Model 120 Div 1 Hazardous Locations
"Piston Type"
Differential Pressure Switch
Electrical Configurations J & K
Class l, Division 1, Groups C & D
Class ll, Division 1, Groups E, F & G
Certifications: 
- CSA Certified to Canadian and US Standards
- UL Listed to US Standards
Dimensions:
See 120_dimension_haz_loc Division 1
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Product Features/Benefits
- Indication and Pressure Containing Element design identical to Standard product
- Dial Sizes: 2 -1/2", 3 1/2" (Enclosed in 4 1/2" Enclosure, 4 1/2"
- Can be ordered with or without Indication (Switch Only)
(Without Indication will be enclosed in 2 1/2" Enclosure)
- Explosion-proof Design
- CSA Listed to Canadian and US Standard ; UL Listed to US Standards
- Ranges, Scales, Dial Sizes, Elastomers etc. available are equivalent to Non-Hazardous Location product
- Hermetically Sealed Switch Design
- Aluminum Electrical Enclosure (NEMA 4X Optional)
- 1/2" FNPT Conduit with Color Coded Leads
- No Input Power required to operate the switches
- For complete model details See BULLETIN_120
- Installation and Operation Manual (Refer to Hazardous Locations section. Electrical Configurations J &K) ELECIOM_120
Specifications / Configuration
- Working Pressures Hazardous Locations Model 120:
Aluminum 3000 PSIG;
Stainless Steel: 5000 PSIG;
Note: Not available with Monel or Al-Br
- Operating Temp:
Switches: -40°F to +200°F (-40°C to +93°C)
- Configuration Limitations:
No Reverse Process Connections
Wall Mount Feet are Std
Process Ports exit the bottom of the enclosure. 1/4" MNPT
When Purchasing order with "0" connection Option
Electrical Specifications:
See Bulletin: Specificationsheet_120, Refer to Electrical Configurations J & K
Switch Electrical Specifications: See Bulletin: ELECIOM_120
Mid-West Hazardous Locations Indicating / Non-indicating switch (Electrical Configurations J or K) is intended for use in Division 1 hazardous Locations. Division 1 rated equipment can be used in Division 2 Locations
- 1 or 2 Independently adjustable SPST or SPDT Switches
- Optional Weather-proof NEMA 4X Rated enclosure
- ½”FNPT Conduit Access
- Color Coded 18 Awg. Flying Leads
- Chained Switch Adjust Access Plugs
- Note: Plugs must be reinstalled with a minimum 5 threads engagement
Parameter |
SPST (Normally Open)
(Normally Closed)
|
SPDT |
SPDT |
Options |
E, F, G |
A |
H |
*Power |
60 Watt |
3 Watt |
60 Watt |
Maximum Current |
3.0 Amps |
0.25 Amps |
1.0 Amps |
Maximum Voltage |
240 VAC/VDC |
125 VAC/VDC |
240 VAC/VDC |
Switch Setting
%Full Scale |
25 to 95 |
15 to 90 |
25 to 100 |
Hysteresis FSR
Maximum/Nominal |
15% / 8% |
10% / 5% |
20% / 13% |
Repeatability |
1% Full Scale |
1% Full Scale |
1% Full Scale |
* Product of the switching Voltage and Current Shall not exceed the Power Rating
Additional Options:
- Pipe Mounting Kit - 2" U-bolt
- Liquid Fill
- Oxygen Cleaning
- Maximum Indicator Follower Pointer
- NACE Compliance
- CRN - Canadian Registration Number
Model 120 Div 1 Hazardous LocationsDocuments
“Piston Type” Hazardous Locations Product
“Diaphragm Type” Hazardous Locations Product