DZ47S-125 with shunt trip circuit breaker

DZ47S-125Split trip circuit breaker (special switch for prepaid energy meters) (hereinafter referred to asCircuit breaker）This product is suitable for control circuits with AC frequency of 50Hz or 60Hz, rated working voltage of 230V/400V, and rated current of 12SA and below. It can perform remote control and automatic signal control for circuit breaking, as well as provide overload and short circuit protection for the circuit. It can also be used for infrequent operation conversion of the circuit under normal conditions. At present, thisminiature circuit breakerWidely used in conjunction with single-phase/three-phase intelligent prepaid energy meters (such as IC cards) to achieve control circuit switching. This series of products has the advantages of high breaking capacity, small size, light weight, strong universality of components, and beautiful appearance. They are installed on standard guide rails and easy to use. The circuit breaker complies with GB10963.1 and IEC60898-1 standards.

Rated current: 6380100125A
■ Number of poles: 1P+N/3P+N
Rated working voltage: 1P+N 230V; 3P+N 400V
■ Frequency: 50Hz
Operating voltage range: (65%~120%) Un
■ Breaking capacity: 230V (1P+N), 400V (3P+N);
■ Delay action time (intelligent shunt release time): 0.5s~2s
■ Reset time:<30s
Mechanical lifespan: 10000 cycles
Electrical lifespan: 2000 cycles
■ Current limiting level: 3
■ Impulse withstand voltage: 6kV
■ Insulation strength: able to withstand 2500V, power frequency withstand voltage for 1 minute
■ Protection level: IP20
■ Operating environment temperature: -30 ℃~60 ℃
■ Moisture resistance: Class 2 (relative humidity of 95% at a temperature of 55 ℃)
■ Wiring: Terminal wiring area, suitable for wires of 50mm ² and below
Tunnel type terminal block, with upper and lower locking clips, makes installation more convenient. The tightening torque of the terminal block is 3.5N · m.
■ Signal connection wires
The signal line is located at the bottom of the circuit breaker
The independent signal line has a cross-sectional area of 0.5mm ² and a length of 1 meter. The length of the signal line can be customized according to customer needs
Compliant with standard: GB10963.1
■ Compliant with certification: CCC
■ Release characteristics: C-curve
Protect conventional loads and distribution cables
□ Release characteristics: instantaneous release range (5-10) In

The ambient air temperature is between -5 ℃ and+40 ℃, and the average temperature within 24 hours does not exceed+35 ℃.
The altitude of the installation location should not exceed 2000m.
The relative humidity of the atmosphere should not exceed 50% when the ambient air temperature is+40 ℃, and higher relative humidity is allowed at lower temperatures; Special measures should be taken for occasional moderate condensation due to temperature changes.
Pollution level: Level 2.
The inclination of the installation plane to the vertical plane shall not exceed ± 5 °.
Installation conditions: Installed in a place without obvious shaking and impact vibration, in a medium without explosion hazard, and without gas in the medium that can corrode metals and damage insulation
Body and conductive dust, a place without rain or snow invasion.
Installation method: Install using standard mounting rails (TH35-7.5 type). Vertical installation is generally used during installation, with the handle facing upwards as the power on position.
Installation category: Level III.

Overcurrent protection characteristics

Specifications and technical parameters

Wiring: DZ47S-125 shunt trip circuit breaker (special switch for prepaid energy meters) is suitable for connecting 35mm ² wires and below. When using, refer to the table below to select the wire cross-sectional area, and tighten the terminal block with a torque of 3.5N·

DZ47S-125 structure

This circuit breaker is composed ofDZ47-125 Plastic Shell Circuit BreakerAssembled with a signal controlled release.
The DZ47-125 plastic shell circuit breaker is mainly composed of an insulation shell, an operating system, a contact system, a thermal magnetic system, and an arc extinguishing system. The signal controlled release consists of a signal input port, a signal voltage detection circuit, a delay control circuit, and a release mechanism. The plastic shell circuit breaker and the signal controlled release are linked through a push rod.

The characteristics of the shunt release device of DZ47S-125 circuit breaker are as follows:

The operating mechanism of the circuit breaker is a free tripping mechanism with energy storage, which quickly closes the contacts and overcomes the adverse effects caused by manual operation of the handle speed, greatly improving the service life of the product; During normal operation, the contact can only remain in the closed or open position. The shell and components are made of high flame retardant, high temperature resistant, and impact resistant plastic. The signal controlled release is composed of driving components such as thyristor and electromagnetic release. High breaking capacity, up to 6kA.
The signal control release consists of a signal input port, a signal processing system, and an electromagnetic release. Through an external signal line, remote signal control can be achieved.
The product is small in size, lightweight, and modular. Unique appearance, effectively utilizing spatial layout.
Standard guide rail installation, convenient and time-saving.

Working principle of DZ47S-125:

When in use, a control voltage is applied to the signal control release of the circuit breaker through the signal input port, that is, the signal voltage (which can be provided by the remote control circuit). Then, the circuit breaker handle is pushed to the closed position, and the operating mechanism drives the moving contact to move towards the stationary contact and make reliable contact with it. At this time, the circuit is connected. When an overload fault occurs in the circuit, the overload current causes the bimetallic element to bend, the overload release to actuate, and the locking mechanism to actuate, thereby achieving the disconnection of the circuit. When a short circuit fault occurs in the circuit, the short-circuit current causes the instantaneous release to operate, pushing the locking mechanism to operate and achieve the breaking function. When it is necessary to immediately cut off the line due to certain needs, the control voltage can be disconnected through the remote control system. At this time, the signal voltage detection circuit receives the signal and outputs a voltage signal to the trip coil, which drives the locking mechanism to operate and achieve the disconnection function. Therefore, this product can achieve the purpose of disconnection in different circuit states.
Standard guide rail installation, convenient and time-saving.