MEDC CU1 | Hazardous Area Combination Units | ATEX Combination Units Zone 1 & Zone 2 Heavy Duty Industrial & Marine Ex de
MEDC CU1 Hazardous Area Combination Units
MEDC Cu1 | Atex Combination Units
Zone 1 & Zone 2 Hazardous Areas
MEDC CU1 are ATEX combination units intended for use in potentially explosive gas atmospheres in ATEX & IECEx Zone 1 and Zone 2 hazardous areas. MEDC combination units are designed for the purpose of alerting audio and visual awareness to an emergency situation, and can be ordered from Thorne & Derrick to suit client requirements.
This CU1 range of beacon/sounder combination units have a power rating of up to 10 watts (sounder) and 10 joules (beacon), and are suitable for use in the harsh environmental conditions found offshore and onshore in the oil, gas and petrochemical industries.
The flame paths, flare and body of this ATEX combination unit are manufactured from a UV stable glass reinforced polyester. Stainless steel screws and mounting stirrup are incorporated to ensure a corrosion-free product – and a tapered flamepath is used to overcome the problems of assembly of parallel spigot flamepaths.
The Eaton MEDC CU1 can be ordered from Thorne & Derrick with MEDC call points for integration into fire detection systems in the explosive atmosphere industries. A version with independent beacon/ sounder operation is also available.
ORDERING DETAILS
MEDC CU1 | EX D Single Combination unit
The MEDC CU1 hazardous area combination unit is available in a choice of variants with weatherproof options.
- CU1H ac version (Ex d)
- CU1H dc version (Ex d)
- CU1HP dc version (Ex d)
- CU1S ac version (Ex d)
- CU1S dc version (Ex d)
- CU1SP dc version (Ex d)
- CU1SPW dc version (weatherproof only)
- CU1SW ac version (weatherproof only)
- CU1SW dc version (weatherproof only)
MEDC
The MEDC range of sounders and beacons from the Crouse Hinds series of Signalling & Alarms – a comprehensive range of Explosion Proof call points are also available with ATEX & IECEx certification and explosion protection to both Ex d (flameproof) and Ex ia (Intrinsically Safe) applications.
Eaton MEDC CU1
ATEX Combination Units Zone 1 & Zone 2
ATEX Certified & Approved
Features
- Zone 1, Zone 2 & non-Ex use.
- Exde IIB T4.
- ATEX approved, Ex II 2 G.
- IECEx certified, Gb.
- TR CU certified.
- BASEEFA certified.
- Brazilian (Inmetro) certified.
- IP66 and IP67 Ingress Protection
- Certified temperature: –50°C to +70°C*.
- Up to 116 dB(A)*.
- Version with independent beacon/sounder operation now available.
- 27 Tones, user selectable (dual tone option – d.c. voltage).
- Tones comply with UK00A/PFEER guidelines
- Integral volume control
- GRP corrosion-free flamepath.
- Ratcheted swivel mouting stirrup.
- Stainless steel fixtures.
- Tapered flamepath.
*Model dependent.
Eaton MEDC CU1 – Dimensions
Current Consumption at full power (60fpm)
| Input Voltage | CU1S 10J | CU1H 10J | CU1S 5J | CU1H 5J |
| 24Vd.c. | 1680mA | 960mA | 1390mA | 750mA |
| 48Vd.c | 864mA | – | – | – |
| 110Va.c | 365mA | 360mA | – | – |
| 120Va.c | 417mA | 370mA | – | – |
| 230Va.c | 172mA | 165mA | – | – |
| 240Va.c | 182mA | 165mA | – | – |
| 254Va.c | 241mA | 220mA | – | – |
Integral volume control (beacon set to 60fpm)
(Not applicable to CU1H)
| * Nominal Output (dB(A) | CU1S 10J | CU1S 5J |
| 105dB(A) | 850mA | 650mA |
| 108dB(A) | 1000mA | 780mA |
| 111dB(A) | 1150mA | 940mA |
| 114dB(A) | 1400mA | 1190mA |
| 116dB(A) | 1680mA | 1390mA |
* Output measure with 24V input voltage. Tone set to 970Hz continuous. High temperature CU1H is set to 107dB(A). For the 24Vd.c. version 960mA @ 10J & 750mA @ 5J.
