Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

MARKEL PRODUCTS Disconnect Switch: Unit-Mounted, For 52AT75/52AT77/52AT81, 100 A, 600V AC - Switches for Electric Wall & Ceiling Heaters
MARKEL PRODUCTSSwitches for Electric Wall & Ceiling Heaters

MARKEL PRODUCTS Disconnect Switch: Unit-Mounted, For 52AT75/52AT77/52AT81, 100 A, 600V AC

The MARKEL PRODUCTS Disconnect Switch (SKU 52AT90, MPN DCS1003/5100) is a unit-mounted DPST switch for electric wall and ceiling heaters. It features an 80A contact rating, 600V AC (1 or 3-phase) voltage, and…

SKU 3G-OTH-66214

Brand
MARKEL PRODUCTS
Item
Disconnect Switch: Unit-Mounted, For 52AT75/52AT77/52AT81, 100 A, 600V AC
Category
Switches for Electric Wall & Ceiling Heaters
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

MARKEL PRODUCTS
Manufacturer Part Number
DCS1003/5100
Type
For 52AT75/52AT77/52AT81, 100 A, DPST, 80A
AC
600V
Voltage
600V AC
Includes
Wire Leads for Quick Connection
Switch Type
DPST
For Use With
52AT77
Product Type
Disconnect Switch
Mounting Type
Unit-Mounted
Contact Rating
80A
Voltage, Phase
600V AC, 1 or 3-phase
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The MARKEL PRODUCTS Disconnect Switch (SKU 52AT90, MPN DCS1003/5100) is a unit-mounted DPST switch for electric wall and ceiling heaters. It features an 80A contact rating, 600V AC (1 or 3-phase) voltage, and includes wire leads for quick connection. This switch is designed for use with the 52AT77 heater.

Frequently Asked Questions

What is the MARKEL PRODUCTS Disconnect Switch used for?

The MARKEL PRODUCTS Disconnect Switch is a unit-mounted DPST switch designed for electric wall and ceiling heaters, specifically the 52AT77 model. It provides a safe means to disconnect power for maintenance or emergency shutdown in commercial or industrial heating applications.

What are the specifications of the MARKEL PRODUCTS Disconnect Switch?

The MARKEL PRODUCTS Disconnect Switch (MPN DCS1003/5100) has an 80A contact rating, 600V AC voltage, and supports 1 or 3-phase operation. It is a DPST switch with wire leads for quick connection, unit-mounted for use with the 52AT77 heater.

Where to buy the MARKEL PRODUCTS Disconnect Switch worldwide?

3G Electric supplies the MARKEL PRODUCTS Disconnect Switch worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the MARKEL PRODUCTS Disconnect Switch?

Install the MARKEL PRODUCTS Disconnect Switch by mounting it on the heater unit and connecting the wire leads to the power supply. Ensure the circuit is de-energized before installation. Follow local electrical codes and the manufacturer's instructions for safe operation.

Used in

Common applications for MARKEL PRODUCTS
Commercial warehouses — MARKEL heavy-duty fan-forced wall heaters (e.g., H3346T-BMS) for maintaining ambient temperature in large open spaces.
Hazardous industrial zones — MARKEL PHLA series portable heaters for temporary heating in areas with flammable atmospheres.
HVACR maintenance — MARKEL replacement ceiling heater elements (e.g., 25465003) for servicing existing wall and ceiling heater units.
Office buildings — MARKEL recessed wall heaters with occupancy sensors (e.g., K3455SD-GB) for zone heating in conference rooms and lobbies.
Manufacturing plants — MARKEL surface-mount cabinet heaters (e.g., F3346T-BMS-W) for spot heating near workstations or equipment.
Electrical rooms — MARKEL 6,000 W wall heaters (e.g., J3346T-BMS-W) for freeze protection and humidity control in enclosed spaces.

