 |
What type of circuit breaker is this device?
It is a fixed ComPacT NSX160B moulded-case circuit breaker designed for AC electrical distribution. It uses a TM-D thermal-magnetic trip unit to provide overload and short-circuit protection.
What is the rated current of this circuit breaker?
The rated current is 160 A at an ambient temperature of 40 °C.
How many poles does the circuit breaker have?
The C16B4TM160 has four poles and a 4D protected-pole configuration, meaning that all four poles, including the neutral, are fully protected.
What is the maximum rated operational voltage?
The rated operational voltage is up to 690 V AC at 50 or 60 Hz.
What breaking capacity does the circuit breaker provide?
Its ultimate short-circuit breaking capacity is 25 kA at 380/415 V AC. The corresponding values are 40 kA at 220/240 V AC, 20 kA at 440 V AC and 15 kA at 500 V AC.
What protection functions are included?
The TM-D trip unit provides LI protection: thermal protection against sustained overloads and magnetic protection against short circuits. Integrated earth-leakage protection is not included.
Can the thermal trip setting be adjusted?
Yes. The long-time thermal pick-up setting can be adjusted from 0.7 to 1 times the rated current, providing an approximate setting range of 112 A to 160 A.
What is the instantaneous short-circuit trip setting?
The instantaneous magnetic protection setting is fixed at 1,250 A.
Is the neutral pole protected?
Yes. The neutral is positioned on the left and protected at 1 times the selected thermal setting as part of the four-pole, 4D configuration.
How is the circuit breaker mounted and connected?
This is a fixed circuit breaker intended for backplate mounting. It can be installed horizontally or vertically, with front connections on both the incoming and outgoing sides.
What are the device dimensions and weight?
The unit measures 140 mm wide, 161 mm high and 86 mm deep. Its net weight is approximately 2.6 kg.
What environmental conditions can the device operate in?
The specified operating temperature range is -25 °C to 70 °C, with relative humidity from 0% to 95%. It can operate up to 2,000 metres without derating and from 2,000 to 5,000 metres with derating.
What ingress and impact protection ratings apply?
The circuit breaker has an IP40 ingress protection rating and an IK07 mechanical impact rating when assessed under the stated IEC standards.
Which electrical standard does the circuit breaker conform to?
The device conforms to EN/IEC 60947-2 and is suitable for isolation in accordance with that standard.
What are the insulation and impulse withstand ratings?
The rated insulation voltage is 800 V AC, while the rated impulse withstand voltage is 8 kV.
How many electrical auxiliary slots are provided?
The circuit breaker provides five slots for compatible electrical auxiliaries.
What is the expected mechanical endurance?
The specified mechanical endurance is 40,000 operating cycles. Electrical endurance varies according to operating voltage and load conditions.
What is the power dissipation per pole?
The stated power dissipation is 13.95 W per pole under the specified operating conditions.
- Main circuit protection in low-voltage electrical distribution panels
- Overload and short-circuit protection for three-phase systems with a neutral conductor
- Incoming supply protection for commercial and industrial switchboards
- Protection of machinery power distribution circuits
- Isolation and switching of AC electrical supplies
- Protection of feeders supplying motors, control panels and production equipment
- Distribution board protection in factories, warehouses and large commercial buildings
- Power circuit protection in infrastructure and utility installations
- Fixed backplate-mounted applications requiring a four-pole circuit breaker
- Installations requiring fully protected neutral switching and a 160 A rated current
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
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Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
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6 months ago
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