You seem to be referring about a 3 way lighting circuit. If the cross over switch is replaced with a double pole switch, depending on how the switch was wired into the circuit, the load lamp would either stay on or not light at all. A circuit in a three way configuration has two traveler legs between the two switches The intermediate switch in the circuit just switches the two traveler legs from open to close depending on the position of the other two switched. Google, three way switching, they have many diagrams to work from.
The circuit would not operate as required to. The only thing that a intermediate switch is used for is the centre switch position in three way switching or in the UK two way switching. It is a cross over switch. Visualise and draw on a piece of paper a rectangular box. Label the switch terminals as top left A , top right B, bottom left C and bottom right D. In one position of the toggle handle the terminals A - B are connected. In the same handle position C -D are connected. In the other handle position A - D are connected. In the same handle position C - B are connected.
If a double pole switch is inserted into the circuit in place of a cross over intermediate switch, in the on position the two end three way switches will work as a three way system but not as a four way system. In the off position the circuit would not operate at all as it would open the two traveller legs.
The circuit would not operate as it is supposed to. The intermediate switch is a cross over switch where as a double pole single throw switch is an off on device.
The circuit will not work. In a three way lighting circuit system the middle switch needs to cross the traveller wires to be effective. A double pole switch in the circuit will just open both traveller wires and disrupt the current flow in both wires. No current flow, no lights.
An intermediate or 4 way light switch has 4 terminals + 1 ground terminal.
Click the link and watch a video I have posted showing exactly how to wire this configuration.
iron clad double pole switch
A single pole switch is the ordinary switch that is used to turn the lights off and on in your home. A double throw switch is also known as a 3-way switch in North America. A double throw switch has a single pole connected to a common screw or terminal, often black. There are 2 additional screws or terminals, often brass colored. In one switch position this pole is connected to one of these screws or terminals and in the other position it connects to the other screw or terminal. If you think of a baseball diamond as an example for this switch, in one position the base line from home to first is hot. In the other position the base line from home to third is hot.
This looks like a question that has come out of the middle of a conversation. Us poor guys trying to answer the question don't have any context. We don't know what the intermediate switch is; or anything else about the system. You can always use just one side of a two pole switch to replace a single pole switch.
The circuit will not work. In a three way lighting circuit system the middle switch needs to cross the traveller wires to be effective. A double pole switch in the circuit will just open both traveller wires and disrupt the current flow in both wires. No current flow, no lights.
A two way switch is UK terminology for a North American three way switch. Though the switch has two names it is still a Single Pole Double Throw switch that has three terminals. North American terminology. The circuit is the same as the three way switch system. To control from four locations just add another intermediate switch. For the system to work properly the new intermediate switch has to be adjacent to the existing intermediate switch. The connections must run - three way, intermediate, intermediate, three way.
What kind of car and which switch. There are several that can effect compressor operation.
An intermediate or 4 way light switch has 4 terminals + 1 ground terminal.
Double pole wiring is checked the same way as single pole wiring. When you turn the switch on and the device works, in effect the switch is checked.
An intermediate switch is a switch of 4 terminals which is used to control devices from more than 2 locations. If you want to control a device (eg. lamp) from one location you use a normal switch, you could see two terminals behind it. If you want to control from two locations you use a 2-way switch (3-way in American vocabulary), you could see three terminals behind it. But if you want the device to be controlled from more locations, you need to use what is called the "Intermediate Switch". It is to be used in conjunction with other 2-way or intermediate switches. Technically speaking, an intermediate switch is similar in structure to a Double Pole Double Throw (DPDT) with the throw contacts of a pole is interconnected to that of the other pole. Consider the stairs of a G+2 storey building. You usually have three switches -one on Ground floor, second switch on the first floor and the third on the second floor, isn't it? You need to turn-on & off the light from all locations. Then, you need to use an intermediate switch in between two 2-way switches (Can also use all three intermediate if economy doesn't matter). If you require switches in 5 locations, go for two 2-way switches in the first and last points and three intermediate switches in the rest of the locations. In each intermediate switch you could see two sets of terminals. The two wires coming from one direction is connected to one set of terminals and new two wires are connected to the other two terminals and taken to the next switch in line. Also see section 5 of http://en.wikipedia.org/wiki/Switch
An intermediate switch is a switch of 4 terminals which is used to control devices from more than 2 locations. If you want to control a device (eg. lamp) from one location you use a normal switch, you could see two terminals behind it. If you want to control from two locations you use a 2-way switch (3-way in American vocabulary), you could see three terminals behind it. But if you want the device to be controlled from more locations, you need to use what is called the "Intermediate Switch". It is to be used in conjunction with other 2-way or intermediate switches. Technically speaking, an intermediate switch is similar in structure to a Double Pole Double Throw (DPDT) with the throw contacts of a pole is interconnected to that of the other pole. Consider the stairs of a G+2 storey building. You usually have three switches -one on Ground floor, second switch on the first floor and the third on the second floor, isn't it? You need to turn-on & off the light from all locations. Then, you need to use an intermediate switch in between two 2-way switches (Can also use all three intermediate if economy doesn't matter). If you require switches in 5 locations, go for two 2-way switches in the first and last points and three intermediate switches in the rest of the locations. In each intermediate switch you could see two sets of terminals. The two wires coming from one direction is connected to one set of terminals and new two wires are connected to the other two terminals and taken to the next switch in line
: Blocking can occur when two switch inputs attempt to access the same intermediate switch channel.
The circuit will not work. The intermediate switch has to be a cross over switch. Visualise and draw on a piece of paper a rectangular box. Label the switch terminals as top left A , top right B, bottom left C and bottom right D. In one position of the toggle handle the terminals A - B are connected. In the same handle position C -D are connected. In the other handle position A - D are connected. In the same handle position C - B are connected. A double pole switch will just open both lines and the circuit stops working. The answer following this answer is not referring to an intermeadiate switch but replacing a single pole (SP) switch with a double pole (DP) switch. <<>> Replacing a single pole (SP) switch with a double pole (DP) switch would be ok as long as it's rated as good or higher than the switch it's replacing, and as long as it fits. It may weigh more than a SP switch as a DP switch would be slightly larger and have more contacts. If replacing a SP switch with a DP switch, using one with the Off position in the middle may cause confusion. If replacing a SP switch with a DP switch on a circuit board it may not fit if the board is crowded. You may also have to clip off the unused lead(s) as there may not be any provision (thru hole(s)) on the board for them (or it).
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