MTS Dual Power Interlock Manual Transfer Switch

The PuGao MORA PLTS-63 MTS Dual Power Interlock Manual Transfer Switch is a rail type modular manual switching device suitable for 230/400V AC dual source power supply systems. Built in high-strength mechanical interlock to prevent two power sources from being connected simultaneously, avoiding the risk of dangerous reverse power transmission; I-0-II three position handle, with both power on switching and complete electrical isolation functions. We offer multiple current specifications and multipole options of 40A and 63A. The shell is made of flame-retardant PA66 material, and the contacts are arc resistant. The product is produced in a Pu Gao ISO certified factory and supports OEM customization.

characteristics

The reinforced mechanical locking structure constrains the movement of internal contacts, and even if the handle is operated by human error, the two power contacts cannot be closed simultaneously. When switching power, the handle must go through the middle "0" cut-off gear to completely cut off the current power supply circuit before connecting to another power source. The principle of "cut off first, then close" must be strictly followed to prevent reverse power transmission from threatening operation and maintenance personnel and backend electrical equipment. The middle gear can achieve complete electrical isolation, making it convenient for cabinet inspection and repair, line modification, and equipment shutdown maintenance.

The shell is made of high-quality PA66 flame-retardant engineering plastic through integrated injection molding, which is resistant to high temperature, leakage and marking, and arc erosion under long-term working conditions. Silver alloy contacts effectively suppress the arc generated by manual switching, with an electrical lifespan of ≥ 1500 times and a mechanical lifespan of ≥ 8500 times. The compact modular design saves installation space inside the cabinet and perfectly adapts to the layout of household, commercial, and light industrial distribution boxes.

The mechanical gear feedback is clear, and each gear is positioned decisively. Three states are defined:

-Level I: Connect the load to the main power supply

-0 mode: Both inputs are disconnected, isolated state

-Level II: Load connected to backup power supply

The panel is clearly marked, and the current power supply status can be quickly identified even when there is insufficient light inside the cabinet. No additional auxiliary power supply is required for operation.

Suitable for universal 35mm standard DIN rail, snap on quick installation. Polarity options include 1P/2P/3P/4P; The rated current covers 40A and 63A, and the rated working voltage is AC230V/400V, 50-60Hz. The terminal layout supports a dual power supply dedicated wiring method with bottom in and top out, allowing for flexible adjustment of on-site wiring according to project drawings.

The MTS Dual Power Interlock Manual Transfer Switch is produced in a 5000 square meter self owned factory in Zhejiang Pugao and has passed ISO9001 quality management system certification. Support OEM/ODM customization: laser screen printing or transfer printing of customer brand logos, shell color adjustment, and customization of parameters according to overseas project requirements. The products undergo full functional batch testing on an automated testing platform before leaving the factory, meeting international standards for low-voltage electrical appliances. They can be exported to overseas markets such as the Middle East, Central Asia, and Africa.

Product interpretation: MORA PLTS-63 MTS dual power interlock conversion switch (4P C63)

Basic Parameters

Brand: MORA

Model: PLTS-63 (MTS Manual Dual Power Conversion Switch)

Specification: 4P C63

Rated voltage: 400V~, 50/60Hz

Breaking capacity: 6000A

Execution standard: IEC60898-1

Installation: 35mm standard DIN rail installation

Structure: Mechanical interlocking structure, dual power sources cannot be closed simultaneously

Product Description

Manual dual power MTS conversion switch, AC dedicated, two-way power switching, mechanical interlock to prevent parallel short circuit of two power sources

4P structure, simultaneously connecting and disconnecting three-phase live and neutral wires

C-type trip, equipped with overload and short circuit protection, with both circuit breaker protection and power switching function

Core function: Manual switching between common power supply and backup power supply, with one power supply disconnected and manually switched to the other power supply

Applicable scenarios: computer rooms, shops, construction sites, small distribution cabinets, and occasions that require switching between two mains power sources

Important reminder: Manual switching, not automatic; Mechanical interlocking mechanism, it is strictly prohibited to forcefully push up both handles at the same time; Only for communication use, not for direct current.

