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SCHNEIDER Supplementary Protector: 20 A Amps, 14kA at 240V AC, Screw Clamp - B-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
SCHNEIDERB-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors

SCHNEIDER Supplementary Protector: 20 A Amps, 14kA at 240V AC, Screw Clamp

The SCHNEIDER ELECTRIC IEC Supplementary Protector is a B-Curve, 4-Pole UL1077 DIN Rail-Mount device rated for 20 A Amps. Part of the C60SP series (MPN M9F21420), it features a Max. AIR Rating of 14kA at 240V AC and…

SKU 3G-OTH-21673

Brand
SCHNEIDER
Item
Supplementary Protector: 20 A Amps, 14kA at 240V AC, Screw Clamp
Category
B-Curve, 4-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Technical Specifications

SCHNEIDER
Manufacturer Part Number
M9F21420
Series
C60SP
Type
14kA at 240V AC, Screw Clamp, B
Max. AIR Rating
14kA at 240V AC
DC Voltage Rating
Not Rated
Terminal Connection
Screw Clamp
View Full Spec Sheet

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SCHNEIDER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SCHNEIDER ELECTRIC IEC Supplementary Protector is a B-Curve, 4-Pole UL1077 DIN Rail-Mount device rated for 20 A Amps. Part of the C60SP series (MPN M9F21420), it features a Max. AIR Rating of 14kA at 240V AC and a Screw Clamp terminal connection, with no DC Voltage Rating.

Frequently Asked Questions

What is the SCHNEIDER C60SP supplementary protector used for?

The SCHNEIDER C60SP supplementary protector provides overcurrent protection for branch circuits in industrial control panels and equipment. Its B-Curve trip characteristic makes it suitable for resistive and lighting loads where inrush currents are low. It is commonly used in UL1077 applications requiring a 20 A, 4-pole DIN rail-mounted device.

What are the specifications of the SCHNEIDER M9F21420?

The SCHNEIDER M9F21420 is a 20 A, 4-pole supplementary protector from the C60SP series. It has a maximum AIR rating of 14kA at 240V AC, a B-Curve trip characteristic, and screw clamp terminals. It is UL1077 listed for DIN rail mounting and has no DC voltage rating. The brand is SCHNEIDER.

Where to buy SCHNEIDER C60SP supplementary protectors worldwide?

3G Electric supplies SCHNEIDER C60SP supplementary protectors worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the M9F21420 or other C60SP series devices. We provide competitive pricing and reliable shipping for international orders.

How to install a SCHNEIDER C60SP supplementary protector?

Install the SCHNEIDER C60SP on a standard 35 mm DIN rail by clipping it into place. Ensure the supply is de-energized. Connect phase conductors to the screw clamp terminals and tighten to the torque specified on the device label. For 4-pole units, verify neutral and phase wiring per local codes. Always follow the manufacturer's installation manual.

Used in

Common applications for SCHNEIDER
Motor starting in conveyor systems — Schneider Altistart ATS 22 soft starters (e.g., ATS22D17S6U) reduce inrush current.
Speed control for industrial pumps — Schneider Altivar ATV320 VFDs (e.g., ATV320U55N4W) provide variable flow regulation.
Machine safety interlocking — Schneider XPSUAF13AP safety relays monitor emergency stop circuits on assembly lines.
Panel-mounted control stations — Schneider XB5 flush push buttons (ZB5AA5) serve as start/stop operators in MCCs.
Heavy-duty motor switching — Schneider LC1G150LSEA contactors handle 150 A loads in compressor and crusher applications.
Emergency stop actuation — Schneider 9001K mushroom-head push buttons (9001KR25R) provide red, momentary stop functions.

SCHNEIDER Products

3G Electric supplies SCHNEIDER b-curve, 4-pole ul1077 din rail-mount supplementary protectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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SCHNEIDER ELECTRIC IEC Supplementary Protector: 8 A Amps, 14kA at 240V AC, Screw Clamp, B (MPN M9F21408). Key specifications — Series: C60SP; DC Voltage Rating: Not Rated; Max. AIR Rating: 14kA at 240V AC; Terminal Connection: Screw Clamp; Brand: SCHNEIDER.
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SCHNEIDER ELECTRIC IEC Supplementary Protector: 8 A Amps, 14kA at 240V AC, Screw Clamp, B (MPN M9F21408). Key specifications — Series: C60SP; DC Voltage Rating: Not Rated; Max. AIR Rating: 14kA at 240V AC; Terminal Connection: Screw Clamp; Brand: SCHNEIDER.
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SCHNEIDER ELECTRIC IEC Supplementary Protector: 6 A Amps, 14kA at 240V AC, Screw Clamp, B (MPN M9F21406). Key specifications — Series: C60SP; DC Voltage Rating: Not Rated; Max. AIR Rating: 14kA at 240V AC; Terminal Connection: Screw Clamp; Brand: SCHNEIDER.
SCHNEIDER ELECTRIC IEC Supplementary Protector: 50 A Amps, 10kA at 240V AC, Screw Clamp, B (MPN M9F21450). Key specifications — Series: C60SP; DC Voltage Rating: Not Rated; Max. AIR Rating: 10kA at 240V AC; Terminal Connection: Screw Clamp; Brand: SCHNEIDER.
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SCHNEIDER ELECTRIC IEC Supplementary Protector: 50 A Amps, 10kA at 240V AC, Screw Clamp, B (MPN M9F21450). Key specifications — Series: C60SP; DC Voltage Rating: Not Rated; Max. AIR Rating: 10kA at 240V AC; Terminal Connection: Screw Clamp; Brand: SCHNEIDER.
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SCHNEIDER ELECTRIC IEC Supplementary Protector: 16 A Amps, 14kA at 240V AC, Screw Clamp, B (MPN M9F21416). Key specifications — Series: C60SP; DC Voltage Rating: Not Rated; Max. AIR Rating: 14kA at 240V AC; Terminal Connection: Screw Clamp; Brand: SCHNEIDER.
SCHNEIDER ELECTRIC IEC Supplementary Protector: 32 A Amps, 14kA at 240V AC, Screw Clamp, B (MPN M9F21432). Key specifications — Series: C60SP; DC Voltage Rating: Not Rated; Max. AIR Rating: 14kA at 240V AC; Terminal Connection: Screw Clamp; Brand: SCHNEIDER.
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SCHNEIDER ELECTRIC IEC Supplementary Protector: 40 A Amps, 10kA at 240V AC, Screw Clamp, B (MPN M9F21440). Key specifications — Series: C60SP; DC Voltage Rating: Not Rated; Max. AIR Rating: 10kA at 240V AC; Terminal Connection: Screw Clamp; Brand: SCHNEIDER.
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SCHNEIDER ELECTRIC IEC Supplementary Protector: 13 A Amps, 14kA at 240V AC, Screw Clamp, B (MPN M9F21413). Key specifications — Series: C60SP; DC Voltage Rating: Not Rated; Max. AIR Rating: 14kA at 240V AC; Terminal Connection: Screw Clamp; Brand: SCHNEIDER.
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SCHNEIDER ELECTRIC IEC Supplementary Protector: 13 A Amps, 14kA at 240V AC, Screw Clamp, B (MPN M9F21413). Key specifications — Series: C60SP; DC Voltage Rating: Not Rated; Max. AIR Rating: 14kA at 240V AC; Terminal Connection: Screw Clamp; Brand: SCHNEIDER.