4x4 Monoblock Immersion Proof Keypad Flush/Raised KNM20S44, KNM30S44 FEATURES The Monobloc keypads are designed and manufactured to the highest quality standards. The robust rugged design makes them absolutely dust and water proof. The full stroke keys give an excellent tactile feedback. The patented magnetic retract mechanism ensures a long service life of the product. 4 x 4 Monobloc keypads are without electronics Monobloc keypads are available with embedded keys (KNM2) or with raised keys (KNM3). The key tops can be exchanged individually. In addition, different key marking sets are available. SPECIFICATIONS Mechanical Housing / Membrane Crastnie / Silicon Rubber Key Travel 1.35 mm Actual Force 2.2 N ± 0.4 N Connections Soldering Pins Electrical Supply Voltage Max. 42 V= Test Voltage 2,000 V~= Nom. Current (Ω load) Max. 125 mA~= Contact Rating Max. 2 W Environment Application Class as per DIN 40040 GSF Temperature Range -40ºC....+70ºC Storage Temperature -40ºC....+70ºC Protection Class (DIN) IP 67 Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085 4x4 Monoblock Immersion Proof Keypad Flush/Raised Dimensions Without Connection Print Part Number Keys Keypad 4x4 HxWxD (mm) Embedded 89.5 x 89.5 x 18.5 Raised 91.6 x 91.6 x 23.8 Key Type Configuration Connection Mode 4 x 4 Standard, without PCB Soldering pins Keypad Without Connection Print KNM20S44 Embedded KNM30S44 Raised Product specifications contained herein may be changed without prior notice. It is therefore advisable to contact Purdy Electronics before proceeding with the design of equipment incorporating this product. Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085