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Dayton Supplementary Protector: 20 A Amps, 440V DC, 10kA at 440V DC, Screw Clamp - DC-Only Rated, 2-Pole UL1077 DIN Rail-Mount Supplementary Protectors
DaytonDC-Only Rated, 2-Pole UL1077 DIN Rail-Mount Supplementary Protectors

Dayton Supplementary Protector: 20 A Amps, 440V DC, 10kA at 440V DC, Screw Clamp

The DAYTON IEC Supplementary Protector (SKU 5MLD8) is a DC-only rated, 2-pole UL1077 DIN rail-mount supplementary protector from the NDB2Z-63 C20/2 series. It is rated for 20 A amps with a C curve type, a DC voltage…

SKU 3G-OTH-22344

Brand
Dayton
Item
Supplementary Protector: 20 A Amps, 440V DC, 10kA at 440V DC, Screw Clamp
Category
DC-Only Rated, 2-Pole UL1077 DIN Rail-Mount Supplementary Protectors
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Technical Specifications

Dayton
Manufacturer Part Number
5MLD8
Series
NDB2Z-63 C20/2
Type
10kA at 440V DC, Screw Clamp, NDB2Z-63 C20/2
DC
440V
Curve Type
C
Max. AIR Rating
10kA at 440V DC
AC Voltage Rating
Not Rated
DC Voltage Rating
440V DC
Terminal Connection
Screw Clamp
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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The DAYTON IEC Supplementary Protector (SKU 5MLD8) is a DC-only rated, 2-pole UL1077 DIN rail-mount supplementary protector from the NDB2Z-63 C20/2 series. It is rated for 20 A amps with a C curve type, a DC voltage rating of 440V DC, and a maximum AIR rating of 10kA at 440V DC. The unit features screw clamp terminals and is not rated for AC voltage.

Frequently Asked Questions

What is the DAYTON IEC Supplementary Protector 5MLD8 used for?

The DAYTON 5MLD8 is a DC-only rated supplementary protector used to protect downstream equipment from overcurrents in DC control circuits, battery banks, and solar applications. It mounts on a DIN rail and is suitable for industrial environments requiring reliable DC circuit protection up to 440V DC.

What are the specifications of the DAYTON 5MLD8 supplementary protector?

The DAYTON 5MLD8 is a 2-pole UL1077 supplementary protector rated 20 A with a C curve, 440V DC, and a maximum interrupting rating of 10kA at 440V DC. It has screw clamp terminals and is not rated for AC voltage. The series is NDB2Z-63 C20/2.

Where to buy the DAYTON 5MLD8 supplementary protector worldwide?

3G Electric supplies the DAYTON 5MLD8 supplementary protector to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this DC-rated protector.

How to install the DAYTON 5MLD8 supplementary protector on a DIN rail?

To install the DAYTON 5MLD8, snap it onto a standard 35 mm DIN rail. Ensure the DC supply is off. Connect wires to the screw clamp terminals per the wiring diagram. Torque terminals to the manufacturer's specification. Verify polarity and rated voltage before energizing.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton dc-only rated, 2-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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DAYTON IEC Supplementary Protector: 6 A Amps, 440V DC, 10kA at 440V DC, Screw Clamp, NDB2Z-63 B6/2 (MPN 5ZDZ1). Key specifications — Terminal Connection: Screw Clamp; AC Voltage Rating: Not Rated; Curve Type: B; DC Voltage Rating: 440V DC; Max. AIR Rating: 10kA at 440V DC; Series: NDB2Z-63 B6/2; Brand: DAYTON.
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DAYTON IEC Supplementary Protector: 50 A Amps, 440V DC, 10kA at 440V DC, Screw Clamp, NDB2Z-63 C50/2 (MPN 5MLE2). Key specifications — Terminal Connection: Screw Clamp; AC Voltage Rating: Not Rated; Curve Type: C; DC Voltage Rating: 440V DC; Max. AIR Rating: 10kA at 440V DC; Series: NDB2Z-63 C50/2; Brand: DAYTON.
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DAYTON IEC Supplementary Protector: 50 A Amps, 440V DC, 10kA at 440V DC, Screw Clamp, NDB2Z-63 C50/2 (MPN 5MLE2). Key specifications — Terminal Connection: Screw Clamp; AC Voltage Rating: Not Rated; Curve Type: C; DC Voltage Rating: 440V DC; Max. AIR Rating: 10kA at 440V DC; Series: NDB2Z-63 C50/2; Brand: DAYTON.