Introduction to Foreign Trade in English

MORA PLTS-63 MTS Manual Transfer Switch, 4P C63. Rated voltage 400V AC, 50/60Hz, breaking capacity 6000A, compliant with IEC60898-1.

With mechanical interlock to avoid parallel connection of two power sources. It has overload and short-circuit protection. Installed on standard 35mm DIN rail, used for manual switching between main and standby power supply.、

Application：

Manually switch between mains power and household generators to ensure power supply for important loads in the home during power outages.

Switching between municipal power grid and solar reserve power supply, suitable for rural self built houses and RV matching.

MTS Dual Power Interlock Manual Transfer Switch is used for planned power outage maintenance and emergency power outages without the need for instantaneous automatic switching.

Manually and orderly switch loads between rooms, water pump stations, and monitoring stations to avoid generator overload.

Auxiliary power supply circuits for hotels, high-rise buildings, and public facilities are used as safety isolation devices during maintenance.

Installation and operation instructions

Important reminder: It is necessary to have a certified electrician for installation and strictly comply with local electrical regulations.

Before wiring operations, it is necessary to cut off both input power sources to eliminate the risk of live construction.

2. Insert the switch into the 35mm DIN rail inside the distribution box, leaving enough space for wiring and handle movement.

3. In dual power scenarios, bottom in and top out wiring is preferred: the main power supply is connected to the first source terminal, the backup generator/photovoltaic inverter is connected to the second source terminal, and the backend load is connected to the output terminal; Tighten the terminal screws to prevent loose wiring and overheating.

When switching power, the handle must pass through the middle "0" position, and it is forbidden to directly switch between gears I and II.

5. After the wiring is completed, perform a functional test: toggle the handle to switch between three gears, confirm that the mechanism operates smoothly, the interlock is normal, and there are no abnormal arcs.

6. Regular inspection: Check the tightness of terminals and the flexibility of handles every quarter; It is prohibited to dismantle internal mechanical interlock components without authorization.

Why choose Pugao as MTS supplier

Pugao is a low-voltage electrical entity manufacturer established in 2011, not a trade intermediary. Our own R&D team continuously iterates the product structure to improve interlock reliability and contact arc resistance performance. The minimum order quantity is flexible, and the MTS Dual Power Interlock Manual Transfer Switch supports sample trial orders and bulk shipments of full containers. Complete technical after-sales support: selection guidance, installation suggestions, and technical data support. We can provide samples for customers to test and evaluate.

FAQ

Q1: Can MTS replace automatic ATS dual power supply?

A: MTS is a manually operated product that requires personnel to operate on site in order to switch power. Suitable for projects that do not require unmanned instantaneous switching and pursue cost advantages. If uninterrupted automatic switching is required after a power outage, please choose the Pugao Automatic ATS series.

Q2: Will the mechanical interlock wear out and fail after long-term use?

A: The interlocking component adopts reinforced engineering plastics and metal structural components, with a mechanical life of ≥ 8500 times. Under the premise of standardized installation and correct operation, the interlocking safety performance is stable throughout the entire lifecycle. Disassembling the internal structure without authorization will result in loss of warranty and damage to safety protection.

Q3: What is the minimum order quantity for OEM branding?

A: The minimum order quantity varies with the customization content. You can contact sales to provide drawings or sample requirements, and we will provide supporting solutions.

Q4: Which extreme products should be selected for the project?

A: 2P (phase line+neutral line isolation) is selected for single-phase systems; Three phase power supply is selected as 3P/4P. Please inform us of the system voltage, number of phases, and load current for professional selection advice.

Q5: What documents can be provided for export customs declaration?

A: We can provide commercial invoices, packing lists, copies of certificates and other documents to meet the customs clearance compliance requirements of the destination country.