Perseus Medium Pressure Switch

Switchcase & covers: Black anodised aluminium case and 316 stainless steel adjustment cover.

Microswitch: 1 x SPCO/SPDT or 2 x SPCO/SPDT gold flashed silver contacts. Dual switches are mechanically linked to provide DPDT switching action, reset of switches could be up to 3% apart. Dual microswitches may increase deadband by a factor of two.

Microswitch rating: 5 Amps @ 250 VAC resistive, 2 Amps @ 250VAC inductive5 Amps @ 30VDC resistive, 3 Amps @ 30 VDC inductive

Electrical Connections: Terminals suitable for cable 0.5 – 2.5 mm2. (Max 1.5 mm2 for dual microswitch version)

Electrical Conduit Entry: M20 x 1.5 ISO. 1⁄2” NPT via adaptors
Environmental Protection: IP67 in accordance with BS EN 60529 : 1992 & IEC 60529 : 2001.

Vibration and shock parameters: Switches were subjected Lloyds Register Test Specification 1, section 13 BS EN60068-2-6 : 1996 (Test Fc vibration) and BS EN 60068-2-27 : 1995 (Test Ea shock).

Temperature Limitations: Pressure, Vacuum and Differential Pressure.
Process: Diaphragm actuated (unless otherwise stated) -30 to +90°C (Nitrile) or -20 to +150 Deg.C (Viton). Piston

actuated -30 to 120°C (Nitrile), –20 to +150°C (Viton), -50 to +150°C (PTFE) or -30 to +125°C (EPDM).Ambient: -50 to +85°C (standard). Storage: -50 to +85 Deg.C

(For temperature, level and flow switches please refer to specific pages).Certification: Switches can be supplied for gas environments.

ATEX/IECEx certified Exd Flameproof – Gas (with or without resistors)
CE Ex ll2G Exd llC T* Gb. T6 Tamb -50°C to +74°C, T5 Tamb -50°C to +89°C.

Special conditions for safe use. 1) No modifications must be made to the flamepaths of the unit without consultation of the drawings. 2) When conduit is utilised it must be sealed in accordance with Clause 13.2.2 of EN 60079-1:2007with a suitably approved (Ex d IIC Gb) conduit sealing devise. 3) Suitably rated cable must be selected based on T Class shown above. 4) Only suitably certified Ex d IIC Gb cable glands to be used.

ATEX/IECEx certified Exia Intrinsically Safe – Gas
CE Ex ll1G Exia llC T6 Ta –50 to +78°C, T5 Ta +93°C, T4 Ta +128°C or
CE Ex ll1G Exia llC T5 Ta –50 to +72°C, T4 Ta +122°C (with resistors).
Special conditions for safe use. 1) Aluminium may only be used when the ignition hazardous assessment shows there is no risk of ignition from incendive impact or abrasion sparks.

AEX certification is available on medium pressure, metal diaphragm and high pressure switches and rigid stem temperature switches.
Accuracy: +/-1% at 20°C