MEDC CU1 Hazardous Area Combination unit
Technical Specification
Should you require any further information to enable the selection or specification of ATEX combination units, for use in potentially explosive atmospheres, please contact us.
| Hazardous Area Certifications | |
| ATEX Ex de | Cert. no. Baseefa04ATEX0273X. Certified to: EN60079-0, EN60079-1, EN60079-7. Ex II 2G, Ex de IIB T4 Gb. |
| IECEx Ex de | Cert. no. IECEx BAS 11.0149X. Certified to: IEC60079-0, IEC60079-1, IEC60079-7. Ex de IIB T4 Gb |
| CUTR Ex de | 1Ex de IIB T3 Gb. Russian Fire Approved. |
| Inmetro Ex d e | Ex d e IIB T3 Gb. (T4 Pending). |
| ABS | American Bureau of Shipping Type Approval for CU1S, CU1SW, CU1H & CU1HW only |
| Specifications | |
| Material | Body, flares & covers: Glass Reinforced Polyester (GRP). Lens: Glass. Guard fitted as standard. Cover screws & mounting strap: Stainless steel. |
| Finish | Natural black or painted to customer specification |
| Certified Temp | Standard unit: -50ºC to +50ºC (CU1-S & CU1-SP). High temperature unit: -50ºC to +70ºC (CU1-H & CU1-HP). |
| Weight | 6.5kg approx |
| Ingress Protection | : IP66 & IP67 |
| Entries | Up to 2 x M25, 2 x M25 ISO, 2 x M20 with 1/2” NPT adaptor or 2 x M25 with 3/4” NPT adaptors into termination (Exe) chamber. |
| Terminals | 8 x 4.0sqmm |
| Relay Initiate | Available on all versions – operates with 24V d.c. initiate supplies only |
| Mounting | Stainless steel bracket with ratchet facility |
| Earth Continuity | Available as an option |
| Labels | Duty and tag label option to customer’s requirements. |
| Tube Energy | 5 or 10 Joules |
| Sound Output: | Sound Standard unit: 116dB(A) ± 3 dB(A) (tone dependent). High temp. unit: 110 dB(A) ±3 dB(A) (tone dependent). |
| Tone Selection | 27 user selectable tones |
| Two Stage Unit (d.c. only) | Switchable between any two tones by either: (i) Reversing the polarity* of the supply, or (ii) By a 3 wire common +ve system, switching between the two – ve lines. If a two stage unit is ordered with either Independent Sounder/Beacon operation or Telephone or Relay Initiate, it will be wired for reverse polarity tone switching only, to allow loop in, loop out installation.. *Will not affect beacon operation. |
EATON MEDC CU1 – ORDERING REQUIREMENTS
The following code is designed to help in selection of the correct MEDC hazardous area combination units with ATEX approval and certification. Build up the part number by inserting the code for each component into the appropriate box.
Eaton MEDC CU1 – Ordering Requirements
ATEX IECEX Approvals | International Hazardous Area Classifications & Approvals
EATON MEDC
Eaton MEDC have developed ATEX products, including ATEX Beacons, designed for harsh and hazardous area conditions and where there is a risk of explosion due to the presence of flammable gas and dust atmospheres both onshore and offshore – since 1975 MEDC have been designers and manufacturers of alarm, signal, control and communications equipment. T&D distribute the extensive range of Eaton MEDC products – this includes ATEX Certified manual call points, visual, audible alarms, loudspeakers and telephones for hazardous area workplaces, including Zone 1 & Zone 2 explosive atmospheres.
Thorne & Derrick, are the Explosive Atmosphere Experts, distributing an extensive range of ATEX Certified Equipment including heat tracing cables and systems, electrical heating products, electrical enclosures and plug/sockets outlets.
Complete range of LV-HV Cable Joints, Terminations, Cleats & Glands are available to support installation of power, control and instrumentation cables up to 33kV – includes Cold Shrink for use in hazardous areas to provide electrical insulation and cable protection.
Cable Cleats | Cable Lugs | Cable Transits | Cable Joints
ATEX Combination Units Zone 1 & Zone 2 Heavy Duty Industrial & Marine Ex de – Eaton MEDC CU1 Hazardous Area Combination Units
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