MEDC HD1 Heat Detector

The MEDC HD1 Heat Detector has been designed to be used in hazardous environments. The HD1 is suitable for use in fire alarms and/or fire suppression systems.

The HD1 from MEDC can be used in offshore and onshore applications including paint spray booths, flammable material stores, turbine rooms, extract ductwork and other hazardous areas throughout the oil & gas, petrochemical and process industries.

MEDC HD1 Heat Detector

Please contact us for more information.
Zone 0, Zone 1 and Zone 2 use
Stainless steel probe
Marine grade alloy or GRP enclosure (model dependent)
Optional stainless steel guard.
Options: Enclosures, guard, color, tag and duty labels,
temperature setting, Series and EOL resistors, blanking plugs
Material: Detector: stainless steel
Enclosures: Exd - LM25 marine grade alloy
Exia/Exem/UL - GRP (anti-static)
Stainless steel cover screws
optional guard: 316 stainless steel
Finish: Detector: Sand blasted
Enclosures: Exia/Exem/UL - natural black or
painted to customer’s specification
Exd painted to customer’s specification
Ingress Protection: IP66 & IP67
Temperature settings: 60°C to 385°C/140°F to 725°F
Certified ambient temperature: -20°C to +125°C Exd (T3) ATEX/TR CU
-20°C to +55°C Exd (T6)/Ex em/UL
-55°C to +55°C Ex ia
Weight: Exd: 2kg
Exia/Exem/UL: 1.1kg
Area classification: Zone 0, Zone 1 and Zone 2 use
Explosion Protection: Ex II 2GD Ex d IIB T6
Ex II 2 GD Exd IIC ExtD A21 T85°C
Ex II 2 G Ex em II T6 (T4 with diodes/resistors)
Ex II 1 G Ex ia IIC T6 (T4 with diodes/resistors)
IECEx Ex ia IIC T4/6 Ga
Certifications: ATEX EEx d IIB:
Cert. no. Baseefa03ATEX0447
Certified to: EN50014, EN50018, EN50281-1-1
Ex II 2 GD, EEx d IIB T6 (T3 @ 125°C)

Cert. no. Baseefa08ATEX0320
Certified to: EN60079-0, EN60079-1, EN61241-0, EN61241-1
Ex II 2 GD, Ex d IIC T6, Ex tD A21 T85ºC (-20°C to +55°C)

ATEX EEx em:
Cert. no. Baseefa03ATEX0428
Certified to: EN50014, EN50019, EN50028
Ex II 2G, EEx em II T6 (-20°C to +55°C)

ATEX Ex ia:
Cert. no. Baseefa03ATEX0427Certified to: EN60079-0, EN60079-11
Ex II 1G, Ex ia IIC T6 Ga (-55°C to +55°C) (T4 with diodes/resistors)

IECEx Ex ia:
Cert. no. BAS 13.0010
Certified to: IEC60079-0, IEC60079-11
Ex ia IIC T6 Ga (-55°C to + 55°C) (T4 with diodes/resistors)

Listing no. E252920 – versions up to 450°F
Listing no. E254077 – versions from 600°F to 725°F
UL for USA and Canada, listed to Class 1, Div 2. Groups A – D

1Ex d IIB T3/T6
2Ex de IIC T4/T6
0Ex ia IIC T4/T6
Russian Fire Approved

Certified Ex ia

Certified EEx d, EEx ia & EEx em

American Bureau of Shipping type approval for HD1BBD & HD1B1 only

SIL2 certified. Cert no. Sira FSP 12007/02