User guide
24-18 
Pressure Switches, component tested
http://products.ecc.emea.honeywell.com/europe
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For overpressure monitoring of steam, hot water, burnable gases, liquid fuels.
Pressure monitor for hot water, steam, gas, fuel (DWR) 
Kind of pressure overpressure, relative
Pressure connection internal thread G1/4, external thread G1/2
Electrical connection Plug DIN 43650
Protection class IP54
Housing material rugged housing of seawater resistant aluminium die casting GD Al Si 
12
Sensing element material 1.4104 + 1.4571
Media temp. -25 ... 70
o
C
Media temp. limit temperatures up to 85 
o
C are allowable for short periods. Higher 
temperatures are possible, provided that the limit is safeguarded by 
suitable measures (e.g. water tube trap, see Accessories for Pressure 
Switches / Transmitters)
Ambient temperature -25 ... 70
o
C
Ambient temp. limit at temperatures below 0 
o
C, ensure that no water condensation can 
arise in the sensor and in the switching device
Switch function/capacity SPDT Microswitch 250 Vac; capacity 5 A inductive, 8 A resistive
Mechanical lock/reset with special function possible
Optional functions add the type numbers below to the listed type numbers for extra 
functionality as described
• -213: gold-plated contacts, switching capacity: max. 24 Vdc, 100 
mA, min. 5 Vdc, 2 mA. And others not available with adjustable 
switching difference.
• -301: terminal connection housing, IP65
• -513: Gold-plated contacts, single-pole switch-over. Switching 
differential permanent. IP65. Switching capacity: max. 24 Vdc, 100 
mA, min. 5 Vdc, 2 mA, suitable isolating switching amplifier, 
degree of protection EEx-i
• -574: Normally closed contact with resistance combination for 
minimum pressure monitoring. Gold-plated contacts. Housing 
with surface protection (chemical version), IP65
• -575: Normally closed contact with reclosing lock-out resistance 
combination for minimum pressure monitoring. Housing with 
surface protection (chemical version), IP65
• -576: Normally closed contact with resistance combination for 
maximum pressure monitoring. Gold-plated contacts. Housing 
with surface protection (chemical version), IP65
• -577: Normally closed contact with reclosing lock-out and 
resistance combination for maximum pressure monitoring. 
Housing with surface protection (chemical version), IP65
Certificates • ID 0000007042 according VdTUEV Memorandum Pressure 100/1, 
Issue 4.83
• NG-4347AQ1411 according to DIN 3398, Part 3, Issue 11.92
• 3C028/5 according to DIN 3398, Part 4, Issue 10.86
• CE0035BN004 according Directive 97/23/EC (Module B + D)
• SIL2 according IEC 61508










