J403系列美国UE变压器油高中低压三点压力开关       J403系列美国UE高低压压力开关库存现货

400系列三点J403压力开关型号表：

J403-570 J403-571 J403-572 J403-S126B J403-S134B J403-S137B J403-S144BJ403-S146B J403-S156B J403-S164B J403-358 J403-361 J403-376 J403-610J403-16014 J403-614 J403-126 J403-134 J403-137 J403-144 J403-146 J403-156J403-164 J403-270 J403-274 J403-440 J403-442 J403-443 J403-448J403-450 J403-451 J403-452 J403-453 J403-454 J403-550 J403-551 J403-552 J403-553 J403-554 J403-555

400系列双点J402压力开关型号表：

J402-520 J402-521 J402-522 J402-523 J402-524 J402-525 J402-530 J402-531J402-532 J402-533 J402-534 J402-535 J402-570 J402-571 J402-572 J402-S126B J402-S134B J402-S137B J402-S144B J402-S146B J402-S156B J402-S164B J402-358J402-361 J402-376 J402-610 J402-16014 J402-614 J402-126 J402-134 J402-137 J402-144 J402-146 J402-156 J402-164 J402-270 J402-274 J402-441 J402-442 J402-443 J402-448 J402-449 J402-450 J402-451 J402-452 J402-453 J402-454 J402-550 J402-551 J402-552 J402-553 J402-554 J402-555

机械压力开关工作原理:压力开关的工作原理：是当系统内压力高于或低于额定的安全压力时，感应器内碟片瞬时发生移动，通过连接导杆推动开关接头接通或断开，当压力降至或升额定的恢复值时，碟片瞬时复位，开关自动复位，或者简单的说是当被测压力超过额定值时，弹性元件的自由端产生位移，直接或经过比较后推动开关元件，改变开关元件的通断状态，达到控制被测压力的目的。压力开关采用的弹性元件有单圈弹簧管、膜片、膜盒及波纹管等。

400系列H400压力开关型号表：H400-S126B H400-S134B H400-S137B H400-S144B H400-S146B H400-S156B H400-S164BH400-358 H400-361 H400-376 H400-126 H400-134 H400-137 H400-144 H400-146 H400-156H400-164 H400-270 H400-274 H400-440 H400-441 H400-442 H400-443 H400-448 H400-450H400-452 H400-453 H400-454 H400-550 H400-552 H400-553 H400-554 H400-555400系列H402双点压力开关型号表：H402-S126B H402-S134B H402-S144B H402-S146B H402-S156B H402-S164BH402-358 H402-361 H402-376 H402-126 H402-134 H402-144 H402-146 H402-156H402-164 H402-270 H402-274 H402-450 H402-452 H402-453 H402-454 H402-550 H402-552 H402-553 H402-554 H402-555400系列H403三点压力开关型号表：H403-S126B H403-S134B H403-S144B H403-S146B H403-S156B H403-S164BH403-358 H403-361 H403-376 H403-126 H403-134 H403-144 H403-146 H403-156H403-16

400系列J400压力开关型号表：J400-570 J400-571 J400-572 J400-S126B J400-S134B J400-S137B J400-S144BJ400-S146B J400-S156B J400-S164B J400-358 J400-361 J400-376 J400-610J400-16014 J400-614 J400-126 J400-134 J400-137 J400-144 J400-146 J400-156J400-164 J400-270 J400-274 J400-440 J400-441 J400-442 J400-443 J400-448J400-449 J400-450 J400-451 J400-452 J400-453 J400-454 J400-550 J400-551 J400-552 J400-553 J400-554 J400-555

400系列三点J403压力开关型号表：J403-570 J403-571 J403-572 J403-S126B J403-S134B J403-S137B J403-S144BJ403-S146B J403-S156B J403-S164B J403-358 J403-361 J403-376 J403-610J403-16014 J403-614 J403-126 J403-134 J403-137 J403-144 J403-146 J403-156J403-164 J403-270 J403-274 J403-440 J403-442 J403-443 J403-448J403-450 J403-451 J403-452 J403-453 J403-454 J403-550 J403-551 J403-552 J403-553 J403-554 J403-555

机械压力开关工作原理:压力开关的工作原理：是当系统内压力高于或低于额定的安全压力时，感应器内碟片瞬时发生移动，通过连接导杆推动开关接头接通或断开，当压力降至或升额定的恢复值时，碟片瞬时复位，开关自动复位，或者简单的说是当被测压力超过额定值时，弹性元件的自由端产生位移，直接或经过比较后推动开关元件，改变开关元件的通断状态，达到控制被测压力的目的。压力开关采用的弹性元件有单圈弹簧管、膜片、膜盒及波纹管等。

400系列H400压力开关型号表：H400-S126B H400-S134B H400-S137B H400-S144B H400-S146B H400-S156B H400-S164BH400-358 H400-361 H400-376 H400-126 H400-134 H400-137 H400-144 H400-146 H400-156H400-164 H400-270 H400-274 H400-440 H400-441 H400-442 H400-443 H400-448 H400-450H400-452 H400-453 H400-454 H400-550 H400-552 H400-553 H400-554 H400-555

400系列H402双点压力开关型号表：H402-S126B H402-S134B H402-S144B H402-S146B H402-S156B H402-S164BH402-358 H402-361 H402-376 H402-126 H402-134 H402-144 H402-146 H402-156H402-164 H402-270 H402-274 H402-450 H402-452 H402-453 H402-454 H402-550 H402-552 H402-553 H402-554 H402-555

400系列H403三点压力开关型号表：H403-S126B H403-S134B H403-S144B H403-S146B H403-S156B H403-S164BH403-358 H403-361 H403-376 H403-126 H403-134 H403-144 H403-146 H403-156H403-16

400系列J400压力开关型号表：

J400-570 J400-571 J400-572 J400-S126B J400-S134B J400-S137B J400-S144BJ400-S146B J400-S156B J400-S164B J400-358 J400-361 J400-376 J400-610J400-16014 J400-614 J400-126 J400-134 J400-137 J400-144 J400-146 J400-156J400-164 J400-270 J400-274 J400-440 J400-441 J400-442 J400-443 J400-448J400-449 J400-450 J400-451 J400-452 J400-453 J400-454 J400-550 J400-551 J400-552 J400-553 J400-554 J400-555