MARKEL PRODUCTS Products

3G Electric supplies MARKEL PRODUCTS switches for electric wall & ceiling heaters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
MARKEL Disconnect Switch: Unit-Mounted, For 52AT79, 60 A, Fits 40 kW kW, 600V AC, 1 or 3-phase, DPST (MPN DCS603/5100). Key specifications — Contact Rating: 48A; Voltage, Phase: 600V AC, 1 or 3-phase; Mounting Type: Unit-Mounted; Product Type: Disconnect Switch; Switch Type: DPST; For Use With: 52AT79; Voltage: 600V AC; Includes: Wire Leads for Quick Connection.
MARKEL
MARKEL Disconnect Switch: Unit-Mounted, For 52AT79, 60 A, Fits 40 kW kW, 600V AC, 1 or 3-phase, DPST (MPN DCS603/5100). Key specifications — Contact Rating: 48A; Voltage, Phase: 600V AC, 1 or 3-phase; Mounting Type: Unit-Mounted; Product Type: Disconnect Switch; Switch Type: DPST; For Use With: 52AT79; Voltage: 600V AC; Includes: Wire Leads for Quick Connection.
MARKEL Disconnect Switch: Unit-Mounted, 40 A, Fits 3 kW_30 kW kW, 600V AC, 1 or 3-phase, 600V AC (MPN DCS403/5100). Key specifications — Contact Rating: 32A; Voltage, Phase: 600V AC, 1 or 3-phase; Mounting Type: Unit-Mounted; Product Type: Disconnect Switch; Switch Type: DPST; For Use With: 49ZZ96; Voltage: 600V AC; Includes: Wire Leads for Quick Connection.
MARKEL
MARKEL Disconnect Switch: Unit-Mounted, 40 A, Fits 3 kW_30 kW kW, 600V AC, 1 or 3-phase, 600V AC (MPN DCS403/5100). Key specifications — Contact Rating: 32A; Voltage, Phase: 600V AC, 1 or 3-phase; Mounting Type: Unit-Mounted; Product Type: Disconnect Switch; Switch Type: DPST; For Use With: 49ZZ96; Voltage: 600V AC; Includes: Wire Leads for Quick Connection.
MARKEL Disconnect Switch: Unit-Mounted, For 49ZZ90/49ZZ92, 20 A, Fits 3 kW_5 kW kW, 600V AC, 1-phase (MPN DCS202/5100). Key specifications — Contact Rating: 16A; Voltage, Phase: 600V AC, 1-phase; Mounting Type: Unit-Mounted; Product Type: Disconnect Switch; Switch Type: DPST; For Use With: 49ZZ90; Voltage: 600V AC; Includes: Wire Leads for Quick Connection.
MARKEL
MARKEL Disconnect Switch: Unit-Mounted, For 49ZZ90/49ZZ92, 20 A, Fits 3 kW_5 kW kW, 600V AC, 1-phase (MPN DCS202/5100). Key specifications — Contact Rating: 16A; Voltage, Phase: 600V AC, 1-phase; Mounting Type: Unit-Mounted; Product Type: Disconnect Switch; Switch Type: DPST; For Use With: 49ZZ90; Voltage: 600V AC; Includes: Wire Leads for Quick Connection.
QMARK Disconnect Switch: Unit-Mounted, 60 A, Fits 25 kW_50 kW kW, 600V AC, 1 or 3-phase, 600V AC (MPN MPDS60). Key specifications — Contact Rating: 80A @ 600V AC; Voltage, Phase: 600V AC, 1 or 3-phase; Mounting Type: Unit-Mounted; Product Type: Disconnect Switch; Switch Type: Rotary; For Use With: MUH152; Voltage: 600V AC; Includes: Knob.
QMARK
QMARK Disconnect Switch: Unit-Mounted, 60 A, Fits 25 kW_50 kW kW, 600V AC, 1 or 3-phase, 600V AC (MPN MPDS60). Key specifications — Contact Rating: 80A @ 600V AC; Voltage, Phase: 600V AC, 1 or 3-phase; Mounting Type: Unit-Mounted; Product Type: Disconnect Switch; Switch Type: Rotary; For Use With: MUH152; Voltage: 600V AC; Includes: Knob.
QMARK Disconnect Switch: Unit-Mounted, For All MUH Heaters, 25 A, Fits 3 kW_15 kW kW, 600V AC, Knob (MPN DS25). Key specifications — Contact Rating: 30A @ 600V AC; Voltage, Phase: 600V AC, 1 or 3-phase; Mounting Type: Unit-Mounted; Product Type: Disconnect Switch; Switch Type: 3 Pole; For Use With: All MUH Heaters; Voltage: 600V AC; Includes: Knob.
QMARK
QMARK Disconnect Switch: Unit-Mounted, For All MUH Heaters, 25 A, Fits 3 kW_15 kW kW, 600V AC, Knob (MPN DS25). Key specifications — Contact Rating: 30A @ 600V AC; Voltage, Phase: 600V AC, 1 or 3-phase; Mounting Type: Unit-Mounted; Product Type: Disconnect Switch; Switch Type: 3 Pole; For Use With: All MUH Heaters; Voltage: 600V AC; Includes: Knob.
QMARK Disconnect Switch: Unit-Mounted, For CDF Series Heaters, 30 A, 277V AC, 1-phase, 277V AC (MPN CDFDS). Key specifications — Voltage, Phase: 277V AC, 1-phase; Mounting Type: Unit-Mounted; Product Type: Disconnect Switch; For Use With: CDF Series Heaters; Voltage: 277V AC; Brand: QMARK.
QMARK
QMARK Disconnect Switch: Unit-Mounted, For CDF Series Heaters, 30 A, 277V AC, 1-phase, 277V AC (MPN CDFDS). Key specifications — Voltage, Phase: 277V AC, 1-phase; Mounting Type: Unit-Mounted; Product Type: Disconnect Switch; For Use With: CDF Series Heaters; Voltage: 277V AC; Brand: QMARK.

More from MARKEL PRODUCTS

View all MARKEL PRODUCTS parts