Jaimax Switchgears offers the EPHA LIMIT SWITCHES in an enclosure suitable for use in hazardous atmosphere. The EPHA type is available in 2NO + 2 NC output.
JAI EPHA LIMIT SWITCHES are for use either indoor or outdoor in hazardous atmospheres, as they are completely sealed explosion proof device.
Mounting Holes are provided for front or rear mounting making the switch interchangeable with other hazardous location switches.
Various types of heads helps to suit in any typeof cam and-application.
- Non Sparking Actuators
- Six types of Operating Heads
- Rotatable Operating Heads
- Operates Upto 121 C
- Ample Wiring Space
- Multiple Contacts
- Compact Machine Tool Type
- Flexibility of Motion
Application proven heavy duty limit switch head seals are retained to seal the top of the JAI EPHA. The circular cover on the front is easily unscrewed to expose switching elements for wiring or replacement. A screw driver or bar used on the wrenching lugs extending from the front of the cover allows easy removal or tightening. An ‘O’ ring the seal is located between the housing and cover, flame paths are provided by the cover housing threads and on extended plunger between the switch cavity and head.
JAI EPHA flame proof limit switches are interchangeable with any standard heavy duty limit switch with a adpter plate.
JAI EPHA has a recessed back into which the adapter plate fits and mounts using two switch.
JAI EPHA type limit switches are available with a variety of operating heads to meet diverse applications.
They are available in spring return and maintained type. They rotary shaft can be readily change to operate clockwise, counter clockwise or both. The operating levers may be rotated and locked in any position through 360D. The operating heads can be positioned in any of the four sides. The lever rollers or 19mm diameter and 8mm width. The levers are available fixed and adjustable lengths.
Cable entry available either in ½” NPTor ¾”NPT or 1/2 “ BSPT
| Description | Type | Ordering Code |
| Roller Lever | 38 mm length 76 mm length 50 mm length 64 mm length 50 mm length |
EPHA – 1* EPHA – 2* EPHA – 3* EPHA – 4* EPHA – 0* |
| Adjustable Roller Lever | 47 to 75 mm | EPHA – A* |
| Antina type lever | 134 mm length | EPHA – JW* |
| Fork Lever | Roller in line with Offset roller | EPHA – F* EPHA – FO* |
| Top Push | Roller type button type | EPHA – TPR EPHA – TPBA |
| Side Push | Roller type button type | EPHA – SPR EPHA – SPBA |
* Also available with maintain contact, add M as suffix to code while ordering
| Models | EPHA 1 EPHA 2 EPHA 3 EPHA 4 EPHA 0 EPHA F EPHA FO EPHA A EPHA JW |
EPHA 1M EPHA 2M EPHA 3M EPHA 4M EPHA 0M EPHA FM EPHA FOM EPHA AM EPHA JWM |
EPHA TPR EPHA TPBA (mm) |
EPHA SPR EPHA SPBA (mm) |
| Travel to Trip A Travel to reset from trip point B Overtravel C Total Travel D Force to trip (max) kg Operating Torque (max) kgfm |
10 ° 6 ° 60 ° 70 ° – 0.046 |
50° + 50° + 40°*. 90° + – 0.02 |
1.3 + 1.1 5.7 7.0 2.0 – |
2.0+ 1.7 5.0 7.0 2.0 – |
+ Maximum * Minimum
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